B1341 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1341 – Air Mix Door Two Movement Fault

 

B1341 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1341 Possible Causes

 

Faulty Air Mix Door Two Movement,Air Mix Door Two Movement harness is open or shorted,Air Mix Door Two Movement circuit poor electrical connection

 

B1341 Description

 

The heater and A/C programmer supply voltage to an internal motor which drives the air mix door. Then heater and A/C programmer monitor air mix door position feedback from a sensor on the motor. If the air mix door is requested to move but the feedback voltage does not change, the heater and A/C programmer store the OBDII code B1341. If the air mix door feedback indicates it is near hot or cold extreme, the code will not set. The operation of the air mix door can be evaluated through self-diagnostic as described in test description.