gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Rear Wheel Antilock (RWAL) Module|Page 4326 > < ABS - 4WAL Deactivated, Code 66 (Pump Motor Relay) Set
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Electronic Brake Control Module: Locations
Rear Wheel Antilock (RWAL) Module

RWAL ECU And Isolation/Dump Valve

The Electronic Brake Control Module (ECBM) is mounted next to the master cylinder.

Rear Wheel Antilock (RWAL) Module|Page 4326 > < ABS - 4WAL Deactivated, Code 66 (Pump Motor Relay) Set