GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 Body 🢒 Wiring Systems 🢒 Antilock Brake System Schematics
Figure 1:

EBCM Power, Grounding, DLC, and Indicator Lamps
Object Number: 1452980 Size: FS
EBCM Stop Lamp Switch and Wheel Speed Inputs
ABS, Blower, Stop-Haz, and IGN B Fuses, and Igntion Switch
Brake, Curise, SEO TP-2, and Htr-Fuses
ABS, Blower, Stop-Haz, and IGN B Fuses, and Igntion Switch
G203
Master Electrical Component List
ABS Description and Operation
EBCM Stop Lamp Switch and Wheel Speed Inputs
G105, L18, 1 of 2, All Except Ignition Coils
Data Link Connector (DLC) Schematics
Figure 2:

EBCM Stop Lamp Switch and Wheel Speed Inputs
Object Number: 1452983 Size: FS
Master Electrical Component List
ABS Description and Operation
EBCM Power, Grounding, DLC, and Indicator Lamps
Cruise Control Input Circuits