Go to step 11.
11. Check for continuity between climate control unit connector A (40P) terminals No. 6 and No. 11.
Is there continuity?
YES -
Repair a short in the wires.?
NO -
Go to step 12.
12. Turn the ignition switch to ON (II), and measure the voltage between climate control unit connector A (40P) terminal No. 11 and body
ground.
Is there any voltage?
YES -
Repair a short to power in the wire between the climate control unit and the driver's air mix control motor. This short may also damage the climate
control unit. Repair a short to power before replacing the climate control unit.?
NO -
Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit See:
Heating and Air Conditioning/Control Assembly/Service and Repair/Climate Control Unit Removal/Installation.?
13. Turn the ignition switch to LOCK (0), and disconnect the climate control unit connector A (40P).
14. Disconnect these items:
- Driver's air mix control motor
- Passenger's air mix control motor
- Rear air mix control motor
- Humidity/in-car temperature sensor
- A/C pressure sensor
15. Check for continuity between climate control unit connector A (40P) terminal No. 6 and body ground.
