New Holland Tractor Workmaster 50 / Workmaster 60 / Workmaster 70 / Tier 4B (final). SERVICE MANUAL - page 25
Electrical systems - FAULT CODES
A. If there is continuity, there is a short circuit in the throttle valve actuator Z-9001 output 2 h-bridge circuit. Locate
and repair the shorted conductor.
B. If there is no continuity, continue to Step 4.
4. Replace the throttle valve actuator Z-9001.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is no longer active, return the machine to service.
B. If the fault is still active, check the ECU A-9000 for the appropriate service manual and re-flash, if necessary.
5. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 03 - Engine sensors and fuel injection (engine schematics)
(55.100.DP-C.20.E.03)
285
Electrical systems - FAULT CODES
DTC 6D4-02-ECU internal failure - 'WDA active' reported due to
errors in query/response communication
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the communication between CJ945 (power stage chips) and CY320
(power stage voltage supplier). If the ABE wire between the CJ-945 and CY320 becomes active due to an unknown
reason, this fault will occur.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
286
Electrical systems - FAULT CODES
DTC 6D4-03-ECU internal failure - 'ABE active' reported due to
overvoltage detection
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the communication between CJ945 (power stage chips) and CY320
(power stage voltage supplier). If the ABE wire between the CJ-945 and CY320 becomes active due to an over-
voltage detection, this fault will occur.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
287
Electrical systems - FAULT CODES
DTC 6D4-04-ECU internal failure - 'ABE active' reported due to
undervoltage detection
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the communication between CJ945 (power stage chips) and CY320
(power stage voltage supplier). If the ABE wire between the CJ-945 and CY320 becomes active due to an under-
voltage detection, this fault will occur.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
288
Electrical systems - FAULT CODES
DTC 6D4-12-ECU internal failure - 'WDA/ABE active' reported
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the communication between CJ945 (power stage chips) and CY320
(power stage voltage supplier). If there is an unexpected communication during this process, this fault will occur.
Solution:
1. Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
289
Electrical systems - FAULT CODES
DTC 72C-00-Glow plug 1 control circuit shorted to ground
Control Module : ECU
Context:
For information regarding the functional operation of the glow plug control module Z-9101 see Glow plug system
Glow plug control module - Overview - Glow plug control module (55.202). The Engine Control Unit (ECU)
A-9000 requests operation of the glow plug control module Z-9101 via a Pulse Width Modulated (PWM) control circuit
and monitors the status of possible electrical defects via a diagnostic feedback signal from the glow plug control
module Z-9101. If the ECU A-9000 is notified of a short circuit condition in the glow plug 1 R-9001 circuit, this fault
will occur.
Cause:
The glow plug control module Z-9101 has communicated to the ECU A-9000, via a diagnostic connection, that a short
circuit condition exists in the glow plug 1 R-9001 circuit.
Possible failure modes:
1. Faulty glow plug 1 R-9001, internal failure.
2. Faulty glow plug 1 R-9001 control circuit wiring, shorted to ground.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify that the fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 6.
2.
Check the glow plug for a short to ground condition.
Disconnect the engine harness (EN) from glow plug 1 R-9001 at connector X-9034.
Use a multimeter to check on the component for a grounded (shorted) condition :
From
To
Result
X-9034 pin 1
chassis ground
There should be 0.2 - 5.0 Ω.
A. If there is greater than 0.2 Ω, leave connector X-9034 disconnected and continue with Step 3.
B. If there is less than 0.2 Ω, the glow plug 1 R-9001 has failed internally, replace the glow plug.
3.
Check the glow plug 1 R-9001 control circuit for a short to ground condition.
With the key switch in the OFF position, use a multimeter to check for continuity on the engine harness (EN) side :
From
To
Result
X-9034 pin 1
chassis ground
There should be no continuity.
A. If there is continuity, continue with Step 4.
B. If there is no continuity, continue with Step 5.
4.
Locate the short to ground condition.
Carefully disconnect the vehicle harness (VE) from the glow plug control module Z-9101 at connector X-9113.
With the key switch in the OFF position, use a multimeter to check for continuity on the vehicle harness (VE) side :
290
Electrical systems - FAULT CODES
From
To
Result
X-9113 pin 2
chassis ground
There should be no continuity.
A. If there is continuity, the short to chassis ground condition is glow plug wiring in the vehicle harness (VE). Use
the appropriate service manual, if necessary, to locate and repair the grounded conductor.
B. If there is no continuity, continue with Step 6.
5. Replace the glow plug control module Z-9101, then use EST to check to see that this fault has been resolved.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, check the ECU A-9000 for the appropriate software and re-flash, if necessary.
6. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 01 - Power distribution and glow plugs (engine schematics)
(55.100.DP-C.20.E.01)
291
Electrical systems - FAULT CODES
DTC 72C-01-Glow plug 3 control circuit shorted to ground
Control Module : ECU
Context:
For information regarding the functional operation of the glow plug control module Z-9101 see Glow plug system
Glow plug control module - Overview - Glow plug control module (55.202). The Engine Control Unit (ECU)
A-9000 requests operation of the glow plug control module Z-9101 via a Pulse Width Modulated (PWM) control circuit
and monitors the status of possible electrical defects via a diagnostic feedback signal from the glow plug control
module Z-9101. If the ECU A-9000 is notified of a short circuit condition in the glow plug 3 R-9003 circuit, this fault
will occur.
