SSANGYONG KORANDO 1997 Service Repair Manual

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
1Perform 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 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?
StepAction Value(s) Yes No
2
3
5
6 4
- Go to Step 8 -
7
- Go to Step 8 -
8
- Go to Step 9 Go to Step 2
9
- Go to Step 2Go 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 tableSystem 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

AUTOMATIC TRANSMISSION 5A-79
SSANGYONG MY2002
DTC P1710 Air Conditioning Switch Circuit Malfunction
1Perform a TCM Diagnostic 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 P1710.
1. Turn the ignition OFF.
2. Disconnect the air conditioning compressor relay
connector.
3. Turn the ignition ON.
4. Select Air Conditioning Compressor Switch on
scan tool Data List.
Is the value frequently changing?
1. Turn the ignition OFF.
2. Disconnect the TCM connector A.
3. Check the air conditioning compressor signal
circuit for an intermittent open or short and repair
as necessary.
Is a repair necessary?
1. Jumper the air conditioning compressor relay
connector terminal 30 and 87.
2. Turn the air conditioning switch ON.
Is the air conditioning compressor switch value
frequently changing?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Check the air conditioning compressor signal
circuit for an intermittent open and repair as
necessary.
Is a repair complete?
Check the fuse Ef3 for a malfunctioning and replace
as necessary?
Is a repair necessary
Check for a poor connection at the air conditioning
compressor relay and TCM connector and repair the
malfunctioning terminals as necessary.
Is a repair necessary?
Replace the air conditioning compressor relay.
Is the action complete?
1. Turn the ignition OFF.
2. Replace the TCM.
Is the action complete?
StepAction Value(s) Yes No
2
3
4
5
- Go to Step 2Go to “TCM
Diagnostic
System Check”
6
7
8
9
10
- Go to Step 3 Go to
“Diagnostic
Aids”
- Go to Step 4 Go to Step 5
- Go to Step 11 Go to Step 8
- Go to Step 6 Go to Step 7
- Go to Step 11 -
- Go to Step 11 Go to Step 9
- Go to Step 11 Go to Step 10
- Go to Step 11 -
- Go to Step 11 -

5A-80 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DTC P1710 Air Conditioning Switch Circuit Malfunction (Cont’d)
111. 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?
StepAction Value(s) Yes No
12
- Go to Step 12 Go to Step 2
-Go to
applicable
DTC tableSystem OK,
Check
Complete

AUTOMATIC TRANSMISSION 5A-81
SSANGYONG MY2002
BLANK

5A-82 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Circuit Description
The Kickdown Switch is used to signal the TCM that
the driver requires kickdown indicating the driver
pressed the accelerator to the floor. When this switch
is used in high range non-winter mode driving, the
POWER light comes ON.
The DTC sets when the kickdown switch has an inter-
mittent connection or is stuck ON. Kickdown Switch is
closed when other signals indicate otherwise, i.e. the
accelerator pedal is released and the engine is running.
Or the switch is cycling open/closed more rapidly than
the normal operation allows.
Conditions for Setting the DTC
DTCs P1703, P1713 and P1719 are not set.
Kickdown Switch is closed when other signals indi-
cate otherwise, i.e. the accelerator pedal is released
and the engine is running.
The switch is cycling open/closed more rapidly than
normal operation allows : 10 state changes in less
than 30 milliseconds.
Action Taken When the DTC Sets
Kickdown Switch feature is disabled while the fault
exists.
Conditions for Clearing the DTC
The DTC will clear when the malfunction has not
occurred for 30 seconds.
DIAGNOSTIC TROUBLE CODE (DTC) P1712
KICKDOWN SWITCH CIRCUIT MALFUNCTION
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
Typical causes would be an short circuit within the
switch, or a short circuit to ground in the wiring to
the switch.
Inspect the wiring for poor electrical connections
at the TCM and at the Kickdown Switch connector.
Look for possible bent, backed out, deformed or
damagednterminals. Check for weak terminal
tension as well. Also check for chafed wires that
could short to bare metal or other wiring. Inspect
for broken wire 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 kickdown signal circuit is
malfunctioning.
7. Checks if the kickdown ground circuit is
malfunctioning.
8. Check resistance between Kickdown Switch termi-
nal 4 and 2.
12. Check connections of other connectors.
KAA5A3JA

AUTOMATIC TRANSMISSION 5A-83
SSANGYONG MY2002
DTC P1712 Kickdown Switch Circult Malfunction
1Perform a Transmission Control Module (TCM)
Diagnostic System Check.
Is the check performed?
1. Install the scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Select the Kickdown Switch on the scan tool.
Is the Kickdown Switch value frequently changed ON/
OFF or continuously ON?
Push the accelerator pedal fully to the Kickdown
Switch.
Is the Kickdown Switch value frequently changed
OFF/ON?
1. Turn the ignition OFF.
2. Disconnect the Kickdown Switch connector. Refer
to the Kickdown Switch in this section.
3. Turn the ignition ON, with the engine OFF.
Is the Kickdown Switch value frequently changed ON/
OFF or continuously ON?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Check the Kickdown Switch signal circuit from
Kickdown Switch connector terminal 4 to TCM
terminal B3 for a short to ground.
Is a short to ground found?
Repair the short to ground or an open in the Kickdown
Switch signal circuit.
Is the action complete?
1. Turn the ignition OFF.
2. Disconnect the Kickdown Switch connector. Refer
to the Kickdown Switch in this section.
3. With a test light connected to B+, probe the
Kickdown Switch ground circuit, terminal 2.
Does the test light illuminate?
Check the resistance between Kickdown Switch
terminal 2 and 4 when pushing the switch and not
pushing.
Is the resistance within the specified value?
Replace the Kickdown Switch.
Is the action complete?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Check the Kickdown Switch signal circuit from
Kickdown Switch connector terminal 4 to TCM
terminal B3 for an open.
Is an open founded?
Repair the open in the Kickdown Switch ground circuit.
Is the action complete?
StepAction Value(s) Yes No
2
5
9
11 10
- Go to Step 4 Go to Step 3
3
4
- Go to Step 6 Go to Step 14
6
7
8
- Go to Step 5 Go to Step 8
- Go to Step 7 Go to
“Diagnostic
Aids”
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 15 -
- Go to Step 10 Go to Step 11
Push: less
than 5 Ω
No push:
Open Loop Go to
“Diagnostic
Aids” Go to Step 9
- Go to Step 15 -
- Go to Step 6 Go to Step 12
- Go to Step 15 -

5A-84 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DTC P1712 Kickdown Switch Circult Malfunction (Cont'd)
Check for a poor connection at the Kickdown Switch
connector and TCM connector and repair the
malfunctioning terminals as necessary.
Is a repair necessary?
Check the resistance between kickdown switch
terminal 2 and 4 when pushing the switch.
Is the resistance within the specified value and steady?
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?
StepAction Value(s) Yes No
12
13
- Go to Step 15 -
15
- Go to Step 15 Go to Step 13
14
16
-Go to
applicable
DTC tableSystem OK,
Check
Complete
Go to Step 14 Go to Step 9 less than 5 Ω
- Go to Step 16 Go to Step 2

AUTOMATIC TRANSMISSION 5A-85
SSANGYONG MY2002
BLANK