EXTERIOR LAMPS - Rear Fog Lamps (page 2 of 2)

The rear fog guard lamp ECU (C543-4) is connected to the rear fog guard lamp switch (C64-2) by a red/slate wire. When the switch is depressed momentarily, it provides an earth (C64-3) on a black wire. The fog guard lamp ECU is also earthed (C543-1) directly on a black wire. When the ECU senses the second earth via the switch, it provides a feed (C543-3) to the instrument pack warning lamp (C230-1), the RH rear fog guard lamp (C512-1), and the LH rear fog guard lamp (C515-1). All three are connected in parallel by red/yellow wires, and earthed on black wires.