GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 41: Brake Warning Circuit


Object Number: 257962  Size: FS
Hydraulic Brakes Components
Brake Warning System Description
Cell 41: Brake Warning Relays
Cell 10: Junction Block
Cell 11: GAUGES, TURN/BU, and TAC fuses
Cell 81: Indicators
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Cell 41: Brake Warning Relays
Cell 14: G101, G109, and G110
Cell 14: G104
Cell 44: Antilock Brake Warning Circuit
Cell 81: Indicators
Cell 18: Cavity D
Cell 14: G200
Cell 41: Brake Warning Relays
Figure 2:

Cell 41: Brake Warning Relays


Object Number: 257963  Size: FS
Hydraulic Brakes Components
Brake Warning System Description
Cell 41: Brake Warning Circuit
Cell 10: Junction Block
Cell 41: Brake Warning Circuit
Cell 46: Alarm Circuit
Cell 14: G101, G109, and G110
Cell 14: G104
Cell 14: G300 and G400
Cell 41: Brake Warning Circuit
Cell 14: G200
Cell 46: Release Pump Circuit
Cell 46: Alarm Circuit