Friday, April 24, 2020

2010 Acura Truck MDX V6-3.7L Page 67


YES -



Repair a short to power in the wire. This short may have also damaged the climate control unit. Repair a short to power before replacing the climate



control unit.?



NO -



Go to step 17.



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



18. Reconnect the climate control unit connector A (40P).



19. Turn the ignition switch to ON (II), and measure the voltage between climate control unit connector A (40P) terminal No. 6 and body ground.



Is there about 5 V?



YES -



Go to step 20.



NO -



Check for a loose wire or poor connection at climate control unit connector A (40P). If the connection is 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.?



20. While measuring the voltage as described in step 19, reconnect these items individually and note the voltage reading each time:



- 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



Does the voltage remain at about 5 V?



YES -



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.?



NO -



Replace the component that caused the voltage drop.?