Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 864

Inspection Procedure 4
No power window can be operated by the power window
sub-switches (nor can they be operated by the main
switch).
The power window main switch, the power window sub-switch or power window
regulator assembly may be defective.
<Passenger's side>
Power window main switch check
(Refer to P.42-40.)
OK
Power window sub-switch check
(Refer to P.42-41.)
OK
Measure at the power window sub-
switch connector E-14.
Ignition switch (IG2): ON
Disconnect the connector and
measure at the harness side
Voltage between 3 and body earth
(When main switch is at UP)
Voltage between 2 and body earth
(When main switch is at DOWN)
Voltage between 1 and body earth
(When main switch is at AUTO)
Voltage between 6 and body earth
OK: System voltage
OK
Measure at the power window motor
connector E-21.
Disconnect the connector and
measure at the harness side
Voltage between 5 and body earth
(When sub-switch is at UP)
Voltage between 4 and body earth
(When sub-switch is at DOWN)
Voltage between 2 and body earth
(When sub-switch is at AUTO)
Voltage between 6 and body earth
OK: System voltage
OK
Measure at the power window motor
connector E-21.
Disconnect the connector and
measure at the harness side
Continuity between 1 and body earth
OK: Continuity
OK
Replace the power window regulator
assembly
BODY –
NG
Replace
NG
Replace
NG
Check the following connectors:
B-41, B-22, E-03, E-14
Check trouble symptom.
Check the harness between the
power window main switch and the
power window sub-switch, between
the power window main switch and
the fusible link No.6, between the
power window main switch and
ignition switch (IG2). Repair if
necessary.
NG
Check the following connectors:
B-45, B-22, E-14, E-21
Check trouble symptom.
Check the harness wire between power
window sub switch and power window
motor, between fusible link No.6 and
power window motor, and repair if nec-
essary.
NG
Check the following connectors:
B-22, E-21
Check trouble symptom.
Check the harness between the power
window motor and body earth.
Repair, if necessary.
Door
Probable cause
Malfunction of power window main switch
Malfunction of power window sub-switch
Malfunction of power window regulator assembly
Malfunction of wiring harness or connector
NG
OK
NG
NG
OK
NG
NG
OK
NG
42-21
Repair
Repair
Repair