Lights on Alarm Description

The lights on alarm in the instrument pack operates when the driver's door is open and the side lamps are on. The system uses inputs from:
- The driver's door switch
- The lighting switch

A serial data bus allows communication between the the Body Control Unit
(BCU), the Intelligent Driver's Module (IDM) and the instrument pack.

Lights On Alarm Supply
Circuit supply
A feed from the battery positive terminal is connected on an R wire to the engine compartment fusebox where it is connected to fusible links 8 and 12 and fuse 13.

A feed from fusible link 12 is connected on an NG wire to the lighting switch. A feed from fuse 13 is connected on a PN wire to pin C0660-13 on the BCU.

A feed from fusible link 8 is connected on an NW wire to the passenger compartment fusebox and from the fusebox to the ignition switch on an N wire.

Ignition switch supply
With the ignition switch in position II the feed from fusible link 8 flows through the ignition switch to the passenger compartment fusebox on a Y wire. The feed continues through fuse 29 in the passenger compartment fusebox and is connected to pin C0660-1 on the BCU by a GU wire.