How to Retrieve DTCs

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: Make sure the battery is fully charged before you begin.

Make sure the ignition switch is in LOCK (0).
Connect the HDS to the data link connector (DLC) (A).

Fig 1: Identifying Data Link Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the vehicle and the ACC unit. If it does not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
Use the HDS to check for ACC DTCs.
Read and record the DTC.
Turn the ignition switch to LOCK (0), then wait for 10 seconds.
Disconnect the HDS from the DLC.
Do the troubleshooting procedure for the DTC.