When the side lamps are switched on, the interior controls and gauges are illuminated so they can be easily located during night driving. Interior illumination is not controlled by the ignition switch.
Operation
Feed from the positive battery terminal is connected to fusible link 1 (C632-1) of the engine compartment fuse box by a brown wire. Current flows through fusible link 1 (C907-1) and onto the lighting switch (C041-1) on a brown wire. With the lighting switch in either the side or head lamp position (C041-2), current will flow to fuse 16 of the passenger compartment fuse box (C580-31) on a red wire. Fuse 16 of the passenger compartment fuse box (C580-32) supplies a feed to the following;
- Speedometer (C927-1 & C926-1) on a red/white wire.
- Fuel gauge (C924-1) on a red/white wire.
- Engine coolant temperature gauge (C735-1) on a red/white wire.
- Cigar lighter (C074-1) on a red/orange wire.
- Clock (C095-1) on a red/white wire.
All of the above are connected in parallel and are earthed on black wires.