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
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