DTC Troubleshooting Index

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Honda Odyssey, 2003 Honda Odyssey, 2002 Honda Odyssey, 2001 Honda Odyssey, and 2000 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC Troubleshooting Chart

Courtesy of AMERICAN HONDA MOTOR CO., INC.

In case of multiple problems the recirculation indicator will indicate only the DTC with the least number of blinks.
In case of an intermittent failure the heater control panel will store the DTC unit the ignition is turned off.