Body Control System Schematics. Chevrolet Blazer - 2WD 2003

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 Body and Accessories 🢒 Body Control System 🢒 Body Control System Schematics

Figure 1:	Power and Ground Master Electrical Component List Body Control System Description and Operation Controlled/Monitored Subsystem References HVAC and CRUISE Fuses HVAC and CRUISE Fuses Ign ACC, RUN and RAP Bus Bar TURN, SIR and GAUGES Fuses TURN, SIR and GAUGES Fuses ILLUM, STG WHL ILLUM, and PARK LP Fuses ILLUM, STG WHL ILLUM, and PARK LP Fuses STUD 2, ABS, HDLP W/W, TBC and RR W/W Fuses RAP Relay and Ignition Switch B+ Bus Bar Class 2 Serial Data G200, G201, G207, and G300- Pickup and Crew Cab
Figure 2:	Controlled/Monitored Subsystem References Master Electrical Component List Body Control System Description and Operation Interior Lights References Power and Ground Brake Switch Input (4.3L) and Tow/Haul Switch Input Gages Output Horns Schematics Power, Ground and Passlock Sensor Door Handle Switch Inputs BCM Inputs and Outputs Keyless Entry Schematics TBC, PARK LPS, GAGES and CRUISE Fuses Brake Warning System Schematics Seat Belt Schematics
Figure 3:	Interior Lights References Master Electrical Component List Body Control System Description and Operation Exterior Lights References Controlled/Monitored Subsystem References LED Dimming Signal Headlamp Switch, Ambient Light Sensor and BCM CTSY LP Fuse and Courtesy Lamp Relay Inadvertent Power Relay and Front Door Jamb Switches Rear Door Jamb and Liftglass Ajar Jamb Switches LED Dimming Signal Inadvertent Power Relay and Front Door Jamb Switches
Figure 4:	Exterior Lights References Master Electrical Component List Body Control System Description and Operation Interior Lights References Front Flash-To-Pass Switch, DRL Relay (ZR2) and BCM Headlamp Switch, Ambient Light Sensor and BCM Park Lamp Control Rear - Export Headlamp Switch, Ambient Light Sensor and BCM Instrument Cluster Turn Signal Indicators