C1931 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1931 – Air Suspension Front Compressor Relay Circuit Short To Battery

 

C1931 Possible Symptoms

 

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

 

C1931 Possible Causes

 

Faulty Air Suspension Front Compressor Relay,Air Suspension Front Compressor Relay harness is open or shorted,Air Suspension Front Compressor Relay circuit poor electrical connection,Faulty Air Suspension Module

 

C1931 Description

 

The Air Suspension Module monitors the Air Suspension Front Compressor Relay. The Air Suspension Module sets the OBDII code when the Air Suspension Front Compressor Relay is not to factory specifications.