Can someone please tell me what B0361 and B0441 mean?

 

Welcome to the Forum.

Both codes refer to the left air temperature actuators, they are part of the Heating, Ventilation, and Air Conditioning (HVAC) system. Do these codes have a suffix "C" current, or "H" history.

The HVAC module controls interior temperature by commanding the air temperature actuators to move. The HVAC module determines the position of the actuator by monitoring the voltage on a signal circuit. B0361 is set when the module detects a signal voltage that is too low (0.09 volts). (The door is outside of the parameters the HVAC expects.)

A disconnected or broken door may also set this code by allowing the actuator to travel too far. Also the signal voltage might be shorted to ground. (If the signal voltage was shorted to voltage (left side) then B0363 would be set.

As to B0441, has power to the HVAC module been removed? B0441 is set when the HVAC module finds the actuator actual travel range is greater than, or less than its calibrated limits.

B0441 can only be detected by disrupting power to the HVAC module, or by testing with a scan tool. The scan tool could determine if the cause was an obstruction (small range of movement) or missing foam seals (allowing over travel).

Until the B0441 condition is corrected the HVAC will continue to try to recalibrate the actuator each time the ignition switch is turned on.

 

Thanks for the information. The codes both have an H but I've cleared them a couple of times and they come back. Also the driver side vents eventually blow warm air while the passenger side is cold.

 

I bet you don't need the extra heat in Arizona right now. :lol: Getting to the actuators/doors requires removal of the front floor kick-up panel, the Bose module, the inside air temperature sensor duct/muffler, etc.

None of it looks too difficult, but having access to a service manual would be a good idea. The service manual has a fairly detailed procedure. A scan tool would help narrow the range of possible faults.