Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 896

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure 1
None of the doors, including the tailgate, can be locked or
unlocked. (However, the central door locking system is
functioning normally.)
The transmitter battery may be spent, the secret code may not have been registered
correctly, or there may be a malfunction of the transmitter. If the transmitter is normal,
the cause is probably a malfunction of the keyless entry receiver-ECU.
Replace the transmitter battery (refer to P.42-55.) and then press
the transmitter LOCK or UNLOCK switch.
OK: Indicator lamp illuminates
Replace the transmitter.
Inspection Procedure 2
All of the doors, including the tailgate, can be locked and
unlocked, but the hazard lamp does not illuminate or does
not flash. (However, the hazard lamp flashes normally
when the hazard lamp switch is used.)
The keyless entry receiver-ECU or the harness between hazard lamp and keyless
entry receiver-ECU may be defective.
Measure at the keyless entry receiver
ECU connector B-21.
Disconnect the connector and
measure at the harness side.
Continuity between 7 and body earth
Continuity between 8 and body earth
OK: Continuity
OK
Replace the keyless entry receiver-
ECU.
BODY – BODY –
Keyless Entry System Keyless Entry System
NG
NG
Check the following connectors:
B-21, B-81, B-80
Check trouble symptoms.
Check the harness wire between key-
less entry receiver-ECU and intermedi-
ate connector, and repair if necessary.
Probabble cause
Malfunction of the battery
Malfunction of the transmitter
Malfunction of the keyless entry receiver-ECU
OK
Re-register the secret code.(Refer to P.42-56.)
Check trouble symptoms.
Replace the keyless entry receiver-ECU.
Probable cause
Malfunction of the keyless entry receiver-ECU
Malfunction of harness or connector
NG
OK
NG
42-53
OK
NG
Repair