D4 light blinking 92honda prelude?
Problem with the A/T. I suggest you take it to a Honda dealer or a trusted transmission professional.
Your speedometer in a 92 SI AT will shutoff while driving transmission kicks a little when this happens and the D4 light starts blinking when you run the code by jumping the P2 plug it just gives you?
What does it mean if D4 transmission light on Dash from blinking and the Odometer needle does not function properly in 1996 Honda Accord VVTi?
It should be related to trasmission part mechanical or electronic, any noise or adnormal during acceleration? Try to replace the transmission fluid first, if D4 lights still blinks, then should be the sensor problem. At the mean time, the Km meter also shows up and down and not reflecting the actual speed.
Answer I've got the same problem on a 92 legend. The D4 flashes after about 3 minutes of driving and does not stop until shut off. No engine light, no problems with the way it drives or shifts. I bought a HELMS manual and they show how to apply a wire to short across the ECM and the D4 light will flash a "code", telling you what the problem is. I'm tracking down that now…