C1250 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1250 – Left Rear ISO Valve Circuit Failure

 

C1250 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C1250 Possible Causes

 

Faulty Left Rear ISO Valve,Left Rear ISO Valve harness is open or shorted,Left Rear ISO Valve circuit poor electrical connection

 

C1250 Description

 

The Anti-Lock Brake System (ABS) Module monitors the Left Rear ISO Valve. The ABS Module sets the OBDII code when the Left Rear ISO Valve is not to factory specifications.