C0657 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0657 – Level Control Compressor Circuit Low


C0657 Possible Symptoms


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


C0657 Possible Causes


Faulty Level Control Compressor,Level Control Compressor harness is open or shorted,Level Control Compressor circuit poor electrical connection


C0657 Description


The Automatic Level Control compressor is switched ON and OFF using an Electronic Level Control (ELC) compressor relay which is controlled by the Electronic Suspension Control (ESC) module. The ESC module circuitry provides a switched path to ground whenever compressor activity is required. This drive circuit is also continually monitored to determine if the voltage level agrees with the commanded state.