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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 349 (Exterior Lighting) >> Diagnosis And Testing >> Headlamps >> Pinpoint Test F: The Power Supply Relay Is Inoperative - All Switched System Power (SSP) Features >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

Battery voltage is supplied to the SSP relays through the battery junction box (BJB). Ground for the SSP relay coils is controlled by the front electronic module (FEM) and the rear electronic module (REM) through the following circuits: 31S-DG51 (BK/YE), 31S-DG55 (BK/RD), 31S-DG57 (BK/YE), 31S-DG53 (BK/OG), 31S-DK21 (BK/WH) and 31S-DK30 (BK/OG). All of these circuits are spliced together so that either the FEM or the REM can ground this circuit and energize the SSP relays.

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