Body Control Unit (BCU)

Body Control Unit (BCU)

The BCU (C0662) monitors the condition of all four doors and provides feeds to the following lamps via the passenger compartment fuse box on RU wires if any are opened:

The RH front footwell lamp (C0076) The LH front footwell lamp (C0077) The RH front sill lamp (C1794) The LH front sill lamp (C1795) The LH rear puddle lamp (C2212) The RH front puddle lamp (C2211) The RH rear puddle lamp (C2212) The LH front puddle lamp (C2210) The front interior lamp (C0355) The rear interior lamp (C0357).

All are earthed on N wires.

NOTE: The LH rear and RH rear puddle lamps have the same connector number as they utilise the same harness.

Approach Lamps

When the BCU receives a valid unlocking signal from the remote handset, it will illuminate the approach lamps via the door lamp module. The door lamp module (C0587) is located in the passenger compartment fuse box and provides a feed to the LH (C2291) and RH (C2291) approach lamps on a pair of RG then K wires. Both lamps are earthed on Y then N wires.

NOTE: The LH and RH approach lamps have the same connector number as they utilise the same harness.

Luggage Compartment Lamps

The BCU (C0662) provides a feed to the LH (C0120) and RH (C0119) upper tail door lamps, and the luggage compartment lamp (C2047) on RY wires. The earth path for the lamps is controlled by the tail door tail door motor (C0383).

Map Reading Lamps

The front and rear interior lamps both contain 2 map reading lamps. The BCU (C0662) provides a feed to the front (C0355) and rear (C0357) map reading lamps on a pair of RY wires. When any of the map reading lamp switches are pressed, the switch contacts close allowing current to flow to earth on an N wire to illuminate the lamp.