DTC I
DTC indicator light I: An Open in the Air Mix Control Motor Circuit1. Test the air mix control motor.
Is the air mix control motor OK?
YES - Go to step 2.
NO - Replace the air mix control motor.
2. Disconnect the air mix control motor 7P connector.
3. Disconnect climate control unit connector B (30P), and gauge assembly connector A (30P).
4. Check for continuity between following terminals of climate control unit connector B (30P) and the air mix control motor 7P connector.
30P: 7P:
No. 3 No. 5
No. 10 No. 1
No. 11 No. 2
No. 17 No. 3
No. 23 No. 7
Is there continuity?
YES - Check for loose wires or poor connections at climate control unit connector B (30P) and at the air mix control motor 7P connector. If the connections are good, substitute a known-good air mix control motor, and recheck. If the symptom/indication goes away, replace the original air mix control motor. If the symptom/indication continues, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.
NO - Repair any open in the wire(s) between the climate control unit, the gauge assembly, and the air mix control motor.