Wednesday, June 10, 2020

2010 Acura Truck MDX V6-3.7L Page 20


YES -



Repair a short in the wires.?



NO -



Go to step 11.



11. Turn the ignition switch to ON (II), and measure the voltage between body ground and climate control unit connector A (40P) terminal No.



26.



Is there any voltage?



YES -



Repair a short to power in the wire between the climate control unit and the A/C pressure sensor. This short may also damage the climate control



unit. Repair a short to power before replacing the climate control unit.?



NO -



Go to step 12.



12. Turn the ignition switch to LOCK (0).



13. Reconnect climate control unit connector A (40P).



14. Turn the ignition switch to ON (II).



15. Measure the voltage between climate control unit connector A (40P) terminals No. 6 and No. 8, and between climate control unit connector A



(40P) terminals No. 8 and No. 26.



Is there about 5 V?



YES -



Replace the A/C pressure sensor.?



NO -



Check for loose wires or poor connections at climate control unit connector A (40P) and at the A/C pressure sensor 3P 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 See: Heating and Air Conditioning/Control Assembly/Service and Repair/Climate Control Unit Removal/Installation.?



16. Turn the ignition switch to LOCK (0), and disconnect climate control unit connector A (40P).



17. Disconnect these items:



- Driver's air mix control motor



- Passenger's air mix control motor