B1223 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1223 – Problem In The Rear Blower Motor Circuit


B1223 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B1223 Possible Causes


Faulty Rear Power Transistor,Faulty Rear Blower Motor Relay,Faulty Rear Blower Motor,Rear Blower Motor harness is open or shorted,Rear Blower Motor circuit poor electrical connection,Faulty Rear Climate Control Unit,Faulty A/C Control Panel


B1223 Description


The Rear Climate Control Unit monitors the Rear Blower Motor. The Rear Climate Control Unit sets the OBDII code when the Rear Blower Motor is not to factory specifications.