GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Pickup - 4WD 🢒 Body and Accessories 🢒 Body Control System 🢒 Brake Warning System Schematics
Figure 1:

Brake Warning Lamp Control (all except 15000lb GVW)
Object Number: 567056 Size: FS
Hydraulic Brakes Components
Brake Warning System Circuit Description
Brake Warning Lamp Control (15000lb GVW)
Handling ESD Sensitive Parts Notice
G200 (1 of 4)
GAUGES Fuse
GAUGES Fuse
G105 (1 of 2)
Handling ESD Sensitive Parts Notice
Figure 2:

Brake Warning Lamp Control (15000lb GVW)
Object Number: 567065 Size: FS
Hydraulic Brakes Components
Brake Warning System Circuit Description
Brake Warning Lamp Control (all except 15000lb GVW)
G200 (1 of 4)
GAUGES Fuse
G105 (1 of 2)
Handling ESD Sensitive Parts Notice