Air Mix Damper Control Servo Motor Circuit Driver Side
Table of contents
B1446 LEXUS Possible Causes
- Faulty Air Mix Damper Control Servo Motor
- Air Mix Damper Control Servo Motor harness is open or shorted
- Air Mix Damper Control Servo Motor circuit poor electrical connection
- Faulty Air Conditioning Amplifier
How do I fix code B1446 LEXUS?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1446 LEXUS code
The cost of diagnosing the B1446 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1446 LEXUS Description
The air mix damper servo sends pulse signals to indicate the damper position to the Air Conditioning Amplifier. The Air Conditioning Amplifier activates the motor (normal or reverse) based on these signals to move the air mix damper (driver seat) to the appropriate position. This adjusts the amount of air passing through the heater core after passing the evaporator and controls the temperature of the blown air.