The body control system consists of a body control module (BCM) and its associated controls. Battery positive voltage is provided to the BCM from CLSTR fuse in the fuse block - left instrument panel (I/P). The module ground is wired to ground G201. The BCM is wired to the class 2 serial data communication bus as well as discreet input and output terminals to control the functions of the vehicles body .
Power Mode Master
This vehicles BCM functions as the Power Mode Master (PMM). Refer to Power Mode Description and Operation for a complete description of power mode functions.
Body Control Module
The various body control module (BCM) input and output circuits are described in the corresponding functional areas indicated on the BCM electrical schematics. The BCM functions include the following:
| • | Retained accessory power (RAP) audio system only--Refer to Retained Accessory Power (RAP) Description and Operation . |
| • | A/C compressor request--Refer to Air Temperature Description and Operation in HVAC Systems - Manual. |
| • | Remote function control--Refer to Keyless Entry System Description and Operation in Keyless Entry. |
| • | A/C cooling fan--Refer to Air Delivery Description and Operation in HVAC Systems - Manual. |
| • | Exterior and interior lighting control--Refer to Exterior Lighting Systems Description and Operation in Lighting Systems. |
| - | Daytime running lamps (DRL) |
| - | Automatic lighting control |
| - | Fog lamps |
| • | Interior lighting--Refer to Interior Lighting Systems Description and Operation in Lighting Systems. |
| • | Battery rundown protection (inadvertent power)--Refer to Interior Lighting Systems Description and Operation in Lighting Systems. |
| • | Chimes--Refer to Audible Warnings Description and Operation in Instrument Panel, Gages, and Console. |
| - | Key-in-ignition |
| - | Headlamps ON |
| - | Seat belt not fastened |
| - | Turn signal ON |
| - | Park brake warning |
| - | Door ajar warning |
| - | Check gages |
| • | Gage control--Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console. |
| • | Instrument cluster indicator control--Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console. |
| • | Theft deterrent--Refer to Theft Systems Description and Operation in Theft Deterrent. |
| • | Engine coolant level sensing--Refer to Cooling System Description and Operation in Engine Cooling. |
| • | Key-in-ignition sensing--Refer to Audible Warnings Description and Operation in Instrument panel, Gages, and Console. |
| • | Brake fluid level sensing--Refer to Brake Warning System Description and Operation in Hydraulic Brakes. |
| • | Parking brake state sensing--Refer to Brake Warning System Description and Operation in Hydraulic Brakes. |
| • | Rear compartment interface--Refer to Power Door Locks Description and Operation in Doors. |
| • | Horn interface--Refer to Horns System Description and Operation in Horns. |
| • | Door lock interface--Refer to Power Door Locks Description and Operation in Doors. |
| • | Bulb check--Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console. |
| • | Enhanced Traction System (ETS) (Pontiac Only)--Refer to ABS Description and Operation in Antilock Brake System. |
| • | A/T shift lock control--Refer to Automatic Transmission Shift Lock Control Description and Operation in Shift Lock Control. |