Cause:
The glow plug control module Z-9101 has communicated to the ECU A-9000, via a diagnostic connection, that a short
circuit condition exists in the glow plug 3 R-9003 circuit.
Possible failure modes:
1. Faulty glow plug 3 R-9003, internal failure.
2. Faulty glow plug 3 R-9003 control circuit wiring, shorted to ground.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify that the fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 6.
2.
Check the glow plug for a short to ground condition.
Disconnect the engine harness (EN) from glow plug 3 R-9003 at connector X-9036.
Use a multimeter to check on the component for a grounded (shorted) condition :
From
To
Result
X-9036 pin 1
chassis ground
There should be 0.2 - 5.0 Ω.
A. If there is greater than 0.2 Ω, leave connector X-9036 disconnected and continue with Step 3.
B. If there is less than 0.2 Ω, the glow plug 3 R-9003 has failed internally, replace the glow plug.
3.
Check the glow plug 3 R-9003 control circuit for a short to ground condition.
With the key switch in the OFF position, use a multimeter to check for continuity on the engine harness (EN) side :
From
To
Result
X-9036 pin 1
chassis ground
There should be no continuity.
A. If there is continuity, continue with Step 4.
B. If there is no continuity, continue with Step 5.
4.
Locate the short to ground condition.
Carefully disconnect the vehicle harness (VE) from the glow plug control module Z-9101 at connector X-9113.
With the key switch in the OFF position, use a multimeter to check for continuity on the vehicle harness (VE) side :
292
Electrical systems - FAULT CODES
From
To
Result
X-9113 pin 1
chassis ground
There should be no continuity.
A. If there is continuity, the short to chassis ground condition is in the glow plug circuit in the vehicle harness (VE).
Use the appropriate service manual, if necessary, to locate and repair the grounded conductor.
B. If there is no continuity, continue with Step 6.
5. Replace the glow plug control module Z-9101, then use EST to check to see that this fault has been resolved.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, check the ECU A-9000 for the appropriate software and re-flash, if necessary.
6. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 01 - Power distribution and glow plugs (engine schematics)
(55.100.DP-C.20.E.01)
293
Electrical systems - FAULT CODES
DTC 72C-03-Glow plug 2 control circuit shorted to ground
Control Module : ECU
Context:
For information regarding the functional operation of the glow plug control module Z-9101 see Glow plug system
Glow plug control module - Overview - Glow plug control module (55.202). The Engine Control Unit (ECU)
A-9000 requests operation of the glow plug control module Z-9101 via a Pulse Width Modulated (PWM) control circuit
and monitors the status of possible electrical defects via a diagnostic feedback signal from the glow plug control
module Z-9101. If the ECU A-9000 is notified of a short circuit condition in the glow plug 2 R-9002 circuit, this fault
will occur.
Cause:
The glow plug control module Z-9101 has communicated to the ECU A-9000, via a diagnostic connection, that a short
circuit condition exists in the glow plug 2 R-9002 circuit.
Possible failure modes:
1. Faulty glow plug 2 R-9002, internal failure.
2. Faulty glow plug 2 R-9002 control circuit wiring, shorted to ground.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify that the fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 6.
2.
Check the glow plug for a short to ground condition.
Disconnect the engine harness (EN) from glow plug 2 R-9002 at connector X-9035.
Use a multimeter to check on the component for a grounded (shorted) condition :
From
To
Result
X-9035 pin 1
chassis ground
There should be 0.2 - 5.0 Ω.
A. If there is greater than 0.2 Ω, leave connector X-9035 disconnected and continue with Step 3.
B. If there is less than 0.2 Ω, the glow plug 2 R-9002 has failed internally, replace the glow plug.
3.
Check the glow plug 2 R-9002 control circuit for a short to ground condition.
With the key switch in the OFF position, use a multimeter to check for continuity on the engine harness (EN) side :
From
To
Result
X-9035 pin 1
chassis ground
There should be no continuity.
A. If there is continuity, continue with Step 4.
B. If there is no continuity, continue with Step 5.
4.
Locate the short to ground condition.
Carefully disconnect the vehicle harness (VE) from the glow plug control module Z-9101 at connector X-9113.
With the key switch in the OFF position, use a multimeter to check for continuity on the vehicle harness (VE) side :
294
Electrical systems - FAULT CODES
From
To
Result
X-9113 pin 7
chassis ground
There should be no continuity.
A. If there is continuity, the short to chassis ground condition is in glow plug circuit in the vehicle harness (VE).
Use the appropriate service manual, if necessary, to locate and repair the grounded conductor.
B. If there is no continuity, continue with Step 6.
5. Replace the glow plug control module Z-9101, then use EST to check to see that this fault has been resolved.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, check the ECU A-9000 for the appropriate software and re-flash, if necessary.
6. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 01 - Power distribution and glow plugs (engine schematics)
(55.100.DP-C.20.E.01)
295
Electrical systems - FAULT CODES
DTC 78B-03-Throttle valve actuator position sensor voltage is
higher than expected
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the throttle valve actuator Z-9001 position sensor signal circuit. If the
ECU A-9000 detects a voltage greater than 4.75 V in the throttle valve actuator Z-9001 position sensor signal circuit,
this fault will occur.
Cause:
The ECU A-9000 has detected a voltage greater than 4.75 V in the throttle valve actuator Z-9001 position sensor
signal circuit.
Possible failure modes:
1. Faulty throttle valve actuator Z-9001 wiring, short to a voltage source.
2. Faulty throttle valve actuator Z-9001, internal failure.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 7.
2.
