Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 869

42-26
Inspection Precedure 10
None of the door lock functions operate.
Power circuit system or earth circuit system of the door lock-ECU or the
keyless entry receiver-ECU may be defective.
Measure at the door lock-ECU con-
nector B-67X or keyless entry receiver-
ECU connector B-21*.
Disconnect the connector and
measure at the harness side.
Voltage between 5 and body earth
(without keyless entry system)
Voltage between 22 and body
earth (with keyless entry system)
OK: System voltage
OK
Measure at the door lock-ECU connec-
tor B-67X or keyless entry receiver-
ECU connector B-21*.
Disconnect the connector and
measure at the harness side.
Continuity between 6 and body
earth (without keyless entry
system)
Continuity between 21 and body
earth (with keyless entry system)
OK: Continuity
OK
Check the harness between the door
lock actuator and door lock-ECU or key-
less entry receiver-ECU, and repair if
necessary.
OK
Replace the door lock-ECU or the key-
less entry receiver-ECU.
*: With keyless entry system
BODY –
NG
Check the following connector:
B-22
Check trouble symptoms.
NG
Check the following connectors:
B-64X, B-21*
Check trouble symptoms.
NG
Check the following connectors:
E-05, B-41, B-67X, E-04*, B-21*
Door
Probable cause
Malfunction of door lock-ECU
Malfunction of keyless entry receiver-ECU
Malfunction of wiring harness or connector
NG
OK
NG
NG
OK
NG
NG
Repair
Check the harness between the
door lock-ECU or keyless entry
receiver-ECU and fusible link No.1,
and repair if necessary.
Repair
Check the harness between the
door lock-ECU or keyless entry
receiver-ECU and earth, and
between the door lock-ECU or
keyless entry receiver-ECU and the
joint connector, and repair if
necessary.
Repair