C1838 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1838 – Charging System Fault
C1838 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1838 Possible Causes
Faulty Alternator,Alternator harness is open or shorted,Alternator circuit poor electrical connection
The Anti-Lock Brake System (ABS) Module monitors the Charging System. The ABS Module sets the OBDII code when the Charging System is not to factory specifications.