Check the throttle valve actuator Z-9001 position sensor engine harness (EN) wiring for a short to battery condition.
Disconnect the engine harness (EN) from the throttle valve actuator Z-9001 at connector X-9011.
Disconnect the engine harness (EN) from the ECU A-9000 at connector X-9001.
With the key in the ON position, use a multimeter to perform the following voltage check on the engine harness
(EN) side :
From
To
Value
X-9011 pin 5
Chassis ground
There should be no voltage.
A. If there is voltage, there is a short to battery in the throttle valve actuator Z-9001 position sensor signal circuit
in the engine harness (EN). Locate and repair the shorted conductor.
B. If there is no voltage, leave connectors X-9011 and X-9001 disconnected and continue to Step 3.
3.
Check the throttle valve actuator Z-9001 position sensor engine harness (EN) wiring for a short circuit condition.
With the key in the OFF position, use a multimeter to perform the following continuity check on the engine harness
(EN) side :
From
To
Value
X-9011 pin 5
X-9011 pin 1
There should be no continuity.
X-9011 pin 5
X-9011 pin 3
There should be no continuity.
X-9011 pin 5
X-9011 pin 6
There should be no continuity.
X-9011 pin 5
X-9011 pin 2
There should be no continuity.
A. If there is continuity, there is a short circuit in the throttle valve actuator Z-9001 position sensor signal circuit in
the engine harness (EN). Locate and repair the shorted conductor.
296
Electrical systems - FAULT CODES
B. If there is no continuity, leave connectors X-9011 and X-9001 disconnected and continue to Step 4.
4.
Check the throttle valve actuator Z-9001 position sensor engine harness (EN) wiring for an open circuit.
With the key in the OFF position, use a multimeter to perform the following continuity check on the engine harness
(EN) side :
From
To
Value
X-9011 pin 5
X-9001 pin A53
There should be continuity.
X-9011 pin 1
X-9001 pin A08
There should be continuity.
X-9011 pin 3
X-9001 pin A37
There should be continuity.
NOTE: Wiggle the harness during the check to promote an intermittent electrical connection.
A. If there is no continuity, there is an open circuit in the throttle valve actuator Z-9001 position sensor signal circuit
in the engine harness (EN). Locate and repair the broken conductor.
B. If there is continuity, leave connectors X-9011 and X-9001 disconnected and continue to Step 5.
5.
Check the throttle valve actuator Z-9001 position sensor vehicle harness (VE) wiring for a short to a voltage source
condition.
With the key in the OFF position, use a multimeter to perform the following continuity check on the vehicle harness
(VE) side :
From
To
Value
X-9001 pin A53
All pins in connector X-9001.
There should be no continuity.
A. If there is continuity, there is a short to a voltage source in the throttle valve actuator Z-9001 position sensor
signal circuit in the engine harness (EN). Use the appropriate service manual, if necessary, to locate and repair
the shorted conductor.
B. If there is no continuity, leave connector X-9011 disconnected and continue to Step 6.
6.
Replace the throttle valve actuator Z-9001.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is no longer active, return the machine to service.
B. If the fault is still active, check the ECU A-9000 for the appropriate service manual and re-flash, if necessary.
7.
Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 03 - Engine sensors and fuel injection (engine schematics)
(55.100.DP-C.20.E.03)
297
Electrical systems - FAULT CODES
DTC 78B-04-Throttle valve actuator position sensor voltage is lower
than expected
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the throttle valve actuator Z-9001 position sensor signal circuit. If
the ECU A-9000 detects a voltage less than 0.25 V in the throttle valve actuator Z-9001 position sensor signal circuit,
this fault will occur.
Cause:
The ECU A-9000 has detected a voltage less than 0.25 V in the throttle valve actuator Z-9001 position sensor signal
circuit.
Possible failure modes:
1. Faulty throttle valve actuator Z-9001 wiring, short to ground condition.
2. Faulty throttle valve actuator Z-9001, internal failure.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 5.
2.
Check the throttle valve actuator Z-9001 position sensor engine harness (EN) wiring for a short to ground condition.
Disconnect the engine harness (EN) from the throttle valve actuator Z-9001 at connector X-9011.
With the key in the OFF position, use a multimeter to perform the following continuity check on the engine harness
(EN) side :
From
To
Value
X-9011 pin 5
Chassis ground
There should be no continuity.
X-9011 pin 5
X-9011 pin 3
There should be no continuity.
X-9011 pin 5
X-9011 pin 2
There should be no continuity.
A. If there is continuity, there is a short to ground condition in the throttle valve actuator Z-9001 position sensor
signal circuit in the engine harness (EN).Locate and repair the shorted conductor.
B. If there is no continuity, leave connector X-9011 disconnected and continue to Step 3.
3.
Check the throttle valve actuator Z-9001 position sensor vehicle harness (VE) wiring for a short to ground condition.
Disconnect the engine harness (EN) from the ECU A-9000 at connector X-9001.
With the key in the OFF position, use a multimeter to perform the following continuity check on the engine harness
(EN) side :
From
To
Value
X-9001 pin A53
All pins in connector X-9001
There should be no continuity.
A. If there is continuity, there is a short to ground in the throttle valve actuator Z-9001 engine harness (EN) po-
sition sensor signal circuit. Use the appropriate service manual, if necessary, to locate and repair the shorted
conductor.
298
Electrical systems - FAULT CODES
B. If there is no continuity, leave connector X-9011 disconnected and continue to Step 4.
4. Replace the throttle valve actuator Z-9001.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is no longer active, return the machine to service.
