Test F: The Rear Window Wiper Is Inoperative

PINPOINT TEST F: THE REAR WINDOW WIPER IS INOPERATIVE

F1:

F1 Continued:

F1-F2:

F2-F3:

F3-F4:

F4-F5:

F5 Continued:

F6-F8:

F8-F9:

F9-F11:

F11-F13:

F13-F15:

F16-F17:

Normal Operation
With the ignition switch in the START or RUN position, the wiper/washer switch receives voltage from the central junction box (CJB) through circuit 15-KA19 (GN/OG). When rear wiper function is selected, the wiper/washer switch sends a voltage signal to the generic electronic module (GEM) through circuit 32-KA35 (WH/RD). The GEM provides a ground signal to the rear wiper relay coil through circuit 91S-KA29 (BK/YE). The relay energizes and provides to the rear window wiper motor through circuit 32-KA28 (WH/RD). When the rear wiper switch is turned off, the rear window wiper motor continues to receive voltage through circuit 15-KA28 (GN/BU) until the wiper motor completes its cycle and the internal run/park switch opens the circuit.

Possible Causes
- Fuse(s)
- Circuit 15-KA19 (GN/OG) open
- Circuit 15-KA28 (GN/BU) open
- Circuit 31-DA1 (BK) open
- Circuit 31-KA19 (BK) open
- Circuit 32-KA28 (WH/RD) open
- Circuit 32-KA35 (WH/RD) open
- Circuit 91S-KA29 (BK/YE) open, short to voltage
- Rear window wiper motor
- Rear wiper relay
- Wiper/washer switch
- CJB
- GEM