Interior Lighting

�?�WInterior Lighting:

WIRING DIAGRAM

Interior Lighting: Component Location:

COMPONENT LOCATION VIEW

Interior Lighting: Component ID:

COMPONENT ID
22A Main fuse board in the dashboard.
50 Rear roof lamp.
51 Front roof lamp.
53 Interior lighting switch in centre console between the front seats.
54 Door switch, interior lighting, at the bottom of the door openings.
359 Illuminated vanity mirror/reading lamp, left-hand side, under the sun visor.
360 Illuminated vanity mirror/reading lamp, right-hand side, under the sun visor.
500 ICE control module
LHD: above main relay board in dashboard
RHD: behind main relay board in dashboard

10-Pin Connector
H10-4 In the luggage compartment behind the left-hand wheel housing.

33-Pin Connectors
H33-1 Grey connector on the bracket below the left-hand A pillar.
H33-3 Blue connector on the bracket below the left-hand A pillar.

Grounding Points
G33P Grounding point, connector bracket (Power) below the left-hand A pillar.
G33S Grounding point, connector bracket (Signal) below the left-hand A pillar.
G34S Grounding point, control module bracket (Signal) below the right-hand A pillar.

DESCRIPTION OF OPERATION
The car's interior lighting is controlled by the ICE control module which grounds the roof lamps, reading lamps and switch.

The interior lighting is supplied with current (+30 circuit) via fuse 4.

The interior lighting is switched on when a door is opened, causing the door switch to close and ground pin 44 (driver's door) or pin 67 (passenger doors) of the ICE control module.

The ICE grounds the lamps according to the position of the switch:

Position 1: (front position) Both roof lamps light up regardless of the position of the ignition switch or whether the ignition key has been removed and regardless of the position of the door.

Position 2: (centre position) Both roof lamps light up when any door is opened or when the key is removed from the ignition switch. (They remain alight as long as the door is open or for a maximum of 20 seconds if the door is closed. The interior lighting is then dimmed).

Position 3: (rear position) Only the rear roof lamp lights up, regardless of the position of the ignition switch or whether the ignition key has been removed and regardless of the position of the door.

The ICE control module is also responsible for controlling the timing of the interior lighting.

Reading Lamps:
The reading lamps can always be operated, regardless of the position of the switch, the position of the ignition switch and whether the doors are open or closed.

FAULT DIAGNOSIS HINTS
1. Check that fuse 4 is intact and supplied with current.
2. Check that lamps 50, 51, 359 and 360 are OK and supplied with current.
3. Check door switches, connectors, wiring and ground connections.