How to Use the HDS (Honda Diagnostic System)

If the system indicators stay on, connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

Fig 1: Connecting HDS To Data Link Connector (DLC)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch ON (II).
Make sure the HDS communicates with the vehicle and the ABS modulator-control unit. If it doesn't, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING (PART 1) ).
Check the diagnostic trouble code (DTC) and note it. Then refer to the indicated DTC's troubleshooting, and begin the appropriate troubleshooting procedure.

NOTE:

The HDS communication will be stopped when the vehicle speed is at 31 mph (50 km/h) or more.
The HDS can read the DTC, the current data, and other system data.
For specific operations, refer to the Help menu that came with the HDS.