B1200 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1200 – Audio-HVAC Display Module


B1200 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1200 Possible Causes


Faulty Audio-HVAC Display Module,Audio-HVAC Display Module harness is open or shorted,Audio-HVAC Display Module circuit poor electrical connection


B1200 Description


The Multiplex Control Unit Module (MICU) monitors the Audio-HVAC Display Module. The MICU sets the OBDII code when the Audio-HVAC Display Module is not to factory specifications.