Mitsubishi Outlander XL. Manual - part 502

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

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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  a
specified time 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

 

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?

AUTOMATIC TRANSAXLE MECHANICAL

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AUTOMATIC TRANSAXLE DIAGNOSIS

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

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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

impossible for a specified time 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.

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.

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AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

NO:

 Replace the TCM.

DTC U0141: ETACS-ECU Time Out

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DESCRIPTIONS OF MONITOR METHODS

｠

Open  circuit  or  short  circuit  occurs  in  the  CAN
communication line (CAN_H, CAN_L).

｠

Reception from ETACS-ECU becomes impossible
for a specified time 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.

STEP 3. Check the ETACS-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.

AUTOMATIC TRANSAXLE MECHANICAL

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AUTOMATIC TRANSAXLE DIAGNOSIS

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: The vehicle does not run at any range.

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TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CONDITION:)

｠

Malfunction of the engine

｠

Insufficient transmission fluid level

｠

Poor adjustment of transaxle control cable

｠

Malfunction of the torque converter

｠

Malfunction of the valve body assembly

｠

A/T failure: Hydraulic system (valve body assembly,
oil  pump),  driving  force  transmission  system
(parking mechanism, clutch/brake, gears)

DIAGNOSIS

STEP 1. Check the engine performance.

Q:Is the check result normal?

YES:

 Go to Step 2.

NO:

 Repair the failure, and perform adjustment.

STEP 2. Check the transaxle control cable.
Check  the  installation  status  of  transaxle  control  cable  and
transmission range switch.

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Adjust the installation status of transaxle control

cable and transmission range switch. P.23A-157.

STEP 3. Check the transmission fluid.
Check  the  transmission  fluid  for  seizure,  fouling,  and  foreign
material.

Q:Is the check result normal?

YES:

 Go to Step 4.

NO:

 Go to Step 7.

STEP 4. Check the transmission fluid level.
Check if the transmission fluid level is adequate.

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Check and repair the leakage point of the

transmission fluid, add the transmission fluid, and then
go to Step 5.

STEP 5. Perform a hydraulic test.
Refer to P.23A-21.

Q:Is the check result normal?

YES:

 Go to Step 6.

NO:

 Go to Step 7.

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AUTOMATIC TRANSAXLE DIAGNOSIS