Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 940

MANUAL TRANSMISSION - Troubleshooting <ACD>
Inspection procedure 3
The ACD mode indicator lamp does not light up when the
ignition switch is turned "ON" (engine stop).
The ACD mode indicator lamp circuit or 4WD-ECU may be faulty.
Measure at combination meter connector C-01.
D Disconnect the connector and measure at the harness
side.
D Ignition switch: ON
D Voltage between terminal 9 and body earth
OK: System voltage
Measure at 4WD-ECU connector C-43.
D Disconnect the connector and test at the harness side.
D Ignition switch: ON
D Body earth terminals 40, 51, and 52.
OK: The indicator lamp lights up.
Check the following connector: C-43
NG→Repair
Check the trouble symptoms.
Replace the 4WD-ECU.
OK
OK
OK
NG
Probable cause
D Harness or connector fault
D ACD mode indicator lamp assembly fault
D 4WD-ECU fault
NG
Check the following connectors:
<L.H. drive vehicles> C-01, C-29, C-213, C-210
<R.H. drive vehicles> C-01, C-213, C-210
NG→Repair
Check the trouble symptoms.
Check the harness between the ignition switch and ACD
mode indicator lamp assembly.
D Check for open circuit or damage of the power line.
NG→Repair
NG
Check the ACD mode indicator lamp assembly.
NG→Replace
Check the following connectors:
<L.H. drive vehicles> C-43, C-128, C-01
<R.H. drive vehicles> C-43, C-01
NG→Repair
Check the trouble symptoms.
Check the harness between the ACD mode indicator lamp
assembly and 4WD-ECU.
D Check for open and damage of the power line.
NG→Repair
22A-33
OK
NG
OK
OK
NG