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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 639 (Wipers And Washers) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test B: The Wipers Stay On Continuously >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The smart junction box (SJB) receives input from the multi-function switch through circuits CRW18 (VT/WH), CRW19 (BU/OG), CRW08 (VT/OG) and CRW17 (GN/VT). To enable 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).

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