Mitsubishi Outlander GS45X. Manual — part 1707

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-133

DIAGNOSIS

STEP 1. Check the CAN communication system
malfunction.

• Check that the CAN system-related DTC code other than

U0001 is set.

• Check that the CAN-related DTC is set with other relevant

modules.

Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair or replace the failure section.

STEP 2. Check the CAN communication lines.
[C-38 TCM connector (vehicle side, disconnected)]
Between C-38 terminal No. 10, 11 and the CAN communication
lines of other ECU: Continuity exists.
When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.
Also, check for a short circuit between the twisted pair cables.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair or replace the failure section.

STEP 3. Check the relevant ECUs and the TCM connector
pin terminal, and the connection status.
Q: Is the check result normal?

YES : Repair or replace the failure section.
NO : Replace the TCM.

DTC U0100: ECM Time-out

.

DESCRIPTIONS OF MONITOR METHODS

• Open circuit or short circuit occurs in the CAN

communication line (CAN_H, CAN_L).

• Reception from ECM becomes impossible for 0.5

seconds or more.

.

MONITOR EXECUTION

• Continuous

.

MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• P0712: Malfunction of the transmission fluid tem-

perature sensor (Short circuit)

• P0715: Malfunction of the Input shaft speed sen-

sor system

• P0731: Malfunction of the 1st gear incorrect ratio

• P0732: Malfunction of the 2nd gear incorrect ratio

• P0733: Malfunction of the 3rd gear incorrect ratio

• P0734: Malfunction of the 4th gear incorrect ratio

• P0735: Malfunction of the 5th gear incorrect ratio

• P0729: Malfunction of the 6th gear incorrect ratio

• P0741: Malfunction of the Malfunction of the

Torque converter clutch system (Stuck off)

• P0742: Malfunction of the Torque converter

clutch system (Stuck on)

• P0846: Malfunction of the 2-6 brake pressure

switch system

• P0876: Malfunction of the High clutch pressure

switch system

• P0988: Malfunction of the Low-reverse brake

pressure switch system

• P1705: Malfunction of the Throttle position sen-

sor information (engine)

• P1706: Malfunction of the Accelerator pedal posi-

tion information

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-134

Sensor (The sensor below is determined to be

normal)

• Transmission fluid temperature sensor

• Input shaft speed sensor

.

LOGIC FLOW CHARTS (Monitor Sequence)

.

DTC SET CONDITIONS

Check Conditions

• TCM is started: more than 1.05 seconds.

Judgement Criteria

• CAN communication with ECM: fail.

.

OBD-II DRIVE CYCLE PATTERN

With the ignition switch ON, maintain the status for
10 seconds or more.

.

TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CODE TO BE
SET ARE:)

• Damaged harness or connector

• Malfunction of the CAN communication

• Malfunction of the ECM

• Malfunction of the TCM

Good

END

No

No

TCM is started

Timer start

Timer > 1.05 secs.

Malfunction

No

AC802918

START

Yes

Yes

Yes

Yes

Continuous failure for 0.1 sec

CAN communication with ECM is fail

No

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-135

DIAGNOSIS

STEP 1. Check the CAN communication system
malfunction.

• Check that the CAN system-related DTC code other than

U0100 is set.

• Check if the CAN-related DTC is set with ECM.

• Check if the failure related to the engine occurs.

Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair or replace the failure section.

STEP 2. Check the CAN communication lines.
[C-38 TCM connector (vehicle side, disconnected)]
Between C-38 terminal No. 10, 11 and the CAN communication
lines of ECM: Continuity exists.
When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.
Also, check for a short circuit between the twisted pair cables.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair or replace the failure section.

STEP 3. Check ECM, the TCM connector pin terminal, and
the connection status.
Q: Is the check result normal?

YES : Repair or replace the failure section.
NO : Replace the TCM.

DTC U0121: ABS/ASC-ECU Time Out

.

DESCRIPTIONS OF MONITOR METHODS

• Open circuit or short circuit occurs in the CAN

communication line (CAN_H, CAN_L).

• Reception from ABS/ASC-ECU becomes impos-

sible for 0.5 seconds or more.

.

TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CODE TO BE
SET ARE:)

• Damaged harness or connector

• Malfunction of the CAN communication

• Malfunction of the ABS/ASC-ECU

• Malfunction of the TCM

DIAGNOSIS

STEP 1. Check the CAN communication system
malfunction.

• Check that the CAN system-related DTC code other than

U0121 is set.

• Check if the CAN-related DTC is set with ABS/ASC-ECU.

• Check if the failure related to the ABS/ASC occurs.

Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair or replace the failure section.

AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>

TSB Revision

AUTOMATIC TRANSAXLE

23C-136

STEP 2. Check the CAN communication lines.
[C-38 TCM connector (vehicle side, disconnected)]
Between C-38 terminal No. 10, 11 and the CAN communication
lines of ABS/ASC-ECU: Continuity exists.
When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.
Also, check for a short circuit between the twisted pair cables.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair or replace the failure section.

STEP 3. Check the ABS/ASC-ECU, the TCM connector pin
terminal, and the connection status.
Q: Is the check result normal?

YES : Repair or replace the failure section.
NO : Replace the TCM.

DTC U0141: ETACS-ECU Time Out

.

DESCRIPTIONS OF MONITOR METHODS

• Open circuit or short circuit occurs in the CAN

communication line (CAN_H, CAN_L).

• Reception from ETACS-ECU becomes impossi-

ble for 0.5 seconds or more.

.

TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CODE TO BE
SET ARE:)

• Damaged harness or connector

• Malfunction of the CAN communication

• Malfunction of the ETACS-ECU

• Malfunction of the TCM

DIAGNOSIS

STEP 1. Check the CAN communication system
malfunction.

• Check that the CAN system-related DTC code other than

U0141 is set.

• Check if the CAN-related DTC is set with ETACS-ECU.

• Check if the failure related to the ETACS occurs.

Q: Is the check result normal?

YES : Go to Step 2.
NO : Repair or replace the failure section.

STEP 2. Check the CAN communication lines.
[C-38 TCM connector (vehicle side, disconnected)]
Between C-38 terminal No. 10, 11 and the CAN communication
lines of ETACS-ECU: Continuity exists.
When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.
Also, check for a short circuit between the twisted pair cables.
Q: Is the check result normal?

YES : Go to Step 3.
NO : Repair or replace the failure section.