How to Use the Self-Diagnostic Function with the HDS

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Make sure the ignition switch is LOCK (0).
Connect the HDS to the data link connector (DLC).
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the vehicle and the climate control unit. If it doesn't, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
Select HVAC/CLIMATE CONTROL in the BODY ELECTRICAL menu.
Select INSPECTION in the HVAC/CLIMATE CONTROL menu.
Select CLIMATE CONTROL SELF TEST in the INSPECTION menu.
Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC TROUBLESHOOTING .
NOTE:
- After troubleshooting, clear the DTCs with the HDS.
- For specific operations, refer to the user's manual that came with the HDS.