Test H: The Intermittent Wiper Speed Does Not Operate Correctly (High/Low Speeds OK)

PINPOINT TEST H: THE INTERMITTENT WIPER SPEED DOES NOT OPERATE CORRECTLY (HIGH/LOW SPEEDS OK)

H1-H3:

H3-H5:

H5-H8:

H9:

Normal Operation
When low speed operation is selected, the windshield wiper motor receives voltage through circuit 32-KA10 (WH/GN). When high speed operation is selected, the windshield wiper motor receives voltage through circuit 32-KA11 (WH/BK). When intermittent operation is selected, the wiper/washer switch sends a voltage signal to the generic electronic module (GEM) through circuit 8-KA19 (WH/BK). The intermittent variable delay switch sends a selective resistance voltage signal to the GEM through circuit 8-KA18 (WH). The GEM interprets these input voltages and sends an intermittent ground signal to the windshield wiper relay through circuit 91S-KA12 (BK/WH). The relay energizes and sends voltage to the wiper/washer switch through circuit 32-KA19 (WH/BK). The wiper/washer switch sends voltage to the windshield wiper motor through circuit 32-KA10 (WH/GN). When the wiper/washer switch is turned to the off position, or between intermittent pulses, the internal run/park switch in the windshield wiper motor provides voltage to the windshield wiper relay through circuit 32-KA9 (WH/BU) until the wiper motor completes its cycle and opens the circuit.

Possible Causes
- circuit 8-KA18 (WH) open
- circuit 8-KA19 (WH/BK) open
- circuit 15-KA19 (GN/OG) open
- circuit 32-KA19 (WH/BK) open
- circuit 91S-KA12 (BK/WH) open or short to voltage
- windshield wiper relay
- wiper/washer switch
- GEM