B. If the fault is still active, check the ECU A-9000 for the appropriate service manual and re-flash, if necessary.
5. Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 03 - Engine sensors and fuel injection (engine schematics)
(55.100.DP-C.20.E.03)
299
Electrical systems - FAULT CODES
DTC 78D-03-Throttle valve actuator control circuit over load
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 monitors the throttle valve actuator Z-9001 output 1 and output 2 h-bridge
circuits. The ECU A-9000 monitors both circuits for a short circuit condition. If the ECU A-9000 determines that the
output 1 circuit and output 2 circuits are shorted together, this fault will occur.
Cause:
The ECU A-9000 has detected a short circuit between the throttle valve actuator Z-9001 output 1 and output 2 h-bridge
circuits.
Possible failure modes:
1. Faulty throttle valve actuator Z-9001 h-bridge wiring short circuit.
2. Faulty throttle valve actuator Z-9001, internal failure.
3. Faulty ECU A-9000, software.
Solution:
1.
Verify fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 4.
2.
Check the throttle valve actuator Z-9001 h-bridge circuit engine harness (EN) wiring for a short circuit.
Disconnect the engine harness (EN) from the throttle valve actuator Z-9001 at connector X-9011.
With the key in the OFF position, use a multimeter to perform the following continuity check on the engine harness
(EN) side :
From
To
Value
X-9011 pin 2
X-9011 pin 6
There should be no continuity.
A. If there is continuity, there is a short circuit in the throttle valve actuator Z-9001 h-bridge wiring. Locate and
repair the shorted conductor.
B. If there is no continuity, leave connector X-9011 disconnected and continue to Step 3.
3.
Replace the throttle valve actuator Z-9001.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is no longer active, return the machine to service.
B. If the fault is still active, check the ECU A-9000 for the appropriate service manual and re-flash, if necessary.
4.
Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
300
Electrical systems - FAULT CODES
Wiring harnesses - Electrical schematic sheet 03 - Engine sensors and fuel injection (engine schematics)
(55.100.DP-C.20.E.03)
301
Electrical systems - FAULT CODES
DTC 78D-04-Throttle valve actuator control circuit supply voltage
too low
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 internally monitors the operation of the H-bridge Pulse Width Modulated (PWM)
control circuit for the Throttle Valve Actuator (TVA) Z-9001 motor actuator for electrical defects. If the ECU A-9000
senses too low an output driver supply voltage, this fault will occur.
Cause:
The ECU A-9000 is sensing too high a system voltage fluctuation.
Solution:
1.
Verify that the fault is present and active.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continues with Step 2.
B. If the fault is no longer present or in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 4.
2.
Check for related faults.
Use the EST to check for faults relative to low battery, control system voltage level or throttle valve actuator Z-9001.
A. If low voltage level faults are present, resolve those faults and then return to this fault.
B. If no low voltage level faults are present, continue with Step 3.
3.
Check the ECU A-9000 for the appropriate software and re-flash, if necessary.
A. If the fault has been resolved, return the machine to service.
B. If the fault has not been resolved, escalate an ASIST concern.
4.
Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed.
Flex the harnesses involved to reveal intermittent breaks or shorts in the wiring concerned.
Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
302
Electrical systems - FAULT CODES
DTC 7BA-02-Timeout Error of CAN-Receive-Frame CM1BC
Control Module : ECU
Context:
The Engine Control Unit (ECU) A-9000 is capable of connecting to and communicating on two separate Controller
Area Networks (CAN). Proper configuration and monitoring of the two twisted pair configured networks is also a func-
tion of the ECU A-9000. CAN Node A Bus is the main vehicle interface bus. The ECU A-9000 provides a CAN
termination resistor for the CAN Node A Bus, internal to the ECU A-9000. If the ECU A-9000 senses that CAN Node
A Bus is not functioning properly, this fault will occur.
Cause:
ECU A-9000 has sensed a timeout of required vehicle controller data provided on CAN Node A.
Possible failure modes:
1. Faulty supply voltage or ground, missing.
2. Faulty CAN circuit wiring, open circuit, short to ground, or short circuit.
3. Faulty ECU A-9000, termination resistor or software.
Solution:
1.
Verify fault is present and in active state.
Use the Electronic Service Tool (EST) to check the status of this fault.
A. If the fault is present and active, continue with Step 2.
B. If the fault is no longer present or is in an inactive state, the fault may be intermittent and not currently active.
Continue with Step 5.
2.
Check for other vehicle CAN faults.
Use the EST to determine if vehicle CAN faults exist.
A. If other vehicle CAN faults do exist, resolve the vehicle CAN faults, then check to see that this fault is also
resolved.
B. If other vehicle CAN faults do not exist, continue with Step 3.
3.
Check the ECU A-9000 supply voltage.
Disconnect the vehicle (VE) harness from the ECU A-9000 at connector X-9102.
To energize the Main relay K-9102, place a jumper wire between the vehicle harness (VE) side of connector X-9102
pin K28 and chassis ground.
With the key switch in the “ON” position, use a multimeter to check for voltage on the vehicle (VE) harness side:
From
To
Value
X-9102 pin K01
X-9102 pin K02
There should be approximately
12.0 V.
X-9102 pin K03
X-9102 pin K04
There should be approximately
12.0 V.
X-9102 pin K05
X-9102 pin K06
There should be approximately
12.0 V.
A. If the voltage is present on all of the checks, leave connector X-9102 disconnected and continue with Step 4.
B. If the voltage is not present for one or more of the checks, see the appropriate vehicle service manual and
electrical schematics, if necessary, to locate and restore supply power to the ECU A-9000.
