the crank sensor is broken
AnswerI'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.DonIt happened to my 91 Legend. It meant thet my vehicle speed sensor was no good.
The D4 light on a Honda Accord is the transmission warning light. These come on when there is a malfunction on the transmission. For the problem to be diagnosed properly the vehicle should be taken to a dealership.
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.
If the green light on the instrument panel (which is marked D4), does not come on when you shift into D4, then you will not have 1st and 4th gear. That is one possibility for the problem. If that is the case, you will have to have the switch replaced that controls the light. Sometimes you can move the shifter back and forth to activate the switch to get the light to turn on and then you will have all of your gears working.
Transmission error
It means the car needs servicing.
The D4 light on a Honda Accord is the symbol for the 'check transmission' light. This light appears when the computer senses something wrong in the drivetrain. The computer should be diagnosed at a proper repair shop in order to source out what exactly is causing the problem.
A flashing D4 light on Honda Accords is commonly the result of a bad speed sensor. The speed sensor is located on the transmission and sends a signal to the speedometer and a signal telling the transmission when to shift.
There are lots of ways you could do it. The formula in A1 could be any of these: =D4*0.9 =D4*90% =D4-(D4*10%) =D4-(D4*0.1)
There is a problem with the A/T. Seek professional help.
it means your motor is about too shut down and or is overheating.