GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 51: SDM, Washer Solvent Level Sensor, Seat Belt Switch and Park Brake Switch


Object Number: 231226  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: Ignition Switch, Reading Lamp, Panel Dimmer Switch
SIR Handling Caution
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Data Link Connector Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Body Control System Connector End Views
Power and Grounding Connector End Views
Power and Grounding Connector End Views
Power and Grounding Connector End Views
Figure 2:

Cell 51: Ignition Switch, Reading Lamp, Panel Dimmer Switch


Object Number: 231229  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: Ambient Light Sensor; Right Rear, Left Rear, Right Front Door Lock Switches
Cell 51: SDM, Washer Solvent Level Sensor, Seat Belt Switch and Park Brake Switch
Handling ESD Sensitive Parts Notice
Power Distribution Schematics
Headlights/Daytime Running Lights (DRL) Schematics
HVAC Compressor Control Schematics
Interior Lights Schematics
Ground Distribution Schematics
Power and Grounding Connector End Views
Body Control System Connector End Views
Power and Grounding Connector End Views
Engine Electrical Connector End Views
Figure 3:

Cell 51: Ambient Light Sensor; Right Rear, Left Rear, Right Front Door Lock Switches


Object Number: 231230  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: DRL Relay and Parklamp Relay
Cell 51: Ignition Switch, Reading Lamp, Panel Dimmer Switch
Handling ESD Sensitive Parts Notice
Power Distribution Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Power and Grounding Connector End Views
Body Control System Connector End Views
Power and Grounding Connector End Views
Figure 4:

Cell 51: DRL Relay and Parklamp Relay


Object Number: 239965  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: Rear Door Jamb Switch, Front Door Dome Switch, RF Door Lock Switch
Cell 51: Ambient Light Sensor; Right Rear, Left Rear, Right Front Door Lock Switches
Power Distribution Schematics
Power Distribution Schematics
Exterior Lights Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Power and Grounding Connector End Views
Body Control System Connector End Views
Figure 5:

Cell 51: Rear Door Jamb Switch, Front Door Dome Switch, RF Door Lock Switch


Object Number: 234933  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: Engine Coolant Level Switch, Horn Switch, and Passlock™ Cylinder
Cell 51: DRL Relay and Parklamp Relay
Handling ESD Sensitive Parts Notice
Power and Grounding Connector End Views
Power and Grounding Connector End Views
Ground Distribution Schematics
Power Distribution Schematics
Figure 6:

Cell 51: Engine Coolant Level Switch, Horn Switch, and Passlockā„¢ Cylinder


Object Number: 231231  Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: Rear Door Jamb Switch, Front Door Dome Switch, RF Door Lock Switch
Handling ESD Sensitive Parts Notice
Power Distribution Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Headlights/Daytime Running Lights (DRL) Schematics
Exterior Lights Schematics
Door Lock/Indicator Schematics
Door Lock/Indicator Schematics
Door Lock/Indicator Schematics
Door Lock/Indicator Schematics
Horn Schematics
Antilock Brake System Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Release Systems Schematics
Power and Grounding Connector End Views
Power and Grounding Connector End Views
Body Control System Connector End Views