How to Retrieve a DTC: Notes

The heater control panel has a self-diagnostic function. To run the self-diagnostic function, do the following:

1. Turn the ignition switch ON (II).
2. Press the FAN UP button and then the FAN DOWN button. Continue to hold both buttons down.
   Fig 1: Locating Fan Up Button And Fan Down Button

   Courtesy of AMERICAN HONDA MOTOR CO., INC.

   If there is any abnormality in the system, the DTC indicator will light up the segment (C, D, I, J, K, L, M, or N) corresponding to the error. Then the DTC indicator will alternate every second between displaying "88" (all segments lit) and the error code segment (C, D, I, J, K, L, M, or N). To determine the meaning of the DTC, refer to the DTC TROUBLESHOOTING INDEX . If there is no abnormality, the segments will not light up.

   Fig 2: Identifying DTC Indicator

   Courtesy of AMERICAN HONDA MOTOR CO., INC.