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INTERMITTENT WINDSHIELD WIPER MOTOR AND SWITCH SERVICE PROCEDURES INDEX page page Intermittent Windshield Wiper Switch Tests . . . . . 12 Intermittent Wipe Switch Test . . . . . . . . . . . . . . . 14 Intermittent Wiper Function Tests . . . . . . . . . . . . 14 Intermittent Wiper Motor System Test . . . . . . . . . 12 Pulse Intermittent Windshield Wiper Controller (PIWWC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Standard Wiper Switch Test . . . . . . . . . . . . . . . . 14 Wiper Switch Service Procedure . . . . . . . . . . . . . 15 INTERMITTENT WIPER MOTOR SYSTEM TEST Intermittent Wiper Motor Service Procedures for diagnosis of problems which do not involve the delay If a problem occurs, only in the DELAY mode, the following tests are to be performed. INTERMITTENT WINDSHIELD WIPER SWITCH WARNING: ON VEHICLES EQUIPPED WITH AIR- The intermittent wipe function on AC, AG, AJ and AY vehicles is controlled by the body controller, lo- Panels and Gauges, for replacement procedures. CONDITION: WIPERS DO NOT COME ON PROCEDURE (1) Disconnect 25-way connector (blue) from the body controller. (2) Place wiper control switch in maximum DE- LAY position. (3) Connect positive lead of voltmeter to pin 9 of connector (blue) and negative lead to the good (a) If voltmeter reads 0, check control switch and wiring for an open circuit. (b) If voltmeter reads 10 to 15 volts, proceed to step 4. blue connector and negative lead to a good ground. (a) If voltmeter reads 0, check fuses and wiring for an open circuit. (b) If voltmeter reads 10 to 15 volts, reconnect body controller and proceed to step 5. blue connector and negative lead to the metal case of (a) If voltmeter reads 0, check wiring from the intermittent wipe switch to body controller for an (b) If voltmeter reads 10 to 15 volts, proceed to step 6. wiper switch. Place intermittent wiper switch in the (a) If voltmeter reads zero volts, change the in- termittent wiper switch. (b) If voltmeter reads 10-15 volts, check the wir- ing harness from the intermittent wiper switch to problem was not found, replace the body controller. Fig. 22 Body Controller Location 8K - 12 WINDSHIELD WIPER AND WASHER SYSTEMS Ä |