C15AD Code: Meaning, Causes, and Symptoms | OBD2 Codes
C15AD – Ride Height System Performance Or Incorrect Operation
C15AD Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C15AD Possible Causes
Blown Air Suspension Compressor Relay,Faulty Air Suspension Compressor,Air Suspension Compressor harness is open or shorted,Air Suspension Compressor circuit poor electrical connection
The Air Suspension Control Module (ASCM) monitors the Ride Height System. The ASCM sets the OBDII code when it checks for ride height sensor movement during the middle of a level change. If it does not see this movement then this Diagnostic Trouble Code (DTC) is set.