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Suzuki Grand Vitara JB419. Service manual - part 12

Engine General Information and Diagnosis: 1A-25

DTC P0016: Crankshaft Position-Camshaft Position Correlation Malfunction

S5JB0B1104089

NOTE

• Conditions for applying fault finding procedures to stored faults: The fault becomes present after an

attempt to start.

• If the fault is stored, erase the fault from the ECM memory. Turn OFF ignition switch, start the engine

and check that the fault does not reappear.

• Use service wire for any operation on the ECM connectors.

Wiring Diagram
For wiring circuit and connector number, refer to “A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A”.

Detecting Condition

Troubleshooting

Displaying on SUZUKI scan tool

Detecting condition

1.DEF

Inconsistency of signal

Check the CKP sensor and CMP sensor connections.
Check the ECM connections.
Repair if necessary.
Check the continuity and the absence of interference resistance with the connector disconnected from the
following connections:
• Between “C08-1” wire of CMP sensor connector and “C86-18” terminal of ECM connector
• Between “C08-2” wire of CMP sensor connector and “C86-15” terminal of ECM connector
• Between “C20-1” wire of CKP sensor connector and “C86-17” terminal of ECM connector
• Between “C20-2” wire of CKP sensor connector and “C86-16” terminal of ECM connector
Repair if necessary.
With ignition switch ON and the CMP sensor connected: Use a voltmeter to measure the voltage across “C08-1”
and “C08-3” wire of the CMP sensor connector:
The voltage displayed should be equal to the battery voltage –0.08 to 0.08 V.
• If the voltage is outside permitted tolerance values, take the measurement again on the connector, with the

CMP sensor disconnected,

• If the voltage is still outside permitted tolerance values with the sensor disconnected.
Check the following connection for continuity and for the absence of interference resistance:
• Between “C08-3” wire of the CMP sensor connector and “E33-6” wire of main relay mounting connector
• If the measured voltage is correct with the sensor disconnected.
• Measure the resistance of the CMP sensor between “C20-2” and “C20-3” terminals.

Replace the CMP sensor if the resistance is not 9750 – 10750

Ω at 20 °C, 68 °F

• Check that the CKP sensor is correctly mounted and that the flywheel target is not damaged.
• Check that the gap between the CKP sensor and the engine flywheel is 0.5 – 1.8 mm (0.020 – 0.017 in).
• Check the resistance of the CKP sensor between “C20-1” and “C20-2” terminals.

Replace the CKP sensor if its resistance is not 720 – 880

Ω at 20 °C, 68 °F.

1A-26 Engine General Information and Diagnosis:

DTC P0033: Turbo Charger Bypass Valve Control Circuit Malfunction

S5JB0B1104090

CAUTION

This fault can result in a rapid and significant fouling of the diesel particulate filter.

NOTE

• Conditions for applying the fault finding procedure to stored faults:

The fault is declared present after:
– Engine start.
– A road test.
– Output test “Boost pressure valve” on SUZUKI scan tool.

• If the fault is present:

– Turbocharging is no longer authorized.
– The EGR function is inhibited.
– The vehicle performance is reduced.
– The Injection warning light (gravity 1 warning light) is lit.
– If CC.0 is present, the Malfunction indicator light (MIL) will come on after three consecutive

driving cycles (starting +5 seconds + turn OFF ignition switch and wait 40 seconds.).

• Use service wire for all operations on the ECM connectors.

Wiring Diagram
For wiring circuit and connector number, refer to “A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A”.

Detecting Condition

Troubleshooting for CC.1: Short circuit to +12 V

Troubleshooting for CC.0: Short circuit to vehicle body ground and CO: Open circuit

Displaying on SUZUKI scan tool

Detecting condition

CC.1

Short circuit to +12 V

CC.0

Short circuit to vehicle body ground

Open circuit

1.DEF

Internal electronic fault

Check the boost pressure control solenoid valve connections.
Check the ECM connections.
Repair if necessary.
Measure the resistance of the boost pressure control solenoid valve between its “C90-1” and “C90-2” terminals:
If the resistance displayed is not 14.7 – 16.1

Ω at 20 °C, 68 °F, replace the boost pressure control solenoid valve.

Check the continuity and insulation from the +12 V feed of the following connection:
• Between “C90-1” wire of boost pressure control solenoid valve connector and “C85-23” terminal of ECM

connector

Repair if necessary.
If the fault is still present, replace the boost pressure control solenoid valve.

Ω at 20 °C, 68 °F, replace the boost pressure control solenoid valve.

Check the continuity and insulation from vehicle body ground of the following connections:
• Between “C90-1” wire of boost pressure control solenoid valve connector and “C85-23” terminal of ECM

connector

• Between “C90-2” wire of boost pressure control solenoid valve connector and “E33-6” wire of main relay

mounting connector

Repair if necessary.
If the fault is still present, replace the boost pressure control solenoid valve.

