DTC Troubleshooting: 7

DTC 7:  An Open in the Air Mix Control Motor Circuit

1.Disconnect the air mix control motor 7P connector.

2.Disconnect climate control unit connector B (16P).

3.Check for continuity between following terminals of climate control unit connector B (16P) and the air mix control motor 7P connector.

16P: 7P: 
No. 5 No. 7 
No. 8 No. 5 
No. 9 No. 2 
No. 10 No. 1 
No. 14 No. 3 

 

Is there continuity?


YES - Check for loose wires or poor connections at climate control unit connector B (16P) and at the air mix control motor 7P connector. If the connections are good, substitute a known-good  climate control unit, and recheck. If the symptom/indication goes away, replace the original  climate control unit.n


NO - Repair any open in the wire(s) between the  climate control unit and the air mix control motor.n