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WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect climate control unit connector A (32P) and the audio-HVAC display unit 12P connector
- Check for continuity between the following terminals of climate control unit connector A (32P) and the audio-HVAC display unit 12P connector
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32P 12P
No 3 No 7
No 4 No 8
Fig 1: Checking Continuity Between Terminals Of Climate Control Unit Connector A (32P) And Audio-HVAC Display Unit 12P ConnectorCourtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 3
NO -Repair open in the wire between climate control unit connector A (32P) and the audio-HVAC display unit 12P connector
- Check for continuity between body ground and climate control unit connector A (32P) terminals No 3 and No 4 individuallyFig 2: Checking Continuity Between Body Ground And Climate Control Unit Connector A (32P) Terminals 3 And 4
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair short to body ground in the wire between climate control unit connector A (32P) and the audio-HVAC display unit 12P connector
NO -Go to step 4
- Reconnect climate control unit connector A (32P)
- Connect the audio-HVAC display unit 12P connector No 7 and No 8 terminals with a jumper wire
- Turn the ignition switch to ON (II)
- Press and hold the front DEF button and OFF button
Is the front DEF button LED blinking?
YES -The audio-HVAC display unit is faulty, replace the audio-HVAC display unit (see AUDIO-HVAC DISPLAY UNIT REMOVAL/INSTALLATION )
NO -The climate control unit is faulty, replace the climate control unit (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION )