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

M12301000436USA0000010000

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

23A-123

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

M12301000437USA0000010000

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.

23A-124

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

NO:

Replace the TCM.

DTC U0141: ETACS-ECU Time Out

M12301000438USA0000010000

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

23A-125

AUTOMATIC TRANSAXLE DIAGNOSIS

SYMPTOM PROCEDURES

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

M12301000439USA0000010000

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.

23A-126

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS