Entering the self-diagnostic function without HDS

Before doing the self-diagnostic function, check the No. 8 (10 A) fuse in the under-hood fuse/relay box and the No. 3 (10 A) fuse in the under-dash fuse/relay box.

Push and hold the trip/reset button.
Turn the lighting switch ON.
Turn the ignition switch ON (II).
From 2 sec. to less than 5 sec, turn the lighting switch OFF, then ON and OFF again.
Within 5 sec, release the trip/reset button, then push and release the button three times repeatedly.

NOTE:

While in the self-diagnostic mode, the dash lights brightness controller operates normally.
While in the self-diagnostic mode, the trip/reset button is used to start the Beeper Drive Circuit Test and the Gauge Drive Circuit Check.
If the vehicle speed exceeds 2 km/h (1.2 mph) or the ignition switch is turned OFF, the self-diagnostic mode ends.

Fig 1: Identifying Blinking Pattern (Self-Diagnostic Mode)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

The Beeper Drive Circuit Check

When entering the self-diagnostic mode, the beeper sounds five times.