"D4" Indicator Light
WARNING: This page is about a different car, the 1998 Honda Odyssey, 1998 Honda Accord, and 1998 Acura 2.3CL. However, it is still accessible from the selected car via links, so may be relevant.
The "D4" indicator light is located on A/T gear position indicator on instrument panel. See Figure . When ignition is first turned on, "D4" indicator light should illuminate for about 2 seconds, then turn off, indicating light circuit is functioning properly. If a fault is present in transaxle electronic control system and a fault code is stored, PCM delivers an output signal to flash "D4" indicator light.