Head/side and Tail Lamps Land Rover Range Rover L322

General

Operation of the head, side, tail, and side marker (NAS vehicles only) is controlled by the Light Check Module (LCM). The LCM receives inputs from other systems via the I Bus.

Two headlamp systems are available; Halogen or bi-xenon. The two types of headlamps share a common lense.

Note. NAS vehicles are fitted with headlamp lenses marked with a Department of Transport (DOT) rating.

The bi-xenon headlamps illuminate when an arc of electrical current is established between two electrodes within the bulb. The xenon gas sealed in the bulb reacts to the electrical exitation and the heat generated by the current flow. The causes the gas to produce a blue/white light.

For more details of headlamp operation, refer to LIGHTING .

Power Distribution

Feed from the positive battery terminal (C0192) is supplied to fuse 53, fusible link 3, and fusible link 4 on an R wire. All are located in the passenger compartment fuse box. Fusible link 3 (C0589) and fusible link 4 (C0590) provide constant battery feeds to the Light Check Module (LCM) (C0937 & C2039 respectively) on a pair of R wires. The LCM (C2039) is earthed on an N wire.

Fuse 53 (C0583) provides a constant battery feed to the ignition switch (C0099 on Td6 vehicles, C0028 on V8 vehicles) on an R wire. When the ignition switch is turned to the 'auxiliary' position, current flows across the switch (C0099 on Td6 vehicles, C0028 on V8 vehicles) to fuse 9 of the passenger compartment fuse box (C0585) on a PB wire. Fuse 9 (C0587) provides an auxiliary ignition feed to the LCM (C2040) on a PY wire.

When the ignition switch is turned to the 'ignition' position, current flows across the switch (C0099 on Td6 vehicles, C0028 on V8 vehicles) to fuse 4 of the passenger compartment fuse box (C0585) on a G wire. Fuse 4 (C0587) provides an ignition feed to the LCM (C2040) on a GS wire.

See also:
• LIGHTING