SsangYong Korando II (1996-2006 year). Service manual - part 293

AUTOMATIC TRANSMISSION 5A-75

SSANGYONG MY2002

DTC P1708 TCM Supply Voltage Low

Perform a Transmission Control Module (TCM) Diag-
nostic System Check.
Is the check performed?
1. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Record and then clear DTCs.
4. Operate the vehicle within the conditions for

setting this DTC as specified in the text.

Does the scan tool display P1708?
1. Isolate the driven wheels from the ground and

apply the hand brake.

2. Start the engine and allow it to idle.
3. Move the gear lever to Drive.
4. Select the Ignition Voltage on the scan tool Data

List.

Is the Ignition Voltage less than the specified value?
While running the engine at the specified value, mea-
sure the battery voltage at the battery using a DVM.
Is the battery voltage greater than the specified value?
Check the fuse F23 for a malfunction and replace as
necessary?
Is a repair necessary?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Start the engine and raise the engine speed to

specified value.

4. While running the engine at the specified value,

measure the ignition voltage at the ignition feed
circuit terminal B30 using a DVM.

Is the ignition voltage greater than the specified value?
Check for a malfunctioning connection at the TCM
harness terminals and repair as necessary.
Is a repair necessary?
Repair the poor connection (high resistance) at the
ignition feed circuit.
Is the action complete?
1. Turn the ignition OFF.
2. Replace the TCM.
Is the action complete?
1. Using the scan tool, clear the DTCs.
2. Road test the vehicle within the conditions for

setting this DTC as specified in the text.

Does the scan tool indicate that this diagnostic has
run and passed?
Check if any DTCs are set.
Are there any DTCs displayed or previously recorded
at Step 2 that have not been diagnosed?

Step

Action

Value(s)

Yes

Go to Step 10

Go to Step 9

Go to Step 10

Go to Step 11

Go to Step 2

Go to “TCM

Diagnostic

System Check”

10 V

Go to Step 4

Go to Step 10

Go to Step 3

Go to

“Diagnostic

Aids”

Go to

applicable

DTC table

System OK,

Check

Complete

Go to Step 10

Go to Step 6

Idle in Drive

10 V

Go to Step 7

Go to Step 8

Idle in Drive

12 V

Go to Step 5

Go to Section

1E, Engine

Electrical

5A-76 AUTOMATIC TRANSMISSION

SSANGYONG MY2002

Circuit Description

The battery voltage monitoring input is connected to
the positive side of the battery. This signal is taken
from the main supply to the TCM.

If the battery voltage is greater than 16.5 V, DTC P1709
will be set and the transmission will adopt limp home
mode and all solenoids are turned OFF.

Conditions for Setting the DTC

•

The indicated supply voltage is greater than 16.5 V.

•

The malfunction triggers immediately after this
condition exists.

Action Taken When the DTC Sets

•

All solenoids are turned OFF while the high battery
voltage condition is detected.

•

The transmission goes into Limp Home Mode (LHM).

Conditions for Clearing the DTC

•

The DTC will clear when the malfunction has not
occurred for 30 seconds.

•

A history DTC will clear after 40 TCM power-up
cycles with a warm transmission (>50 °C) and
without a fault.

•

History DTCs can be cleared by using a scan tool.

DIAGNOSTIC TROUBLE CODE (DTC) P1709

TCM SUPPLY VOLTAGE HIGH

Diagnostic Aids

•

The voltage measured by the TCM corresponding
to the battery supply voltage has been outside the
range of the maximum operating voltage of 16.5 V.

•

Look for possible bent, backed out, deformed or
damaged terminals. Check for weak terminal tension
as well. Also, check for chafed wires that could short
to bare metal or other wiring. Inspect for broken
wires inside the insulation.

•

If diagnosing for a possible intermittent short or
open condition, move or massage the wiring harness
while observing test equipment for a change.

Test Description

The number(s) below refer to the step number(s) on
the Diagnostic Table.

4. Checks if the generator is malfunctioning under

load conditions.

5. Check connection of other connectors.

KAA5A5KA

AUTOMATIC TRANSMISSION 5A-77

SSANGYONG MY2002

DTC P1709 TCM Supply Voltage High

setting this DTC as specified in the text.

Does the scan tool display P1709?
1. Start the engine and raise the engine speed to the

specified value.

2. Select the Ignition Voltage on the scan tool Data

List.

Is the Ignition Voltage greater than the specified value?
While running the engine at the specified value, mea-
sure the battery voltage at the battery using a DVM.
Is the battery voltage less than the specified value?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Start the engine and raise the engine speed to the

specified vale.

4. While running the engine at the specified value,

measure the ignition voltage at the ignition feed
circuit terminal B30 with respect to the ground
terminal B14.

Is the ignition voltage greater than the specified value?
Check the wiring harness from the fuse F23 to TCM
terminal B30 and from the ground G301 to TCM
terminal B14 for damage.
1. Turn the ignition OFF.
2. Replace the TCM.
Is the action complete?
1. Using the scan tool, clear the DTCs.
2. Road test the vehicle within the conditions for

setting this DTC as specified in the text.

Does the scan tool indicate that this diagnostic has
run and passed?
Check if any DTCs are set.
Are there any DTCs displayed or previously recorded
at Step 2 that have not been diagnosed?

Step

Action

Value(s)

Yes

Go to Step 8

Go to Step 9

Go to Step 2

Go to “TCM

Diagnostic

System Check”

Go to Step 3

Go to

“Diagnostic

Aids”

1500 rpm

16.5 V

Go to Step 6

Go to Step 7

1500 rpm

16.5 V

Go to Step 4

Go to Step 8

2000 rpm

16.5 V

Go to Step 5

Go to Section

1E, Engine

Electrical

Go to

applicable

DTC table

System OK,

Check

Complete

5A-78 AUTOMATIC TRANSMISSION

SSANGYONG MY2002

Circuit Description

The Air Conditioning Switch circuit indicates the state
of the air conditioning compressor clutch (on or off).
This signal is available to the TCM only on vehicles
fitted with air conditioning.

The DTC 1710 sets when an intermittent connection in
the air conditioning switch circuit has been detected.
The switch input is rapidly changing states and the
switching frequency is greater than 8.3 Hz.

Conditions for Setting the DTC

•

The mode switching frequency is greater than 8.3
Hz.

•

The above condition must be continuously present
for 4 state changes.

Action Taken When the DTC Sets

•

The TCM does not compensate for torque variation
due to air conditioning compressor clutch activation.

DIAGNOSTIC TROUBLE CODE (DTC) P1710

AIR CONDITIONING SWITCH CIRCUIT MALFUNCTION

Conditions for Clearing the DTC

•

The DTC will clear after 3 seconds without the fault.

•

A history DTC will clear after 40 TCM power-up
cycles with a warm transmission (>50 °C) and
without a fault.

•

History DTCs can be cleared by using a scan tool.

Diagnostic Aids

•

This fault is caused by too many changes in the
mode input signal over a period of time.

•

Typical causes would be an intermittent connection
in the switch or wiring or an intermittent short to
ground in the wiring.

KAA5A5T0

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