S15/T15 2WD P/U L4-151 2.5L (1985)
![background image](/gmc/s15/t15_2wd_p/u/l4-151_2.5l/Page-1164004.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