Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 432

CHASSIS ELECTRICAL -
Inspection procedure 2
The ignition keys cannot be registered using the MUT-II.
The ignition key has not been registered with the immobilizer-ECU. Or that there
is a problem with the immobilizer-ECU.
Can none of the ignition keys be registered?
Is a normal diagnosis code output?
Immobilizer-ECU power supply and earth circuit system check
(Refer to Inspection Procedure 4.)
Inspection procedure 3
The engine does not start. (The engine cranks but does
not fire.)
If the fuel injection does not operate, the cause is probably a problem with the
immobilizer-ECU, or it could also be a problem with the MPI system. If an
attempt has been made to start the engine with a key that has not been
properly registered, the above symptom is a sign of normal operation.
Voltage check during cranking
OK: 8 V or higher
Is a normal diagnosis code output by the engine-ECU?
Is a normal diagnosis code output from the immobilizer-ECU?
To inspection procedures if the engine does not fire (Refer to
GROUP 13A - Troubleshooting.)
Check the trouble symptoms.
Immobilizer-ECU power supply and earth circuit system check
(Refer to Inspection Procedure 4.)
Ignition Switch and Immobilizer System
YES
NO
OK
NO
NO
NG
NG
Probable cause
D Malfunction of ignition key
D Malfunction of harness or connector
D Malfunction of immobilizer-ECU
NO
Replace the ignition key that cannot be registered.
Register the ignition key.
YES
To Chart Classified by Diagnosis Codes (Refer to P.54A-6.)
OK
Check the trouble symptoms.
Replace the immobilizer-ECU.
Probable cause
D Malfunction of MPI system.
D Malfunction of immobilizer-ECU
NG
Battery check (Refer to P.54A-4)
YES
Refer to GROUP 13A - Troubleshooting.
YES
To Chart Classified by Diagnosis Codes (Refer to P.54A-6.)
OK
Check the trouble symptoms.
Replace the immobilizer-ECU.
54A-9
NG
NG