C 2500 Truck 2WD V8-350 5.7L VIN L 4-bbl (1985)
![background image](/gmc/c_2500_truck_2wd/v8-350_5.7l_vin_l_4-bbl/Page-1179009.png)
Fig. 14
Rear Wheel Anti-Lock (RWAL) Brake System Code 7 diagnosis. Shorted isolation valve or faulty ECU
Fig. 14
Rear Wheel Anti-Lock (RWAL) Brake System Code 7 diagnosis. Shorted isolation valve or faulty ECU