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GMC Truck
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1990
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Safari Van M L4-151 2.5L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Brakes and Traction Control
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Electronic Brake Control Module
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Locations
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Rear Wheel Antilock (RWAL) Module
Rear Wheel Antilock (RWAL) Module
RWAL ECU And Isolation/Dump Valve:
The Electronic Brake Control Module
(ECBM)
is mounted next to the master cylinder.