Body Electrical - Wiper/Washers

Wiper/Washers

Rear Window Wiper Intermittent Control Unit Input Test (cont'd)

22-175

With the connector still disconnected, make these input tests at the connectors.

If any test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, the control unit must be faulty; replace it.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if result is not obtained
1	GRN	Ignition switch ON (II)	Check for voltage to ground: There should be battery voltage.	Blown No. 9 (10A) fuse in the under-dash fuse/relay box An open in the wire
10	BLK	Under all conditions	Check for continuity to ground: There should be continuity.	Poor ground (G553) An open in the wire
2	BLU/YEL	Ignition switch ON (II) and windshield wiper switch in HI	Check for voltage to ground: There should be battery voltage.	Blown No. 20 (20A) [No. 20 (30A)] fuse in the under-dash fuse/relay box Faulty windshield wiper/washer switch An open in the wire
11	BLU	Ignition switch ON (II) and windshield wiper switch in LO
12	BLU/BLK	Ignition switch ON (II) and windshield wiper switch in INT
19	GRN	Ignition switch ON (II) and shift lever position in [R]	Check for voltage to ground: There should be battery voltage	Blown No. 10 (7.5A) fuse in the under-dash fuse/relay box Faulty back-up light switch (M/T) Faulty transmission range switch (A/T) An open in the wire
6	WHT/RED	Ignition switch ON (II) and rear window washer switch ON	Check for voltage to ground: There should be battery voltage	Blown No. 9 (10A) fuse in the under-dash fuse/relay box Faulty rear window wiper/washer switch An open in the wire
4	LT GRN/RED	Ignition switch ON (II) and rear window wiper switch ON	Attach to ground: The rear window wiper motor should run.
9	LT GRN	Ignition switch ON (II)	Attach to ground: The rear window wiper motor should run	Blown No. 9 (10A) fuse in the under-dash fuse/relay box Faulty rear window wiper motor An open in the wire
20	LT GRN/BLK	Ignition switch ON (II)	Check for voltage to ground: There should be battery voltage	Blown No. 9 (10A) fuse in the under-dash fuse/relay box Faulty rear window wiper motor An open in the wire

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