303
Electrical systems - FAULT CODES
4.
Determine the condition of the ECU A-9000 CAN circuit.
With the key switch in the OFF position, use a multimeter to measure the resistance of the CAN connection on the
vehicle (VE) harness side:
From
To
Value
X-9102 pin K24
X-9102 pin K25
There should be 120 Ω.
X-9102 pin K24
chassis ground
There should be no continuity
X-9102 pin K25
chassis ground
There should be no continuity
Use a multimeter to measure the resistance of the CAN termination resistor, internal to the ECU A-9000:
From
To
Value
X-9102 pin K24
X-9102 pin K25
There should be 120 Ω.
A. If the measured resistances are correct and neither conductor is grounded, check the ECU A-9000 for the
appropriate software and re-flash, if necessary.
B. If the measured resistances are not correct or one or both of the conductors is grounded, see the appropriate
vehicle service manual and electrical schematics, if necessary, to locate and restore the termination resistance
to the CAN circuit.
5.
Visually inspect the relevant harnesses and connectors for damage, bent or dislocated pins, corroded terminals,
or broken wires. Verify that the connectors are fully installed. Flex the harnesses involved to reveal intermittent
breaks or shorts in the wiring concerned. Operate the machine while you monitor the display.
A. If you find damage or the display indicates other than normal display readings, then repair the damage discov-
ered during the inspection or locate and repair the other than normal display condition and verify that the error
has been resolved.
B. If you do not find damage and the display indicates only normal readings, then erase the fault code and continue
operation.
Wiring harnesses - Electrical schematic sheet 02 - Engine Control Unit (ECU) power and after treatment
system (engine schematics) (55.100.DP-C.20.E.02)
304
Index
Electrical systems - 55
FAULT CODES - DTC
DTC
11C-02-Water in fuel sensor or sensor circuit failure
8
DTC
11C-03-Water in fuel detected or water in fuel circuit failure
10
DTC
131-03-Engine coolant temperature sensor voltage is higher than expected
12
DTC
131-04-Engine coolant temperature sensor voltage is lower than expected
14
DTC
133-03-Intake manifold temperature sensor voltage is higher than expected
16
DTC
133-04-Intake manifold temperature sensor voltage is lower than expected
18
DTC
134-00-Intake manifold pressure sensor drifted high
20
DTC
134-01-Intake manifold pressure sensor drifted low
21
DTC
134-03-Intake manifold pressure sensor voltage is higher than expected
22
DTC
134-04-Intake manifold pressure sensor voltage is lower than expected
24
DTC
135-03-Fuel temperature sensor voltage is higher than expected
26
DTC
135-04-Fuel temperature sensor voltage is lower than expected
28
DTC
136-03-Fuel rail pressure sensor voltage is higher than expected
30
DTC
136-04-Fuel rail pressure sensor voltage is lower than expected
32
DTC
137-02-Fuel pressure relief valve reached maximum allowed opening count
34
DTC
137-03-Fuel pressure relief valve is open
35
DTC
137-04-Fuel pressure relief valve is forced to open, perform pressure increase
36
DTC
137-12-Averaged rail pressure is outside the expected tolerance range
37
DTC
141-02-Crankshaft speed sensor values are not plausible
38
DTC
141-04-Crankshaft speed sensor pattern is not plausible
40
DTC
143-02-Camshaft speed sensor values are not plausible
42
DTC
143-04-Camshaft speed sensor pattern is not plausible
44
DTC
144-03-Compared camshaft and crankshaft speed sensor values are not plausible
46
DTC
151-03-Fuel rail pressure has exceeded maximum positive deviation limits
47
DTC
153-03-Fuel rail pressure has exceeded maximum negative deviation limits
48
DTC
154-03-Fuel rail pressure has dropped below the minimum limit
50
DTC
155-03-Fuel rail pressure has exceeded maximum limit
51
DTC
157-03-High pressure pump fuel delivery quantity in over run exceeds a maximum threshold
53
DTC
158-03-Fuel pump pressure has exceeded desired pressure limits
54
DTC
159-02-Fuel metering unit has an open load error
55
DTC
15D-03-PMCat Inducement less severe derating level
57
DTC
161-02-Short circuit error of injector in cylinder 1
58
DTC
161-03-Short circuit of low side to high source of injector in cylinder 1
61
DTC
162-02-Short circuit error of injector in cylinder 2
63
305
DTC
162-03-Short circuit of low side to high source of injector in cylinder 2
66
DTC
163-02-Short circuit error of injector in cylinder 3
68
DTC
163-03-Short circuit of low side to high source of injector in cylinder 3
71
DTC
167-02-Open load error of injector in cylinder 1
73
DTC
168-02-Open load error of injector in cylinder 2
75
DTC
169-02-Open load error of injector in cylinder 3
77
DTC
171-03-Injection bank 1 short circuit failure (all injectors of the same bank can be affected)
79
DTC
173-03-Injection bank 2 short circuit failure (all injectors of the same bank can be affected)
80
DTC
17C-12-ECU internal failure - Injector CY33x component
82
DTC
17E - 04-Injection control : Number of injections is limited by system
85
DTC
17E-02-Number of desired injections exceeds threshold
83
DTC
17E-03-Exceeded the number of injections for a given engine speed
84
DTC
17E-12-Number of injections is limited by quantity balance of high pressure pump
86
DTC
17F-12-Missing adjustment value programming for injector in cylinder 1
87
DTC
18F-02-Lambda sensor heater power stage open circuit
