Wiper Switch: Testing and Inspection

WIPER / WASHER: WIPER SWITCH: INSPECTION

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (w/ Rain Sensor)

(a) Check the front wiper switch.





Text in Illustration





(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(b) Check the front washer switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(c) Check the rain sensor adjust switch.





Text in Illustration





(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(d) Check the rear wiper switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(e) Check the rear washer switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

2. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (w/o Rain Sensor)

(a) Check the front wiper switch.





Text in Illustration





(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(b) Check the front washer switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(c) Check the intermittent operation.

(1) Connect the voltmeter positive (+) lead to terminal A-3 (+1) and the negative (-) lead to terminal B-2 (EW).

(2) Connect the battery positive (+) lead to terminal A-2 (+B) and the negative (-) lead to terminal B-2 (EW) and A-1 (+S).

(3) Turn the wiper switch to the INT position.

(4) Connect the battery positive (+) lead to terminal A-1 (+S) for 5 seconds.

(5) Connect the battery negative (-) lead to terminal A-1 (+S). Operate the intermittent wiper relay and check the voltage between terminals A-3 (+1) and B-2 (EW).

OK:

Refer to the illustration below.





Text in Illustration





If the result is not as specified, replace the windshield wiper switch assembly.

(d) Check the front washer operation.

(1) Turn the wiper switch OFF.

(2) Connect the positive (+) battery lead to terminal A-2 (+B) and the negative (-) battery lead to terminals A-1 (+S) and B-2 (EW).

(3) Connect the positive (+) voltmeter terminal to terminal A-3 (+1) and the negative (-) voltmeter terminal to terminal B-2 (EW). Turn the washer switch on and off, and check the voltage between terminals A-3 (+1) and B-2 (EW).

OK:

Refer to the illustration below.





Text in Illustration





If the result is not as specified, replace the windshield wiper switch assembly.

(e) Check the rear wiper switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.

(f) Check the rear washer switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





If the result is not as specified, replace the windshield wiper switch assembly.