Mitsubishi Lancer Evolution IX. Manual — part 613
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-135
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
STEP 3. Check the harness between combination
meter connector C-01 terminal No.9 and ignition
switch.
Check the power supply line for short or open circuit.
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
NO :
Repair the wiring harness.
STEP 4. Check the ACD mode indicator lamp
illumination.
(1) Disconnect the 4WD-ECU connector C-26, and
check the harness side.
(2) Turn the ignition switch to the ON position.
(3) Connect terminal No.40,51,52 to body earth.
OK: The indicator lamp illuminates.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 5.
AC310458
AS
Connector: C-211,
C-214 <RH drive vehicles>
C-214
C-211
C-214
Junction block (front view)
C-211
AC311015AO
Connector: C-01 <LH drive vehicles>
C-01
C-01
AC311037
C-01
AG
Connector: C-01 <RH drive vehicles>
C-01
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-136
STEP 5. Connectors check: C-01 combination
meter connector, C-26 4WD-ECU connector,
C-122 intermediate connector <LH drive
vehicles> or C-01 combination meter connector,
C-26 4WD-ECU connector, C-138 intermediate
connector <RH drive vehicles>.
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
AC311015AO
Connector: C-01 <LH drive vehicles>
C-01
C-01
AC311037
C-01
AG
Connector: C-01 <RH drive vehicles>
C-01
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
AC311015AC
Connector: C-122 <LH drive vehicles>
C-122
AC311016AB
Connector: C-138 <RH drive vehicles>
C-138
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-137
STEP 6. Check the harness between combination
meter connector C-01 (terminal No.10, 14, 15) and
4WD-ECU connector C-26 (terminal No.40, 52,
51).
Check the output line for short or open circuit.
Q: Is the check result normal?
YES :
Replace the ACD mode indicator lamp
assembly.
NO :
Repair the wiring harness.
STEP 7. Connector check: C-26 4WD-ECU
connector.
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Replace the 4WD-ECU.
NO :
Repair the defective connector.
AC311015AO
Connector: C-01 <LH drive vehicles>
C-01
C-01
AC311037
C-01
AG
Connector: C-01 <RH drive vehicles>
C-01
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-138
INSPECTION PROCEDURE 4: More than two ACD mode indicator lamps remain lit even after the
engine is started
ACD MODE INDICATOR LAMP SYSTEM
CIRCUIT
Refer to
OPERATION
Refer to
COMMENTS ON TROUBLE SYMPTOM
The output circuit of the ACD mode indicator lamp
may be faulty.
PROBABLE CAUSES
• Damaged harness wires and connectors
• Malfunction of the ACD mode indicator lamp
assembly
• Malfunction of the 4WD-ECU
DIAGNOSIS
STEP 1. Check the ACD mode indicator lamp
illumination.
(1) Disconnect the 4WD-ECU connector C-26.
(2) Turn the ignition switch to the ON position.
(3) Check that the ACD mode indicator lamp does
not illuminate.
OK: The indicator lamp does not illumi-
nate.
Q: Is the check result normal?
YES :
Replace the 4WD-ECU.
NO :
Go to Step 2.
AC311002
4WD-ECU
Harness side
C-26 (Y)
AC
Connector: C-26
4WD-ECU
C-26 (Y)
Rear console
assembly
<LH drive vehicles>
<RH drive vehicles>
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