C0078 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C0078 – Tire Diameter


C0078 Possible Symptoms


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


C0078 Possible Causes


Tire pressure too low or too high,Wrong tire diameter


C0078 Description


The Anti-Lock Brake System (ABS) Module monitors the Tire Diameter. The ABS Module sets the OBDII code when the Tire Diameter is not to factory specifications.