88
DTC
18F-03-Lambda sensor heater power stage short circuit to battery
90
DTC
18F-04-Lambda sensor heater power stage short circuit to ground
94
DTC
18F-04-Lambda sensor heater power stage short circuit to ground
92
DTC
199-02-Turbocharger boost pressure is higher than expected
97
DTC
199-02-Turbocharger boost pressure is higher than expected
96
DTC
1B1-03-CAN A Bus off failure
98
DTC
1B1-04-CAN A Bus off passive failure
100
DTC
1B5-02-CAN communication error between vehicle controller to ECU
102
DTC
1B7-02-CAN transmit error - EEC1 message (Electronic Engine Control 1 message - Torque,
accelerator pedal, engine speed, and other signals)
104
DTC 1C6-03-CAN communication failure between vehicle controller and ECU controller - TSC1_PE
message
106
DTC 1C8-03-CAN communication failure between vehicle controller and ECU controller - TSC1_VE
message
108
DTC 1D1-03-ECU internal failure
110
DTC 1D2-02-ECU internal failure - EEPROM write error
111
DTC 1D2-03-ECU internal failure - EEPROM erase error
112
DTC 1D2-04-ECU internal failure - EEPROM read error
113
DTC 1D2-12-ECU internal failure - EEPROM write/read error
114
DTC 1D3-12-ECU internal failure - Software resets in DSM 0
115
DTC 1D4-12-ECU internal failure - Query/response communication errors
116
DTC 1D8-12-ECU internal failure - SPI communication error
117
DTC 1D9-02-ECU internal failure - ADC test
118
DTC 1D9-03-ECU internal failure - Voltage ratio in ADC monitoring
119
DTC 1D9-12-ECU internal failure - NTP error in ADC monitoring
120
DTC 1DA-12-ECU internal failure - Fuel calibration
121
DTC 1E1-03-Starter relay high side driver circuit shorted to battery
122
DTC 1E1-04-Starter relay high side driver circuit shorted to ground
124
306
DTC
1E3-03-Fuel injection requested during overrun
126
DTC
1E4-03-ECU internal failure - Calculated engine speed
127
DTC
1E6-12-ECU 5 volt sensor supply 1 out of range
128
DTC
1E7-03-ECU 5 volt sensor supply 2 out of range
132
DTC
1E8-03-ECU 5 volt sensor supply 3 out of range
134
DTC
1EB-03-ECU internal failure - Ambient pressure sensor voltage is higher than expected
136
DTC
1EB-04-ECU internal failure - Ambient pressure sensor voltage is lower than expected
137
DTC
1F7-00-PMCat inlet temperature sensor physical range check high
138
DTC
1F7-03-PMCat inlet temperature sensor voltage is higher than expected
140
DTC
1F7-04-PMCat inlet temperature sensor voltage is lower than expected
142
DTC
225-03-Main relay stuck error
146
DTC
225-03-Main relay stuck error
144
DTC
226-03-Battery voltage is higher than expected
149
DTC
226-04-Battery voltage is lower than expected
150
DTC
236-03-Rail pressure sensor value is above maximum offset
152
DTC
236-03-Rail pressure sensor value is above maximum offset
153
DTC
236-04-Rail pressure sensor value is below minimum offset
154
DTC
237-04-Fuel pressure relief valve is forced to open, perform pressure shock
156
DTC
237-04-Fuel pressure relief valve is forced to open, perform pressure shock
155
DTC
237-12-Quantity balance check if a successful PRV opening is ensured
158
DTC
237-12-Quantity balance check if a successful PRV opening is ensured
157
DTC
238-03-Oil pressure switch active with engine off
159
DTC
238-04-Low oil pressure
161
DTC
256-03-Engine speed limitation via fuel injection cut off is active
163
DTC
259-03-Fuel metering unit is shorted to battery voltage at the low side
164
DTC
25A-03-Error in comparing energizing time to maximum value for injector in cylinder 1
166
DTC
25A-04-Error in comparing energizing time to minimum value for injector in cylinder 1
167
DTC
25D-03-PMCat Inducement most severe derating level
168
DTC 26F-04-The minimum rail pressure value necessary to allow fuel injection has not been reached
169
DTC 27F-12-Missing adjustment value programming for injector in cylinder 2
170
DTC 299-04-Turbocharger boost pressure is lower than expected
171
DTC 2B4-02-CAN communication failure between vehicle controller and ECU - BC2ECU2 message
172
DTC 2C6-02-CAN communication failure between vehicle controller and ECU controller - TSC1_PE
message
174
DTC 2CC-00-Engine controller internal temperature out of range (High)
176
DTC 2CC-01-Engine controller internal temperature out of range (Low)
177
DTC 2CC-12-Engine controller internal temperature out of range (SPI Error - LM71)
178
DTC 2D1-03-ECU internal failure - Error on R2S2 module
179
DTC 2D3-12-ECU internal failure - Software resets in DSM 1
180
DTC 2D4-04-ECU internal failure - ROM error
181
DTC 2E1-02-Starter relay low side driver circuit open
182
307
DTC 2E1-03-Starter relay low side driver circuit shorted to battery
184
DTC 2E1-04-Starter relay low side driver circuit shorted to ground
186
DTC 2E1-12-Starter relay low side ECU driver circuit over temperature
188
DTC 32B-02-Glow plug control circuits open
190
DTC 32B-03-Glow plug control circuits shorted to battery
192
DTC 32B-04-Glow plug control circuits shorted to ground
194
DTC 32B-12-Glow plug control circuits shorted
196
DTC 359-04-Fuel metering unit is shorted to ground at the low side
198
DTC 35A-03-Error in comparing energizing time to maximum value for injector in cylinder 2
200
DTC 35A-04-Error in comparing energizing time to minimum value for injector in cylinder 2
201
DTC 35D-03-PMCat Inducement warning
202
DTC 37F-12-Missing adjustment value programming for injector in cylinder 3
203
