1997 SSANGYONG KORANDO ignition

5A-88 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
System Description
The Electrically Erasable Programmable Read-Only
Memory (EEPROM) is a permanent memory chip that
is physically soldered within the Transmission Control
Module (TCM). The EEPROM contains the program and
the calibration information required for transmission
and transmission diagnostics operation.
The DTC P1714 sets when the vehicle ID stored in EE-
PROM is out of range when checked on initialization.
The EEPROM Vehicle identification Number (VIN) value
does not lie within the range 0 - 13.
Conditions for Setting the DTC
DTC P1720 is not set.
The vehicle type is not recognized. The EEPROM
Vehicle Identification Number (VIN) value does not
lie within the range 0 - 13. The malfunction is
triggered immediately after this condition exists.
DIAGNOSTIC TROUBLE CODE (DTC) P1714
EEPROM VEHICLE CODE ERROR
Action Taken When the DTC Sets
If CAN is detected, OBD N32D VIN is selected. Or
If CAN is not detected, P29 STi VIN is selected.
Shift quality may by degraded.
Conditions for Clearing the DTC
This DTC can only be cleared by reprogramming
the EEPROM with the correct vehicle code and than
cycling power to the TCM. This is a factor
procedure.
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.
Test Description
The number(s) below refer to the step number(s) on
the Diagnostic Table.
3. Perform the vehicle coding.
DTC P1714 EEPROM Vehicle Code Error
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. 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 P1714?
1. Select the required VIN on TCM Coding of scan tool.
2. Perform the vehicle coding.
3. Turn the ignition OFF.
4. Turn the ignition ON, with the engine OFF.
Does the scan tool display P1714?
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) No
2
3
- Go to Step 5 - 4
- Go to Step 6 Go to Step 2 5
6
- Go to Step 2Go to “TCM
Diagnostic
System Check”
-Go to
applicable
DTC tableSystem OK,
Check
Complete
- Go to Step 3 Go to Step 6
- Go to Step 4 Go to Step 5

AUTOMATIC TRANSMISSION 5A-89
SSANGYONG MY2002
Circuit Description
The VPS is used to regulate the clutch and band pres-
sures during a shift. The TCM compares TP voltage,
engine rpm and other inputs to determine the pressure
appropriate for a given shift. The TCM will regulate
pressure by applying a varying amperage to the
Variable Pressure Solenoid (VPS) valve. The applied
amperage can vary from 0 to 1.275 amps. The TCM
then monitors the amperage at the return line.
This VPS offsets calibrate the accuracy between actual
and expected VPS current.
The DTC P1715 sets when the VPS offset value stored
in EEPROM is out of range when checked on initializa-
tion. The VPS offset is greater than 120 mA from nomi-
nal.
DIAGNOSTIC TROUBLE CODE (DTC) P1715
VPS OFFSET ERROR
Conditions for Setting the DTC
DTC P1720 is not set.
The VPS offset is greater than 120 mA from nominal.
The malfunction is triggered immediately after this
condition exists.
Action Taken When the DTC Sets
Default values are used which are typical of the
calibrated values.
Shift quality may be degraded.
Conditions for Clearing the DTC
This DTC can only be cleared by recalibrating the
VPS and then cycling power to the TCM. This is a
factory procedure.
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.
DTC P1715 VPS Offset Error
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 P1715?
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
- Go to Step 5 Go to Step 2 4
5
- Go to Step 2Go to “TCM
Diagnostic
System Check”
-Go to
applicable
DTC tableSystem OK,
Check
Complete
- Go to Step 3 Go to Step 5
- Go to Step 4 -

AUTOMATIC TRANSMISSION 5A-91
SSANGYONG MY2002
DTC P1716 Throttle Not Learnt Error
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 P1716?
Check if there are any DTCs related to the throttle
position sensor.
Are any DTCs related to throttle position sensor found?
Fulfill the Throttle Clearing and Throttle Position
Calibration.
Is the repair 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?
StepAction Value(s) Yes No
2
3
- Go to Step 6 Go to Step 5 4
- Go to Step 7 Go to Step 2 6
7
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 3 Go to
“Diagnostic
Aids”
-Go to
applicable
DTC table Go to Step 4
-Go to
applicable
DTC tableSystem OK,
Check
Complete
- Go to Step 6 - 5

5A-92 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DTC P1717 RAM Error
Circuit Description
A normal function of the Transmission Control Module
(TCM) programming is to perform an internal check
that verifies the integrity of the RAM memory
allocations.
The DTC P1717 sets when the Random Access Memory
(RAM) is not operating correctly when checked on
initialization. An area of RAM has failed a read/ write
test.
Conditions for Setting the DTC
An area of RAM has failed a read/ write test.
Immediately after the above condition occurs.
Action Taken When the DTC Sets
Adopt Limp Home Mode (LHM)
Outputs are disabled.
DIAGNOSTIC TROUBLE CODE (DTC) P1717
RAM ERROR
The transmission adopts the third gear LHM
strategy of operation, independent of the vehicle
speed. The operation of TCM under this condition
is difficult to predict. Its operation may be erratic.
Conditions for Clearing the DTC
The DTC will clear if the malfunction is not present
after cycling the ignition.
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
When DTC P1717 sets, the replacement of TCM is
recommended.
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.
Does the scan tool display P1717?
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
- Go to Step 4 -
4
- Go to Step 5 Go to Step 2
5
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 3 Go to
“Diagnostic
Aids”
-Go to
applicable
DTC tableSystem OK,
Check
Complete

