Mitsubishi Pajero Pinin. Manual - part 356

SWS – 

Troubleshooting

54B-26

Inspection Procedure G-1

Rear wiper and washer: Rear wiper does not work
normally.

Probable cause

The ETACS-ECU operates the rear wiper according to the input signals from the
following switches:

D

Ignition switch (ACC)

D

Rear wiper switch

If the rear wiper does not work normally, the relevant input signal circuit, the
rear wiper motor, the column switch or the ETACS-ECU may be defective.

D

Malfunction of rear wiper motor

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

MUT-

II

 input signal check

D

Ignition switch (ACC)

D

Rear wiper switch

NG

Check the defective input circuit. (Refer to P.54B-13, Defects Found
by Input Signal Check.)

OK

Check the rear wiper motor. (Refer to GROUP 51 – Rear Wiper
and Washer.)

NG

Replace

OK

Measure at rear wiper motor connector F-05.

D

Disconnect connector and measure at harness side.

D

Continuity between terminal 1 and body earth.
OK: Continuity

NG

Check the following connector:
F-05

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between rear wiper motor and body earth.

NG

Repair

OK

Check trouble symptoms.

OK

Replace the front-ECU.

OK

Check the following connectors:
C-68, C-82, D-15, F-05

NG

Check the harness wire between rear wiper motor and ETACS-ECU.

NG

Replace

Inspection Procedure G-2

Rear wiper and washer: Rear wiper does not stop at the
predetermined park position.

Probable cause

The rear wiper motor or the ETACS-ECU may be defective.

D

Malfunction of rear wiper motor

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

MUT-

II

 input signal check

D

Rear wiper auto-stop signal

NG

Check the rear wiper auto-stop signal input circuit. (Refer to
P.54B-41, Inspection Procedure N-9.)

OK

Replace the ETACS-ECU.

SWS – 

Troubleshooting

54B-27

Inspection Procedure G-3

Rear wiper and washer: When the shift lever <M/T> or
selector lever <A/T> is moved to R position during the rear
wiper operation, the rear wiper does not operate at the
continuous mode.

Probable cause

The ETACS-ECU operates the rear wiper consecutively twice when the shift
lever <M/T> or selector lever <A/T> is moved to R position while the rear wiper
is turned on. If the rear wiper does not work consecutively twice, the back-up
lamp switch <M/T> or the inhibitor switch (reverse) <A/T> may be defective.

D

Malfunction of back-up lamp switch

D

Malfunction of inhibitor switch

D

Malfunction of ETACS-ECU

D

Malfunction of harness wire or connector

MUT-

II

 input signal check

D

Back-up lamp switch <M/T>

D

Inhibitor switch (reverse) <A/T>

NG

Check the defective input circuit. (Refer to P.54B-13, Defects Found
by Input Signal Check.)

OK

Replace the ETACS-ECU.

Inspection Procedure G-4

Rear wiper and washer: Rear washer does not work.

Probable cause

The rear washer motor, the column switch or the ETACS-ECU may be defective.

D

Malfunction of rear washer motor

D

Malfunction of column switch

D

Malfunction of ETACS-ECU

D

Malfunction of harness wire or connector

Is the rear wiper operated normally?

No

Check the rear wiper. (Refer to P.54B-12, Trouble Symptom Chart.)

Yes

MUT-

II

 input signal check

D

Rear washer switch

NG

Check the rear washer switch circuit. (Refer to P.54B-45, Inspection
Procedure N-14.)

OK

Check the rear washier motor. (Refer to GROUP 51 – Rear Wiper
and Washer.)

NG

Replace

OK

Measure at rear washer motor connector A-73.

D

Disconnect connector and measure at harness side.

D

Continuity between terminal 1 and body earth.
OK: Continuity

NG

Check the following connector:
A-73

OK

Check trouble symptoms.

NG

Repair

NG

Check the harness wire between windshield washer motor and
body earth.

OK

Check the following connectors:
A-73, C-72, C-82

OK

Check trouble symptoms.

NG

Repair

NG

Check the harness wire between rear washer motor and ETACS-
ECU.

NG

Repair

OK

Replace the ETACS-ECU.

SWS – 

Troubleshooting

54B-28

Inspection Procedure H-1

Headlamp washer: Headlamp washer does not work.

Probable cause

The front-ECU operates the headlamp washers if the headlamp washer switch is
turned to ON while the headlamp relays (low and high) are ON and the ignition
switch is at the ACC or ON position.
If the headlamp washer does not work normally, the headlamp washer motor,
the column switch or the front-ECU may be defective.

D

Malfunction of headlamp washer motor

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

Is the windshield wiper and headlamp operated normally?

No

Check the defective operation. (Refer to P.54B-11, Trouble Symp-
tom Chart.)

Yes

MUT-

II

 input signal check

D

Headlamp washer switch

NG

Check the headlamp washer switch circuit. (Refer to P.54B-13,
Inspection Procedure N-13.)

OK

Check the headlamp washier motor. (Refer to GROUP 51 – Head-
lamp Washer.)

NG

Replace

OK

Measure at headlamp washer motor connector A-21.

D

Disconnect connector and measure at harness side.

D

Continuity between terminal 2 and body earth.
OK: Continuity

NG

Check the following connector:
A-21

OK

Check trouble symptoms.

NG

Repair

NG

Check the harness wire between headlamp washer motor and
body earth.

OK

Measure at front-ECU connector A-37X.

D

Disconnect connector and measure at relay box side.

D

Voltage between terminal 9 and body earth.
OK: System voltage

NG

Check the following connector:
A-37X

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between front-ECU and fusible link (4).

NG

Repair

OK

Check trouble symptoms.

OK

Replace the front-ECU.

OK

Check the following connectors:
A-21, A-37X

NG

Check the harness wire between headlamp washer motor and
front-ECU.

NG

Repair

SWS – 

Troubleshooting

54B-29

Inspection Procedure I-1

Headlamp, tail lamp: Tail lamp do not illuminate.

Probable cause

The column switch or the front-ECU may be defective.

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

NOTE
If only one lamp does not illuminate, the harness wire between the lamp and front-ECU may be defective
or the light bulb may be burned out. In this case, check the tail lamp circuit.

OK

Replace the Front-ECU.

Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?

Yes

Carry out troubleshooting while referring to the Diagnosis
Code Chart on P.54B-7.

No

MUT-

II

 input signal check

D

Tail lamp switch

NG

Check the tail lamp switch input circuit. (Refer to P.54B-45, Inspec-
tion Procedure N-14.)

Inspection Procedure I-2

Headlamp, tail lamp: Headlamps (low-beam) do not
illuminate.

Probable cause

The column switch or the front-ECU may be defective.

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

NOTE
If only one of the headlamps (low-beam) does not illuminate, the harness wire between the headlamp
and front-ECU may be defective or the headlamp bulb may be burned out. In this case, check the headlamp
circuit.

OK

Replace the Front-ECU.

No

MUT-

II

 input signal check

D

Headlamp switch

NG

Check the headlamp switch input circuit. (Refer to P.54B-45, In-
spection Procedure N-14.)

Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?

Yes

Carry out troubleshooting while referring to the Diagnosis
Code Chart on P.54B-7.