DTC 3C8-02-CAN communication failure between vehicle controller and ECU controller - TSC1_VE
message
204
DTC
3D4-02-ECU internal failure - ECU shutdown test failure
206
DTC
3D4-03-ECU internal failure - Wrong set response time
207
DTC
3D4-04-ECU internal failure - SPI errors during MoCSOP execution
208
DTC
3D4-12-ECU internal failure - Loss of synchronization to MM from CPU
209
DTC
3E3-00-ECU internal failure - Fuel injection energizing time is not plausible
210
DTC
3E3-01-ECU internal failure - Fuel injection energizing phase is not plausible
211
DTC
3E3-02-Fuel injection correction has exceeded a minimum limit
212
DTC
3E3-03-ECU internal failure - Injection quantity correction
213
DTC
3E3-04-ECU internal failure - Rail pressure plausibility
214
DTC
3E3-12-ECU internal failure - Torque request comparison
215
DTC
3F6-03-DOC inlet temperature sensor voltage is higher than expected
216
DTC
3F6-04-DOC inlet temperature sensor voltage is lower than expected
218
DTC
426-03-Level 2 Monitoring : Reported Overvoltage of Supply
220
DTC
426-04-Level 2 Monitoring : Reported Under Voltage of Supply
221
DTC
435-12-Rail pressure sensor value is intermittent
222
DTC
455-03-High pressure pump fuel delivery quantity at low idle is too high
224
DTC
459-03-Fuel metering unit intermittent electrical connection failure
225
DTC
45A-03-Error in comparing energizing time to maximum value for injector in cylinder 3
227
DTC
45A-04-Error in comparing energizing time to minimum value for injector in cylinder 3
228
DTC
48D-02-Throttle valve actuator control circuit open
229
DTC
48D-03-Throttle valve actuator control circuit over current
231
DTC
48D-12-Throttle valve actuator control circuit over temperature
233
DTC
4D4-03-ECU internal failure - Overvoltage monitoring error
235
DTC
4D4-04-ECU internal failure - Undervoltage monitoring error
236
DTC
4E3-03-ECU internal failure - Post injection quantity
237
DTC
4E3-04-Level 2 Monitoring : Diagnosis fault check to report the error to demand for an ICO
due to an error in the PoI2 shut-off
238
DTC 4E3-12-Level 2 Monitoring : Diagnosis fault check to report the error to demand for an ICO
due to an error in the PoI3 efficiency factor
239
308
DTC
52C-01-Glow Control Unit (GCU) data error
240
DTC
532-03-Engine coolant temperature has exceeded the warning threshold
242
DTC
535-03-Maximum rail pressure exceeded
243
DTC
54C-03-Engine over speed condition detected
244
DTC
559-12-Fuel metering unit has an over-temperature error
245
DTC
58C-03-Throttle valve actuator will not open to commanded position
247
DTC
58C-04-Throttle valve actuator will not close to commanded position
248
DTC
58D-03-Throttle valve actuator control circuit high side shorted to battery
249
DTC
58D-04-Throttle valve actuator control circuit high side shorted to ground
251
DTC
5D2-03-ECU internal failure - EEPROM memory failure
253
DTC
5D4-02-ECU internal failure - WDA is not working correctly
254
DTC
5D4-03-ECU internal failure - Alarm task period error
255
DTC
5D4-04-ECU internal failure - Positive test failed
256
DTC
5D4-12-ECU internal failure - Timeout in the shut off path test error
257
DTC
5E3-03-ECU internal failure - Torque request due to fuel pressure exceeds maximum torque
limit
258
DTC
5E3-04-ECU internal failure - Torque request due to air control exceeds maximum torque limit
259
DTC
5E3-12-ECU internal failure - Torque request exceeds maximum torque limit
260
DTC
601-02-Lambda sensor nernst cell open circuit
261
DTC
602-02-Lambda sensor pump current open circuit
263
DTC
605-03-Lambda sensor O2 value above maximum threshold
265
DTC
606-02-Lambda sensor virtual ground open circuit
267
DTC
607-03-Lambda sensor O2 calibrator too high error
269
DTC
607-04-Lambda sensor O2 calibrator too low error
270
DTC
609-02-ECU internal failure - SPI chip error configuration
271
DTC
60A-04-Lambda sensor heater battery voltage too low
272
DTC
60B-03-Lambda sensor cell circuits short circuit to battery
274
DTC
60B-04-Lambda sensor cell circuits short circuit to ground
276
DTC
60C-03-Lambda sensor estimated temperature higher than threshold
278
DTC
60C-04-Lambda sensor estimated temperature lower than threshold
280
DTC
68D-03-Throttle valve actuator control circuit low side shorted to battery
282
DTC
68D-04-Throttle valve actuator control circuit low side shorted to ground
284
DTC
6D4-02-ECU internal failure - 'WDA active' reported due to errors in query/response commu-
nication
286
DTC 6D4-03-ECU internal failure - 'ABE active' reported due to overvoltage detection
287
DTC 6D4-04-ECU internal failure - 'ABE active' reported due to undervoltage detection
288
DTC 6D4-12-ECU internal failure - 'WDA/ABE active' reported
289
DTC 72C-00-Glow plug 1 control circuit shorted to ground
290
DTC 72C-01-Glow plug 3 control circuit shorted to ground
292
DTC 72C-03-Glow plug 2 control circuit shorted to ground
294
DTC 78B-03-Throttle valve actuator position sensor voltage is higher than expected
296
DTC 78B-04-Throttle valve actuator position sensor voltage is lower than expected
298
309
DTC 78D-03-Throttle valve actuator control circuit over load
300
DTC 78D-04-Throttle valve actuator control circuit supply voltage too low
302
DTC 7BA-02-Timeout Error of CAN-Receive-Frame CM1BC
303
310
CNH Industrial America New Holland Site 100 Brubaker Avenue New Holland, Pennsylvania United States
17557
SERVICE - Technical Publications & Tools
PRINTED IN U.S.A.
