GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
HUMMER
🢒
2003
🢒
H2
🢒
Body and Accessories
🢒
Lighting Systems
🢒 Body Control System Schematics
Figure
1:
Power, Ground, and Serial Data Circuits
Master Electrical Component List
Body Control System Description and Operation
Power Windows and Door Locks, HVAC, and A-T Controls
PCMB, TREC, IPC/DIC, TBC BATT, SEO B1, SEO B2, and HVAC/ECAS Fuses
B/U LP, O2A, O2B, TBC IGN1, TRL B/U, and BTSI Fuses
LBEC 1, LBEC 2, INFO, PDM, AUX PWR, DDM, LOCKS, TBC 2A, 2B, and 2C Fuses, and LT DOOR Circuit Breaker
WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses
WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses
Power, Ground, DLC, and Splice Pack SP205
G200
G200
Figure
2:
Power Windows and Door Locks, HVAC, and A/T Controls
Master Electrical Component List
Body Control System Description and Operation
Interior Lights, Horns, Entertainment, amd Theft Deterrent
2003 N Truck Body Cont. Mod Schem (Power, Ground, and Serial Data Citcuits)
Door Lock./Indicator Schematics
Defogger Schem
Rear Door Windows
Temperature Controls and Sunload Sensors
Rear Door Windows
Power, BCM, PCM, Class 2, Stop Lamp Switch, Tow-Haul Switch, and Shift Solenoids
Door Lock./Indicator Schematics
Figure
3:
Interior Lights, Horns, Entertainment, and Theft Deterrent
Master Electrical Component List
Body Control System Description and Operation
Headlamps, Park Lamps, and DRL Controls, Park Brake Signal
Power Windows and Door Locks, HVAC, and A-T Controls
Horns Schematics
Audible Warnings Schematics
Interior Light Controls, BCM, Door Ajar Switches
Courtesy Lamps - Headliner Front, Center, and Rear
Courtesy Lamps - Footwells, Rear Doors, and B-Pillars
Interior Light Controls, BCM, Door Ajar Switches
Audible Warnings Schematics
Power, Ground, DLC, and Steering Wheel Controls
Figure
4:
Headlamps, Park Lamps, and DRL Controls, Park Brake Signal
Master Electrical Component List
Body Control System Description and Operation
Interior Lights Dimming, Backup Lights, and Sunroof Power
Interior Lights, Horns, Entertainment, amd Theft Deterrent
Headlamp Controls, Switches, Ambient Light Sensor
DRL Lamps and Control Circuits
Dimmer Controls, IP Cluster Illumination, and Switch Indicators
Park Lamp Relay, Front Park and Marker Lamps
DRL Lamps and Control Circuits
Headlamp Controls, Switches, Ambient Light Sensor
Figure
5:
Interior Lights Dimming, Backup Lights, and Sunroof Power
Master Electrical Component List
Body Control System Description and Operation
Headlamps, Park Lamps, and DRL Controls, Park Brake Signal
Dimmer Controls, IP Cluster Illumination, and Switch Indicators
Backup Lamps
Power Sunroof Schematics
Brake Warning System Schematics
Backup Lamps
Dimmer Controls, IP Cluster Illumination, and Switch Indicators