Do you know how to do electrical testing ?
PINPOINT TEST E: WINDSHIELD WIPERS WILL NOT PARK AT PROPER POSITION
E1 CHECK WIPER MOTOR GROUND
- Disconnect connector from windshield wiper motor.
- Check continuity to ground at Circuit 57 (BK).
Is ground OK?
Yes
No
GO to
E2 .
SERVICE open in Circuit 57 (BK). RESTORE vehicle. RETEST system.
E2 CHECK FOR POWER AT WIPER MOTOR
- Place ignition switch at RUN and multi-function switch at OFF.
- Check for battery voltage between Pin 1, Circuit 65 (DG) and Pin 4, Circuit 57 (BK) at the windshield wiper motor connector.
Is B+ present?
Yes
No
GO to
E3 .
SERVICE open circuits. RESTORE vehicle. RETEST system.
E3 CHECK MOTOR CIRCUIT CONTINUITY THROUGH WINDSHIELD WIPER CONTROL MODULE
- With multi-function switch at OFF, check continuity between Circuit 28 (BK/PK) and 56 (DB/O) and between Circuits 61 (Y/R) and 63 (R).
Is continuity OK?
Yes
No
GO to
E5 .
GO to
E4 .
E4 CHECK CIRCUITS TO WIPER CONTROL MODULE
- Disconnect wiper control module connector.
- Check continuity of Circuits according to the chart below from the wiper motor to the wiper control module.
Wiper Control Module Connector
Wiper Motor Connector Pin
Circuit
Pin 6
Pin 2
28 (BK/PK)
Pin 8
Pin 6
56 (DB/O)
Pin 12
Pin 5
61 (Y/R)
Pin 13
Pin 3
63 (R)
Is continuity present?
Yes
No
REPLACE wiper control module. RESTORE vehicle. RETEST system.
SERVICE open circuits. RESTORE vehicle. RETEST system.
E5 CHECK WIPER MOUNTING ARM/PIVOT SHAFT
- Check that windshield wiper mounting arm and pivot shaft and linkage is not bent, cracked or mis-positioned.
Is windshield wiper mounting arm and pivot shaft linkage OK?
Yes
No
REPLACE windshield wiper motor. RESTORE vehicle. RETEST system.