Fog lamps (page 2 of 2)

When the fog lamp ECU (C1724 on LHD, C0543 on RHD) receives a feed from fuse 26, it provides a feed to the fog lamp switch (C0064 on LHD, C1741 on RHD) on a BS wire. When the fog lamp is pressed, the switch contacts close, and a momentary earth path is created on a B wire. Sensing this earth, the fog lamp ECU (C1724 on LHD, C0543 on RHD) provides a feed to the following on RY wires:

The tell-tale LED (C0064) located in the fog lamp switch The warning lamp (C0233) located in the instrument pack The rear fog lamp (C0512 on LHD, C2119 on RHD) – 90 and 110 vehicles only The rear fog lamp (C0515 on LHD, C2120 on RHD) – 130 vehicles only The trailer socket (C0499).

All except the trailer socket are earthed on B wires.