B2428 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2428 – A/C Post Heater Sensor #2 Circuit Failure

 

B2428 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B2428 Possible Causes

 

Faulty A/C Post Heater Sensor #2,A/C Post Heater Sensor #2 harness is open or shorted,A/C Post Heater Sensor #2 circuit poor electrical connection

 

B2428 Description

 

The Body Control Module (BCM) monitors the A/C Post Heater Sensor #2. The BCM sets the OBDII code when the A/C Post Heater Sensor #2 is not to factory specifications.