Wipers Inoperative - One or More Modes - Front Wipers

WIPERS INOPERATIVE - ONE OR MORE MODES (FRONT WIPERS)

DIAGNOSTIC AIDS
The Wash mode for this diagnostic procedure is defined as the mode when the wiper switch is OFF and only the windshield washer switch has been activated. When the washer switch is activated with the wiper switch OFF, the wipers should wipe the windshield 3-5 times and then park.

TEST DESCRIPTION

Steps 1 - 11:

Steps 12 - 18:

Steps 19 - 34:

Step 35:

The numbers below refer to the step numbers on the diagnostic table.
2. This step will pinpoint which specific wiper functions are inoperative. The wipers should operate for all active windshield wiper switch positions. When the wiper switch is OFF and only the windshield washer switch is activated, the wipers should wipe the windshield 3-5 times and then park.
6. This step will help to pinpoint which specific circuit or component may be involved in the malfunction. When the Wash, and Park modes are inoperative as well as the Intermittent mode, the windshield wiper switch mist/off/low signal circuit and associated components are suspect. When the wipers operate for the Park mode but the Intermittent and Wash modes are both inoperative, suspect the accessory voltage feed circuit of the FRT WIPER Relay or an associated component.
12. This step is used when the wipers fail to wipe the windshield while only the washer switch is activated.
13. This step is used when the wipers still operate in all wiping modes, but fail to Park at the full down position. If this condition is present while the wipers are being operated in the Intermittent mode, the wipers typically will not return to the full down position. Instead, they will stop at random positions on the windshield and in between the timed wiper strokes. Or, if the wipers are being operated in either the High or Low mode, the wipers will stop in mid-stroke when the wiper switch is turned OFF.