Body Control Module
WARNING: This page is about a different car, the 2007 Saturn Ion Red Line, 2007 Saturn Ion 3, and 2007 Saturn Ion 2. However, it is still accessible from the selected car via links, so may be relevant.
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:
- A/C compressor request-Refer to Air Temperature Description and Operation .
- A/C cooling fan-Refer to Air Delivery Description and Operation .
- Battery rundown protection (inadvertent power)-Refer to Interior Lighting Systems Description and Operation .
- Brake fluid level sensing-Refer to Brake Warning System Description and Operation .
- Bulb check-Refer to Instrument Cluster Description and Operation .
- Chimes-Refer to Audible Warnings Description and Operation
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- Check gages
- Door ajar warning
- Headlamps ON
- Key-in-ignition
- Oil reset
- Park brake warning
- Seat belt not fastened
- Turn signal ON
- Door lock interface-Refer to Power Door Locks Description and Operation .
- Electronic steering control (ESC)-Refer to Power Steering System Description and Operation .
- Exterior and interior lighting control-Refer to Exterior Lighting Systems Description and Operation
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- Automatic lighting control
- Daytime running lights (DRL)
- Fog lamps
- Park brake lights
- Turn hazard lamps
- Gage control-Refer to Instrument Cluster Description and Operation .
- Horn interface-Refer to Horns System Description and Operation .
- Instrument cluster indicator control-Refer to Instrument Cluster Description and Operation .
- Interior lighting-Refer to Interior Lighting Systems Description and Operation .
- Key-in-ignition sensing-Refer to Audible Warnings Description and Operation .
- Parking brake state sensing-Refer to Brake Warning System Description and Operation .
- Retained accessory power (RAP)-Refer to Retained Accessory Power (RAP) Description and Operation .
- Rear compartment interface-Refer to Power Door Locks Description and Operation .
- Rear defogger-Refer to Rear Window Defogger Description and Operation .
- Remote function control-Refer to Keyless Entry System Description and Operation .
- Seat belt use sensing-Refer to Seat Belt System Description and Operation .
- Theft deterrent-Refer to Theft Systems Description and Operation .
- Washer solvent level sensing-Refer to Wiper/Washer System Description and Operation .
- Wiper/washer-Refer to Wiper/Washer System Description and Operation .