Mitsubishi Lancer Evolution IX. Manual — part 601
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-87
STEP 11. Check the harness between stop lamp
switch connector C-102 terminal No.1 and
4WD-ECU connector C-26 terminal No.38.
Check the output line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the wiring harness.
STEP 12. Connector check: C-129 intermediate
connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Repair the defective connector.
STEP 13. Check the harness between stop lamp
switch connector C-102 terminal No.2 and
battery.
Check the power supply line for short or open circuit.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the wiring harness.
AC309520
Connector: C-102
Harness side
Brake pedal
AC
4
3
2
1
C-102
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>
AC311015AH
Connector: C-129 <LH drive vehicles>
C-129
AC311016AG
Connector: C-129 <RH drive vehicles>
C-129
AC309520
Connector: C-102
Harness side
Brake pedal
AC
4
3
2
1
C-102
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-88
Code No.62 ACD mode changeover switch system
ACD mode changeover switch system circuit <LH drive vehicles>
IGNITION
SWITCH(IG1)
ACD MODE
CHANGEOVER
SWITCH
4WD-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-89
OPERATION
The 4WD-ECU receives a control mode (tarmac,
gravel, snow) from the ACD mode changeover
switch.
DIAGNOSIS CODE SET CONDITIONS
Code No.62 is set when the ACD mode changeover
switch is ON for more than 60 seconds.
PROBABLE CAUSES
• Malfunction of the ACD mode changeover switch
• Damaged harness wires and connectors
• Malfunction of the 4WD-ECU
DIAGNOSIS
STEP 1. M.U.T.-II/III data list
Item 63: ACD mode changeover switch (Refer to
data list reference table
).
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
).
NO :
Go to Step 2.
STEP 2. Check the ACD mode changeover
switch.
Refer to
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the ACD mode changeover switch.
ACD mode changeover switch system circuit <RH drive vehicles>
IGNITION
SWITCH(IG1)
ACD MODE
CHANGEOVER
SWITCH
4WD-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
TROUBLESHOOTING <ACD>
MANUAL TRANSMISSION (FF)
22A-90
STEP 3. Measure the voltage at ACD mode
changeover switch connector C-135.
(1) Disconnect the ACD mode changeover switch
connector, and measure the voltage between
terminal No.2 and earth.
(2) Turn the ignition switch to the ON position.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Go to Step 4.
STEP 4. Connectors check: C-23 J/C (4), C-135
ACD mode changeover switch connector, C-211,
C-214 J/B connector <LH drive vehicles> or
C-135 ACD mode changeover switch connector,
C-210, C-211 J/B connector <RH drive vehicles>.
AC311015AI
Connector: C-135 <LH drive vehicles>
C-135
AC311037
C-135
AD
Connector: C-135 <RH drive vehicles>
AC311015AK
Connector: C-23 <LH drive vehicles>
C-23 (B)
AC311015AI
Connector: C-135 <LH drive vehicles>
C-135
AC311037
C-135
AD
Connector: C-135 <RH drive vehicles>
AC310448
AW
Connector: C-211, C-214 <LH drive vehicles>
Junction block (front view)
C-214
C-211
C-211
C-214
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