All rights reserved. No part of the text or illustrations of this publication may be reproduced.
NEW HOLLAND policy is one of continuous improvement and the right to change prices, specification or equipment
at any time without notices is reserved.
All data given in this publication is subject to production variations. Dimensions and weight are approximate only and
the illustrations do not necessarily show products in standard condition. For exact information about any particular
product, please consult your NEW HOLLAND Dealer.
EN
SERVICE MANUAL
Platform, cab, bodywork, and decals
Workmaster™ 50
Workmaster™ 60
Workmaster™ 70
90
Contents
Platform, cab, bodywork, and decals - 90
[90.100] Engine hood and panels
90.1
[90.110] Operator platform less cab
90.2
[90.116] Fenders and guards
90.3
[90.118] Protections and footboards
90.4
90
Platform, cab, bodywork, and decals - 90
Engine hood and panels - 100
Workmaster™ 50
Workmaster™ 60
Workmaster™ 70
90.1 [90.100] / 1
Contents
Platform, cab, bodywork, and decals - 90
Engine hood and panels - 100
SERVICE
Hood
Remove
3
Install
7
90.1 [90.100] / 2
Platform, cab, bodywork, and decals - Engine hood and panels
Hood - Remove
Front Hood Removal
1. Slide the lock (1) to right, hold and raise the hood.
GNIL14TR00533AA
1
2. Disconnect the battery terminals.
NOTE: Always disconnect the negative cable (1) first.
GNIL14TR00784AA
2
3. Unscrew hood mounting bracket bolts (1) and nuts (2)
from engine frame.
GNIL14TR00856AA
3
4. Disconnect headlight harness connection and horn
wirings (1). Unscrew gas strut bolt (2) and remove the
front hood.
GNIL14TR00822AA
4
90.1 [90.100] / 3
Platform, cab, bodywork, and decals - Engine hood and panels
Rear Hood Removal
5. Remove the steering wheel cover (1).
GNIL14TR00512AA
5
6. Remove the steering wheel nut (1).
GNIL14TR00846AA
6
7. Loosen the steering wheel securing nut and remove
the steering wheel using tool number 82834312 and
9971375.
GNIL14TR00704AA
7
8. Disconnect the wiring connection (1).
GNIL14TR00711AA
8
90.1 [90.100] / 4
Platform, cab, bodywork, and decals - Engine hood and panels
9. Loosen the bolts (1) and remove the shuttle lever.
GNIL14TR00705AA
9
10. Remove the hand throttle knob.
GNIL14TR00706AA
10
11. Unscrew all the screws (1) of instrument panel.
GNIL14TR00707AA
11
12. Pull out the instrument panel from rear hood. Discon-
nect all electric wire connections of the switches and
hourmeter cable from instrument cluster. Also remove
fuel tank cap.
GNIL14TR00714AA
12
90.1 [90.100] / 5
Platform, cab, bodywork, and decals - Engine hood and panels
13. Remove pull to stop knob. Unscrew all rear hood se-
curing screws and bolts.
GNIL14TR00849AA
13
14. Remove pull to stop knob and then centre panel. Un-
screw all rear hood securing bolts lift and remove rear
hood.
GNIL14TR00715AA
14
90.1 [90.100] / 6
Platform, cab, bodywork, and decals - Engine hood and panels
Hood - Install
For installation, follow the removal process in reverse
order.
90.1 [90.100] / 7
Index
Platform, cab, bodywork, and decals - 90
Engine hood and panels - 100
Hood - Install
7
Hood - Remove
3
90.1 [90.100] / 8
Platform, cab, bodywork, and decals - 90
Operator platform less cab - 110
Workmaster™ 50
Workmaster™ 60
Workmaster™ 70
90.2 [90.110] / 1
Contents
Platform, cab, bodywork, and decals - 90
Operator platform less cab - 110
SERVICE
Platform
Remove
3
Install
4
90.2 [90.110] / 2
Platform, cab, bodywork, and decals - Operator platform less cab
Platform - Remove
1. Disconnect the wiring coupler of the operator’s seat.
Loosen the bolts (1) and remove the operator’s seat
from the hydraulic lift assembly.
GNIL14TR04607AB
1
90.2 [90.110] / 3