C15D9 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C15D9 – Air Suspension Low Air Mass

 

C15D9 Possible Symptoms

 

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

 

C15D9 Possible Causes

 

Low Air Mass,Air Suspension System Leak,Faulty Air Suspension Control Module (ASCM)

 

C15D9 Description

 

The Air Suspension Control Module (ASCM) monitors the Air Mass. The ASCM sets the OBDII code when it detects that the measured air mass is below the threshold.