Check for continuity between the No. 15 terminal of climate control unit connector A (22P) and the No. 2 terminal of the evaporator temperature sensor 2P connector. Is there continuity?
YES | - | Go to Step 9 .
NO | - | Repair open in the wire between the climate control unit and the evaporator temperature sensor.■
Perform the A/C communication in the Self-Diagnostic Function to obtain the IS-BUS communication varification status. Is the communication OK?
YES | - | Check for loose wire or poor connections at climate control unit connector A (22P) and at the evaporator temperature sensor 2P connector. If the connections are good, substitute a known-good climate control unit and printed circuit board, and recheck. If the symptom/indication goes away, replace the original climate control unit and printed circuit board.■
NO | - | Check for loose wire or poor connections at climate control unit connector A (22P) and at the evaporator temperature sensor 2P 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 .■