Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 938

MANUAL TRANSMISSION - Troubleshooting <ACD>
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom
No communication possible between MUT-II and all systems.
No communication possible between MUT-II and 4WD-ECU.
ACD mode indicator lamp does not light up when the ignition switch is set to "ON"
(engine is stopped).
More than two ACD mode indicator lamps remain lit even after the engine is started
The ACD does not operate (no diagnostic code).
The AYC does not operate (no diagnostic code).
The rear tire sounds when turning at low speed corners (vehicle slows down)
Noise is produced from the torque transfer differential during turning.
INSPECTION PROCEDURES FOR TROUBLE SYMPTOMS
Inspection procedure 1
No communication possible between MUT-II and all
systems.
The diagnosis connector power supply circuit, earth circuit, or MUT-II may be
faulty.
Measure at diagnosis connector C-22.
Voltage between terminal 16 and body earth
D
OK: System voltage
Measure at diagnosis connector C-22.
D Resistance between terminals 4 and 5 and body earth.
OK: 2 Ω or less
Replace the MUT-II.
OK
OK
Probable cause
D Diagnostic connector fault
D Harness or connector fault
D MUT-II fault
NG
Check the following connectors:
<L.H. drive vehicles> C-22, C-213, C-211, C-132
<R.H. drive vehicles> C-22, C-213, C-211, C-35, C-132
NG→Repair
Check the trouble symptoms.
Check the harness between the fusible link No.1 and
diagnosis connector.
D Check for open circuit or damage of the power line.
NG→Repair
NG
Check the harness between the body earth and diagnosis
connector.
D Check for open circuit and damage of the earth line.
NG→Repair
22A-31
Inspection Reference
procedure No. page
1 22A-31
2 22A-32
3 22A-33
4 22A-34
5 22A-34
6 Refer
GROUP GROUP
7
27B. 27B.
8
OK
NG
to