GM Service Manual Online
For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2005 🢒 C-Series Medium Duty Truck C6/7/8 - Mexico 🢒 Engine 🢒 Engine Exhaust 🢒 Engine Exhaust Brake Schematics
Figure 1:

Underhood Lamp
Object Number: 658853 Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Ashtray Lamp, Power Window and Door Lock Controls Illumination
Battery and Underhood Fuse Block
ECM-B, Horn
Figure 2:

Engine Brake Enable, Indicator and Valve
Object Number: 651585 Size: FS
Master Electrical Component List
Exhaust System Description
Engine Brake Relay and ICM Interface
Engine Brake Relay and ICM Interface
Engine Brake Relay and ICM Interface
Engine Brake Relay and ICM Interface
S219
CHAS, Axle, Circuit Breakers
S110, S112