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

Dash Integration Module (DIM) -- Power, Ground and Serial Data


Object Number: 474558  Size: FS
Body Control Module Components
Body Control System Circuit Description
Dash Integration Module (DIM) - Ignition Switch Inputs
Handling ESD Sensitive Parts Notice
Rear Fuse Block Battery Voltage
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
Rear Fuse Block Battery Voltage
Body Control System Connector End Views
Data Link Connector Schematics
G201 - Steering Column
Figure 2:

Dash Integration Module (DIM) -- Ignition Switch Inputs


Object Number: 474559  Size: FS
Body Control Module Components
Body Control System Circuit Description
Dash Integration Module (DIM) - Lighting Inputs and Outputs
Dash Integration Module (DIM) - Power, Ground and Serial Data
Handling ESD Sensitive Parts Notice
Rear Fuse Block Battery Voltage
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
Ignition Switch
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
Ignition Feed to Underhood and Rear Fuse Blocks
Ignition Switch
Body Control System Connector End Views
Ignition Switch
Figure 3:

Dash Integration Module (DIM) -- Lighting Inputs and Outputs


Object Number: 474560  Size: FS
Body Control Module Components
Body Control System Circuit Description
Dash Integration Module (DIM) - Inputs and Outputs
Dash Integration Module (DIM) - Ignition Switch Inputs
Handling ESD Sensitive Parts Notice
Headlights Schematics Domestic
Interior Lights Schematics w/o V4U/B9Q
Fog Lights Schematics
Body Control System Connector End Views
Headlights Schematics Domestic
Headlights Schematics Domestic
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
G104 - Lamps and Other Items
Ground Distribution Schematics
Figure 4:

Dash Integration Module (DIM) -- Inputs and Outputs


Object Number: 474561  Size: FS
Body Control Module Components
Body Control System Circuit Description
Instrument Panel Integration Module (IPM) - Power, Ground and Serial Data
Dash Integration Module (DIM) - Lighting Inputs and Outputs
Handling ESD Sensitive Parts Notice
Column/Ignition Lock Schematics
Steering Wheel Controls Schematics
Horn Schematics
Theft Deterrent System Schematics
Exterior Lights Schematics Domestic w/o V92/V4U/B9Q
Theft Deterrent System Schematics
HVAC Air Delivery/Temperature Control Schematics
Wiper/Washer System (Pulse) Schematics
Interior Lights Schematics w/o V4U/B9Q
HVAC Compressor Control Schematics
Body Control System Connector End Views
Figure 5:

Instrument Panel Integration Module (IPM) -- Power, Ground and Serial Data


Object Number: 474562  Size: FS
Body Control Module Components
Body Control System Circuit Description
Instrument Panel Integration Module (IPM) - HVAC Inputs and Outputs
Dash Integration Module (DIM) - Inputs and Outputs
Handling ESD Sensitive Parts Notice
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
Rear Fuse Block Battery Voltage
ELC, NIGHT VISION, HVAC, and ABS Fuses
Interior Lights Dimming Schematics
ELC, NIGHT VISION, HVAC, and ABS Fuses
Body Control System Connector End Views
Data Link Connector Schematics
G201 - Steering Column
Ground Distribution Schematics
Figure 6:

Instrument Panel Integration Module (IPM) -- HVAC Inputs and Outputs


Object Number: 474563  Size: FS
Body Control Module Components
Body Control System Circuit Description
Instrument Panel Integration Module (IPM) - Inputs and Outputs
Instrument Panel Integration Module (IPM) - Power, Ground and Serial Data
Handling ESD Sensitive Parts Notice
HVAC Air Delivery/Temperature Control Schematics
HVAC Air Delivery/Temperature Control Schematics
Body Control System Connector End Views
HVAC Blower Control Schematics
Figure 7:

Instrument Panel Integration Module (IPM) -- Inputs and Outputs


Object Number: 474564  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Integration Module (RIM) - Power, Ground and Serial Data
Instrument Panel Integration Module (IPM) - HVAC Inputs and Outputs
Handling ESD Sensitive Parts Notice
Interior Lights Schematics w/o V4U/B9Q
Headlights Schematics Domestic
Interior Lights Schematics w/o V4U/B9Q
Headlights Schematics Domestic
Antilock Brake System Schematics
Instrument Cluster Schematics
Fog Lights Schematics
Night Vision Schematics
Interior Lights Schematics w/o V4U/B9Q
Headlights Schematics Domestic
Headlights Schematics Domestic
Audible Warnings Schematics
Release Systems Schematics
Body Control System Connector End Views
Figure 8:

Rear Integration Module (RIM) -- Power, Ground and Serial Data


Object Number: 474565  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Integration Module (RIM) - Lighting and Other Inputs and Outputs
Instrument Panel Integration Module (IPM) - Inputs and Outputs
Handling ESD Sensitive Parts Notice
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
SIR, VENT SOL, and IGN 1 Fuses
SIR, VENT SOL, and IGN 1 Fuses
Body Control System Connector End Views
SIR, VENT SOL, and IGN 1 Fuses
Data Link Connector Schematics
G401
Figure 9:

Rear Integration Module (RIM) -- Lighting and Other Inputs and Outputs


Object Number: 474566  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Integration Module (RIM) - Level Control and Other Inputs and Outputs
Rear Integration Module (RIM) - Power, Ground and Serial Data
Handling ESD Sensitive Parts Notice
Interior Lights Schematics w/o V4U/B9Q
Cigar Lighter/Power Outlet Schematics
Interior Lights Schematics w/o V4U/B9Q
Backup Lamp Schematics
Automatic Day-Night Mirrors Schematics
Body Control System Connector End Views
Release Systems Schematics
Body Rear End Schematics
Door Lock/Indicator Schematics
Theft Deterrent System Schematics
Retained Accessory Power (RAP) Schematics
Figure 10:

Rear Integration Module (RIM) -- Level Control and Other Inputs and Outputs


Object Number: 474567  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Heater and A/C Control Module - DeVille/DHS
Rear Integration Module (RIM) - Lighting and Other Inputs and Outputs
Handling ESD Sensitive Parts Notice
Automatic Level Control Schematics
Defogger Schematics w/o B9Q
Park Brake System Schematics
Column/Ignition Lock Schematics
Exterior Lights Schematics Domestic w/o V92/V4U/B9Q
Rear Parking Assist Schematics
Figure 11:

Rear Heater and A/C Control Module -- DeVille/DHS


Object Number: 474568  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Heater and A/C Control Module - DTS
Rear Integration Module (RIM) - Level Control and Other Inputs and Outputs
Handling ESD Sensitive Parts Notice
Interior Lights Dimming Schematics
Data Link Connector Schematics
Rear Fuse Block Battery Voltage
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
IGN 3 Fuse
IGN 3 Fuse
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
G200
HVAC Air Delivery/Temperature Control Schematics
HVAC Blower Control Schematics
Figure 12:

Rear Heater and A/C Control Module -- DTS


Object Number: 474569  Size: FS
Body Control Module Components
Body Control System Circuit Description
Rear Heater and A/C Control Module - DeVille/DHS
Rear Integration Module (RIM) - Level Control and Other Inputs and Outputs
Handling ESD Sensitive Parts Notice
Interior Lights Dimming Schematics
Data Link Connector Schematics
Rear Fuse Block Battery Voltage
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
IGN 3 Fuse
IGN 3 Fuse
Power and Grounding Connector End Views Fuse Blocks and Ignition Switch
G200
HVAC Air Delivery/Temperature Control Schematics
HVAC Blower Control Schematics