Mitsubishi Outlander XL. Manual - part 501

DIAGNOSIS

STEP 1. Check the ABS/ASC-ECU.
Check if a failure related to ABS/ASC-ECU occurs.

Q:Is the check result satisfactory?

YES:

 Go to Step 2.

NO:

 Repair or replace the failure section.

STEP 2. Check the ABS/ASC-ECU connector pin terminal
and the connection status.

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Repair or replace the failure section.

STEP 3. Erase the DTC code, and drive the vehicle for a
while.
Check that the normal code is displayed.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Return to START.

DTC P1794: Ground Return

M12301000434USA0000010000

DESCRIPTIONS OF MONITOR METHODS

｠

With  the  ignition  switch  ON,  an  open  circuit  is
detected for 0.2 seconds.

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)

｠

Not applicable

Sensor (The sensor below is determined to be
normal)

｠

Not applicable

AUTOMATIC TRANSAXLE MECHANICAL

23A-119

AUTOMATIC TRANSAXLE DIAGNOSIS

LOGIC FLOW CHARTS (Monitor Sequence)

ZC604087

Good

Malfunction

END

START

Continuous failure  
      for 5 secs.

No

No

Yes

Yes

Yes

Ground voltage level

 ＜ 

threshold level

Ignition switch :ON

(Battery positive voltage 

≧ 

2V)

No

0000

DTC SET CONDITIONS

Check Conditions

｠

Voltage of battery: 2 volts or more.

Judgement Criteria

｠

Ground voltage level: less than threshold level. (5
seconds)

OBD-II DRIVE CYCLE PATTERN
Start the engine, and keep the vehicle stopped in "P"
range for 5 seconds.

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

｠

Breakage of ground return wire

｠

Damaged harness or connector

｠

Malfunction of the TCM

 

DIAGNOSIS

23A-120

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

STEP 1. Check between the TCM connector and body
ground.
Check for continuity between C-38 TCM connector terminal No.
16 and body ground.

｠

Between C-38 terminal No. 16 and body ground: Continuity
exists.

Check for continuity between the C-38 TCM connector terminal
No. 16 and the C-38 TCM connector terminal No. 13 and No. 26.

｠

Between C-38 terminal No. 16 and C-38 terminal No. 13 and
No. 26: Continuity exists.

Q:Is the check result normal?

YES:

 Go to Step6.

NO:

 Go to Step2.

STEP 2. Check the wiring harness between TCM and the A/
T control solenoid valve assembly.
Check for continuity between C-38 TCM connector and B-111
A/T control solenoid valve assembly connector.

｠

Between  C-38  terminal  No.  16  and  B-111  terminal  No.  13:
Continuity exists.

When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Repair or replace the failure section.

STEP 3. Check the wiring harness between the A/T control
solenoid valve assembly and body ground.
Check for continuity between B-111 A/T control solenoid valve
assembly and body ground.

｠

Between B-111 terminal No. 13 and body ground: Continuity
exists.

When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Go to Step 4.

STEP 4. Check the wiring harness between the A/T control
solenoid valve assembly terminals and ground terminals.
Check for continuity between B-111 A/T control solenoid valve
assembly terminals and ground terminals.

｠

Between B-111 terminal No. 13 and ground: Continuity exists.

When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Repair or replace the failure section.

AUTOMATIC TRANSAXLE MECHANICAL

23A-121

AUTOMATIC TRANSAXLE DIAGNOSIS

STEP 5. Check the TCM, A/T control solenoid valve
assembly connector pin terminals, and the connection
status.

Q:Is the check result normal?

YES:

 Replace the TCM.

NO:

 Repair or replace the failure section.

STEP 6. Check the TCM, A/T control solenoid valve
assembly connector pin terminals, and the connection
status.

Q:Is the check result normal?

YES:

 Go to Step 7.

NO:

 Repair or replace the failure section.

STEP 7. Erase the DTC code, and drive the vehicle for a
while.
Check that the normal code is displayed.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Return to START.

DTC U0001: Can Bus Off

M12301000435USA0000010000

 

DESCRIPTIONS OF MONITOR METHODS

｠

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

｠

The  communication  becomes  impossible  with  all
the control modules for a specified time.

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

｠

Malfunction of the CAN circuit

｠

Malfunction of the TCM

｠

Damaged harness or connector

｠

Malfunction of the CAN system module

 

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)]

23A-122

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS