Wiper System - Service Manual Revision

Number 84-10-6 Date 2/84
Subject: 1984 "A, X AND J" AND "B, D, E, G, K AND F" FISHER BODY SERVICE MANUAL REVISION -
STYLES AFFECTED: 6000, FIREBIRD, GRAND PRIX
This bulletin revises the information and diagnostic charts, as described and shown, in Section 2 of the Fisher Body Service Manual.

Permanent Magnet (PM) Two-Speed Wiper System

A new two-speed permanent magnet windshield. wiper motor is used as standard equipment on all 6000, Firebird and Grand Prix styles. The new wiper motor has an integral flex-vane washer motor mounted in the cover assembly. A circuit diagram is shown in Figure 2-1 of the Fisher Body Service Manual.

Wiper and Washer Operation

To operate the new two-speed wiper motor, move the multi-function lever to the low or high speed position. This completes the respective brush circuit to 12V(+) at the multi-function lever and allows the wiper motor to run at that speed.. When the wash button is depressed, washer fluid is sprayed onto the windshield until the button is released. For diagnosis of problems in the system refer to the new wiper/washer motor diagnosis chart, Figure 3, attached to this bulletin. The new chart replaces Figure 2-30 in the "A, X, J" and Figure 2-35 in the "B, D, E, G and K" manuals.

Wiper Motor

Check for motor operation before removing from vehicle. Disconnect all wiring from wiper and using a jumper, perform the checks outlined in Section 2, Figure 2-4 of the Fisher Body Service Manual.

Figure 2-3 in the Fisher Body Service Manual is not used when diagnosing problems on the new two-speed wiper system.

Washer Pump

Figure 1:

Check for washer pump operation before removing from vehicle. Remove cover harness connector and apply 12V(+) to #6 and #2 terminals as shown in the attached Figure 1 (Washer Pump On-Car Check).

Figure 2:

Figure 3:

Figure 4:

Figure 5:

The following illustrations have been revised in the Fisher Body Service Manual and are to be replaced with the attached illustrations:

Figure 2-7 (Wiper/Washer MultiFunction Lever Check) is replaced with Figure 2.

Figure 2-8 (Wiper/Washer Motor Diagnostic Chart) is replaced with Figure 3.

Figure 2-34 (Pulse Wiper/Washer Multi-Function Lever Check) is to be replaced with Figure 4.

Figure 2-35 (Pulse Wiper/Washer Motor Diagnostic Chart) is replaced with Figure 5.