AUTOMATIC TRANSMISSION 5A-93
SSANGYONG MY2002
DTC P1718 ROM Error
Circuit Description
A normal function of the Transmission Control Module
(TCM) programming is to perform an internal check
that verifies the integrity of the ROM memory
allocations. This function is called a checksum.
The DTC P1718 sets when the Read Only Memory
(ROM), program memory, is corrupted when checked
on initialization. The calculated checksum disagrees
with the stored checksum.
Conditions for Setting the DTC
TCM has been powered ON for greater than 7 sec-
onds.
The calculated checksum disagrees with the stored
checksum. The malfunction is triggered immediately
after this condition exists.
DIAGNOSTIC TROUBLE CODE (DTC) P1718
ROM ERROR
Action Taken When the DTC Sets
Adopt Limp Home Mode (LHM)
The transmission adopts the third gear LHM strategy
of operation, independent of the vehicle speed. The
operation of TCM under this condition cannot be
predicted. Its operation may be erratic.
Conditions for Clearing the DTC
The DTC will clear if the malfunction is not present
after cycling the ignition.
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
When DTC P1718 sets, the replacement of TCM is
recommended.
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.
Does the scan tool display P1718?
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
- Go to Step 4 -
4
- Go to Step 5 Go to Step 2
5
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 3 Go to
“Diagnostic
Aids”
-Go to
applicable
DTC tableSystem OK,
Check
Complete

AUTOMATIC TRANSMISSION 5A-95
SSANGYONG MY2002
DTC P1719 CAN Bus Error
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 P1719?
1. Turn the ignition OFF.
2. Disconnect the TCM connector B.
3. Disconnect the Engine Control Module (ECM)
connector.
4. Check the wiring harness from ECM connector
terminal 38 to TCM connector terminal B23 for an
open or a short.
Is a problem found?
Repair the malfunctioning wiring harness.
Is a repair complete?
Check the wiring harness from ECM connector termi-
nal 37 to TCM connector terminal B24 for an open or a
short.
Is a problem found?
Check for a poor connection at the ECM connector or
TCM connector and repair the malfunctioning terminals
as necessary.
Is a repair necessary?
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?
1. Turn the ignition OFF.
2. Replace the TCM with the original.
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
- Go to Step 8 - 6 4
- Go to Step 10 Go to Step 9 7
8
- Go to Step 11 Go to Step 2 9
10
- Go to Step 2Go to “TCM
Diagnostic
System Check”
-
Go to Step 4 Go to Step 5
- Go to Step 3 Go to
“Diagnostic
Aids”
11
-Go to
applicable
DTC tableSystem OK,
Check
Complete
- Go to Step 4 Go to Step 6
-Go to
Section 1F,
Engine Control-
- Go to Step 10 Go to Step 7
-
Go to Step 10-

5A-96 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DTC P1720 EEPROM Error
System Description
The Electrically Erasable Programmable Read-Only
Memory (EEPROM) is a permanent memory chip that
is physically soldered within the Transmission Control
Module (TCM). The EEPROM contains the calibration
information required for transmission and transmission
diagnostics operation. When the EEPROM malfunc-
tions, DTC P1720 will set. The EEPROM memory is
corrupted and the calculated checksum disagrees with
the stored checksum or an EEPROM communication
failure has occurred when checked on initialization.
Conditions for Setting the DTC
The calculated checksum disagrees with the stored
checksum or an EEPROM communication failure has
occurred when checked on initialization.
Immediately after the above condition occurs.
DIAGNOSTIC TROUBLE CODE (DTC) P1720
EEPROM ERROR
Action Taken When the DTC Sets
If CAN is detected, OBD N32D VIN is selected. Or
If CAN is not detected, P29 STi VIN is selected.
Default values are used which are typical of
calibrated values.
Shift quality may be degraded.
Conditions for Clearing the DTC
The DTC will only clear if the malfunction is not pres-
ent after cycling the ignition.
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
When DTC 1720 is set, it is likely the TCM will need
replacing.
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 P1720?
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
- Go to Step 4 -
4
- Go to Step 5 Go to Step 2
5
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 3 Go to
“Diagnostic
Aids”
-Go to
applicable
DTC tableSystem OK,
Check
Complete

AUTOMATIC TRANSMISSION 5A-99
SSANGYONG MY2002
DTC P1721 Throttle Signal Error
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 P1721?
Check if there are any DTCs related to the throttle
position sensor on the ECM side.
Are any DTCs related to throttle position sensor found?
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
- Go to Step 5 - 4
- Go to Step 6 Go to Step 2 5
6
- Go to Step 2Go to “TCM
Diagnostic
System Check”
- Go to Step 3 Go to
“Diagnostic
Aids”
- Go to Section
1F, Engine
Controls Go to Step 4
-Go to
applicable
DTC tableSystem OK,
Check
Complete