Engine General Information and Diagnosis: 1A-27

Troubleshooting for 1.DEF: Internal electronic fault

DTC P0089: Fuel Pressure Regulator 1 Performance Malfunction

S5JB0B1104091

NOTE

• Conditions for applying fault finding procedures to stored faults:

The fault is declared present after:
– Engine start.
– A road test.
– Output test “IMV/Flow actuator” on SUZUKI scan tool.

• If the fault is present:

– It is not possible to start the engine.
– Engine stops if already started,
– If 3.DEF is present, the Injection warning light (gravity 1 warning light) is lit.
– If one of the other faults is present, the Red stop warning light (gravity 2 warning light) is lit.

• Use service wire for all operations on the ECM connectors.

Wiring Diagram
For wiring circuit and connector number, refer to “A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A”.

Ω at 20 °C, 68 °F, replace the boost pressure control solenoid valve.

connector

• Between “C90-2” wire of boost pressure control solenoid valve connector and “E33-6” wire of main relay

mounting connector

If the fault is still present, check that the ECM output stage is working correctly.With the boost pressure control
solenoid valve connected:
• Or using a voltmeter:

– Connect the negative terminal of the voltmeter to “C90-1” wire of the solenoid valve connector and the

positive terminal to “C90-2” wire.

– Clear any solenoid valve faults and perform output test “Boost pressure valve” on SUZUKI scan tool.

The voltmeter should display five cycles of two successive voltages: ~ 2.5 V (opening cyclic ratio of 20%)
then ~ 8.75 V (opening cyclic ratio of 70%).

• Or using an oscilloscope (at 5 V range/division and 1 ms/div time base):

– Connect the negative terminal of the oscilloscope to “C90-1” wire of the solenoid valve connector and the

positive terminal to “C90-2” wire of the solenoid valve connector.

– Clear any solenoid valve faults and perform output test “Boost pressure valve” on SUZUKI scan tool.

The oscilloscope should display a square wave signal with an amplitude of 12.5 V (equal to the battery
voltage) at a frequency of 140 Hz (with an opening cyclic ratio increasing successively from ~ 20 to ~ 70%).

– If the measurement is correct, replace the solenoid valve.
– If the measurement does not show any control or continuous voltage, substitute a known-good ECM and

recheck.

1A-28 Engine General Information and Diagnosis:

Detecting Condition

Troubleshooting for CC.1: Short circuit to +12 V

Troubleshooting for CC.0: Short circuit to vehicle body ground and CO: Open circuit

Displaying on SUZUKI scan tool

Detecting condition

CC.1

Short circuit to +12 V

CC.0

Short circuit to vehicle body ground

Open circuit

1.DEF

Internal electronic fault

2.DEF

Measured pressure too low

3.DEF

Measured pressure too high

4.DEF

Insufficient pressure

5.DEF

Pressure < minimum

6.DEF

Pressure > maximum

7.DEF

Extensive pump command

Check the fuel flow actuator connector.
Check the ECM connections.
Check the low pressure circuit and that the correct fuel is being used using fault finding
• Tests Test 2 referring to “Test 2: Low pressure circuit check”.

Repair if necessary.

Measure the resistance of the fuel flow actuator between “C83-1” and “C83-2” terminals.
If the resistance is not 2.9 – 3.1

Ω at 20 °C, 68 °F, replace the fuel flow actuator.

Check the continuity and insulation from the +12 V feed of the following connection:
• Between “C83-2” wire of the fuel flow actuator connector and “C86-7” terminal of ECM connector
Check the fuel pressure sensor using the interpretation of “DTC P0190: Fuel Rail Pressure Sensor Circuit
Malfunction”.
If the fault is still present replace the fuel flow actuator.

Repair if necessary.

Measure the resistance of the fuel flow actuator between “C83-1” and “C83-2” terminals.
If the resistance is not 2.9 – 3.1

Ω at 20 °C, 68 °F, replace the fuel flow actuator.

Check the continuity, and insulation from vehicle body ground of the following connection:
• Between “C83-2” wire of fuel flow actuator connector and “C86-7” terminal of ECM connector
With ignition switch ON, check for +12 V on “C83-1” of the fuel flow actuator.If there is not +12 V on “C83-1”,
check the continuity and absence of interference resistance of the following connection:
• Between “C83-1” wire of fuel flow actuator connector and “E33-6” wire of main relay mounting connector
Repair if necessary.
Check the fuel pressure sensor using the interpretation of “DTC P0190: Fuel Rail Pressure Sensor Circuit
Malfunction”.
If the fault is still present replace the fuel flow actuator.

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