B2453 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2453 – Auxiliary Heater Blower Fan Circuit Short to Ground


B2453 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B2453 Possible Causes


Faulty Auxiliary Heater Blower Fan,Auxiliary Heater Blower Fan harness is open or shorted,Auxiliary Heater Blower Fan circuit poor electrical connection


B2453 Description


The Powertrain Control Module (PCM) monitors the Auxiliary Heater Blower Fan. The PCM sets the OBDII code when the Auxiliary Heater Blower Fan is not to factory specifications.