insuralife

Help..
Heater door control (temperature control) drive quit. Now this little black box containing a motor, gears and an arm, is attached to the box door that allows the hot air into the cabin. Does this unit go bad, or is it more likely in the control head. Everything seems to work correctly, switching outlets for the air, and fan speed. There is just NO temperature control.. Using a test light, there seems extremely low voltages on the motor. The light is quite dim (like me!)..
Any suggestions?

insuralife

ANy suggestions appreciated.. Lexus of Clearwater tells me the servo is $250.00 and non returnable!

salimshah

Plenty of reading ... search on 'servo'

Salim

insuralife

Thanks.... And the parts supplier, Sewell, is $100 cheaper than the dealership on the servo and $200 cheaper on the brakelight failure sensor!
Servo I need; brake lights, not so much!! Ok, just kidding!

HadYurPhil

Usually the little plastic worm gear on the motor gets loose on the motor shaft. E-Z repair.. just glue or otherwise secure the worm gear to the motor shaft. I repaired mine by roughing up the motor shaft so that the worm gear was a tight fit. Works fine now.

insuralife

Hey I'll try that.. Can you believe that that whole part is built around a $2.75 electric motor??

bob2200

It has lasted over 10 years. If they built cars that lasted forever, they'd soon be out of business.