Test A: The Wipers Are Inoperative

PINPOINT TEST A: THE WIPERS ARE INOPERATIVE

A1-A2:

A3-A6:

A6-A8:

A9-A11:

A12-A14:

Normal Operation
When the smart junction box (SJB) receives input from the multi-function switch to activate the wipers, the SJB activates the RUN/PARK relay through circuit RRW24 (GN/VT). When the RUN/PARK relay is activated, voltage is supplied back to the SJB through circuit CRW03 (VT/WH) into the (integral) HIGH/LOW relay. The windshield wiper motor receives power from the HIGH/LOW relay (integral to the SJB) through circuit CRW16 (GY/BN) for low speed and circuit CRW15 (BN/WH) for high speed. The windshield wiper motor is grounded through circuit GD121 (BK/YE). The multi-function switch is grounded through circuit GD116 (BK/VT).

Possible Causes
- Fuse(s)
- Open in circuit GD116 (BK/VT), GD121 (BK/YE), SBB09 (RD), CRW03 (VT/WH), RRW24 (GN/VT) or CBP23 (BN/YE)
- RUN/PARK relay
- Multi-function switch
- Windshield wiper motor
- SJB module