How to Check for DTCs 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.

NOTE:

There are three methods used to check for DTCs. The recommended method is to use the Honda Diagnostic System (HDS) with the appropriate software, plugged into the data link connector (DLC).
The second method is to run the self-diagnostic function built into the climate control unit.
The third method is to use B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Make sure the ignition switch is LOCK (0).
Connect the HDS to the DLC (A) located under the driver's side of the dashboard.

Fig 1: Locating DLC Under Driver's Side Of Dashboard
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 DTCs in the HVAC/CLIMATE CONTROL menu.
Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC TROUBLESHOOTING . If no DTCs are indicated, refer to SYMPTOM TROUBLESHOOTING .
NOTE:
- After troubleshooting, clear the DTCs with the HDS.
- For specific operations, refer to the user's manual that came with the HDS.