Passenger's Mode Control Motor Test
Passenger's Mode Control Motor TestNOTE: Before testing, check for HVAC DTCs.
1. Disconnect the 10P connector from the passenger's mode control motor.
NOTE: Incorrectly applying power and ground to the passenger's mode control motor will damage it. Follow the instructions carefully.
2. Connect battery power to the No. 2 terminal of the passenger's mode control motor, and ground the No. 1 terminal; the passenger's mode control motor should run smoothly, and stop at Vent. If it doesn't, reverse the connections; the passenger's mode control motor should run smoothly, and stop at Defrost. When the passenger's mode control motor stops running, disconnect battery power immediately.
3. If the passenger's mode control motor did not run in step 2, remove it, then check the passenger's mode control linkage and doors for smooth movement.
- If the linkage and doors move smoothly, replace the passenger's mode control motor.
- If the linkage or doors stick or bind, repair them as needed.
- If the passenger's mode control motor runs smoothly, go to step 4.
4. Use a digital multimeter with an output of 1 mA or less at the 20 kohms range. With the passenger's mode control motor running as in step 2, check for continuity between the No. 6,7,8 and 9 terminals and the No. 10 terminal individually. There should be continuity for a moment at each terminal as the motor moves past the switch's terminal.
5. If there is no continuity for a moment at each terminal, replace the passenger's mode control motor.