Mitsubishi Pajero Pinin. Manual - part 355

SWS – 

Troubleshooting

54B-22

Inspection Procedure E-1

Keyless entry system: Keyless entry system does not
operate.

Probable cause

The cause may be a malfunction of the receiver and transmitter communication
system

D

Malfunction of transmitter

D

Malfunction of ETACS-ECU

OK

Replace the ETACS-ECU.

Is the central door locking system operated normally?

No

Check the central door locking system. (Refer to P54B-11, Trouble
Symptom Chart.)

Yes

MUT-

II

 input signal check

D

Transmitter

NG

Check the transmitter input circuit. (Refer to P.54B-46, Inspection
Procedure N-17.)

Inspection Procedure E-2

Keyless entry system: The room lamp and hazard warning
lamps do not operate through the answerback function.

Probable cause

The hazard warning lamp answerback function can be selected by the driver’s
desire (can be deactivated). However, the room lamp answerback function can
not be deactivated. if all of these device do not operate through the
answerback function, the ETACS-ECU may be defective.

D

Malfunction of turn-signal lamp

D

Malfunction of room lamp

D

Malfunction of ETACS-ECU

D

Malfunction of harness wire or connector

Activate the answerback functions. (Refer to GROUP 42 – Keyless
Entry System.)

Check trouble symptoms.

NG

Are room lamp and hazard warning lamps operated normally?

No

Check the defective device. (Refer to P.54B-11, Trouble Symptom
Chart.)

Yes

Replace the ETACS-ECU.

Inspection Procedure E-3

Keyless entry system: The encrypted code cannot be
registered.

Probable cause

The ETACS-ECU actives the encrypted code register mode according to the
following switch signals.

D

Key reminder switch

D

Hazard warning lamp switch

If the encrypted code register mode is not set, the relevant input signal circuit
or the ETACS-ECU may be defective.
If a transmitter can not be registered although the encrypted code register
mode is set, the transmitter or the ETACS-ECU may be defective.

D

Malfunction of key reminder switch

D

Malfunction of hazard warning lamp switch

D

Malfunction of transmitter

D

Malfunction of ETACS-ECU

D

Malfunction of harness wire or connector

OK

Replace the ETACS-ECU.

Is encrypted code register mode set?

Yes

Check the transmitter battery. (Refer to GROUP 42 – Keyless
entry System.)

No

MUT-

II

 input signal check

D

Key reminder switch

D

Hazard warning lamp switch

NG

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

NG

Repair

OK

Replace the transmitter.

SWS – 

Troubleshooting

54B-23

Inspection Procedure F-1

Windshield wiper and washer: Windshield wiper does not
operate.

Probable cause

If the windshield wiper does not work at all, the windshield wiper motor, column
switch or the front-ECU may be defective.

D

Malfunction of windshield 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

Windshield mist wiper switch

D

Windshield intermittent wiper switch

D

Windshield low-speed wiper switch

D

Windshield high-speed wiper switch

NG

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

OK

Check the windshield wiper motor. (Refer to GROUP 51 – Wind-
shield Wiper and Washer.)

NG

Replace

OK

Check the installation of the windshield wiper motor to the vehicle
body.

NG

OK

Measure at front-ECU connector A-38X.

D

Disconnect connector and measure at relay box side.

D

Turn the ignition switch to ACC position.

D

Voltage between terminal 24 and body earth.
OK: System voltage

NG

Check the following connectors:
A-38X, C-72, C-74

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between front-ECU and ignition switch
(ACC).

OK

Replace the front-ECU.

Repair

SWS – 

Troubleshooting

54B-24

Inspection Procedure F-2

Windshield wiper and washer: Any of the windshield wiper
switch positions is defective.

Probable cause

The windshield wiper motor, column switch or the front-ECU may be defective.

D

Malfunction of windshield 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

Windshield mist wiper switch

D

Windshield intermittent wiper switch

D

Windshield low-speed wiper switch

D

Windshield high-speed wiper switch

NG

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

OK

Check the windshield wiper motor. (Refer to GROUP 51 – Wind-
shield Wiper and Washer.)

NG

Replace

OK

Replace the front-ECU.

OK

Check the following connectors:
A-16, A-38X

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between windshield wiper motor and front-
ECU.

NG

Repair

Inspection Procedure F-3

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

Probable cause

The windshield wiper motor or the front-ECU may be defective.

D

Malfunction of windshield wiper motor

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

Check the windshield wiper motor. (Refer to GROUP 51 – Wind-
shield Wiper and Washer.)

NG

Replace

OK

Measure at windshield wiper motor connector A-16.

D

Disconnect connector and measure at harness side.

D

Turn the ignition switch to ACC position.

D

Voltage between terminal 3 and body earth.
OK: System voltage

NG

Check the following connectors:
A-16, C-72, C-74

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between windshield wiper motor and igni-
tion switch (ACC).

NG

Repair

OK

Check trouble symptoms.

OK

Replace the front-ECU.

OK

Check the following connectors:
A-16, A-38X

NG

Check the harness wire between windshield wiper motor and front-
ECU.

NG

Repair

SWS – 

Troubleshooting

54B-25

Inspection Procedure F-4

Windshield wiper and washer: Windshield intermittent
wiper interval cannot be adjusted.

Probable cause

The ETACS-ECU calculates the intermittent wiper interval, and sends a signal to
the front-ECU through the SWS communication line. If the signal is defective,
the front-ECU will ignore the signal and set the intermittent wiper interval to 4
seconds.

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of ETACS-ECU

D

Malfunction of harness wire or connector

MUT-

II

 input signal check

D

Windshield intermittent wiper interval adjusting knob

NG

Check the windshield wiper interval adjusting knob input circuit.
(Refer to P.54B-45, Inspection Procedure N-15.)

OK

Replace the front-ECU or ETACS-ECU.

Inspection Procedure F-5

Windshield wiper and washer: Windshield washer does
not work.

Probable cause

The windshield washer motor, the column switch or the front-ECU may be
defective.

D

Malfunction of windshield washer motor

D

Malfunction of column switch

D

Malfunction of front-ECU

D

Malfunction of harness wire or connector

Is the windshield wiper operated normally?

No

Check the windshield wiper. (Refer to P.54B-11, Trouble Symptom
Chart.)

Yes

MUT-

II

 input signal check

D

Windshield washer switch

NG

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

OK

Check the windshield washier motor. (Refer to GROUP 51 – Wind-
shield Wiper and Washer.)

NG

Replace

OK

Measure at windshield washer motor connector A-74.

D

Disconnect connector and measure at harness side.

D

Continuity between terminal 1 and body earth.
OK: Continuity

NG

Check the following connector:
A-74

OK

Check trouble symptoms.

NG

Repair

NG

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

OK

Check the following connectors:
A-38X, A-74

OK

Check trouble symptoms.

NG

Repair

NG

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

NG

Repair

OK

Replace the front-ECU.