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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Lighting Systems) >> Description and Operation >> Exterior Lighting Systems Description and Operation >> Front Fog Lamps

Front Fog Lamps

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

When the fog lamp switch is turned ON, ground from G304 is applied through the fog lamp switch signal circuit to the body control module (BCM) indicating the fog lamps ON request. In response to this signal, the BCM applies ground to the fog lamp relay control circuit energizing the FOG LAMP PCB Relay. With the relay energized, battery voltage is applied through the switch side of the relay, the FOG fuse, and the fog lamp supply voltage circuits illuminating the fog lamps. At the same time the BCM sends a GMLAN serial data message to the instrument panel cluster (IPC) requesting that the fog lamp indicator be illuminated. Ground for the left and right fog lamps is provided at G104.

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