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
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