C 3500 Truck 2WD V8-305 5.0L (1986)
![background image](/gmc/c_3500_truck_2wd/v8-305_5.0l/Page-1141004.png)
Fig. 9
Rear Wheel Anti-Lock (RWAL) Brake System Code 2 diagnosis. Open isolation valve or ECU malfunction
Fig. 9
Rear Wheel Anti-Lock (RWAL) Brake System Code 2 diagnosis. Open isolation valve or ECU malfunction