Tranny failure or shift solenoid failure.
Transmission problem. Take it to a professional for repair.
speed sensor is out or is going out. your speedometer is out too right?
Honda DW1 Valvoline maxlife dex/merc Redline D4
Means something is wrong with your transmission. Get it fixed ASAP! I just fixed this on my 95 legend it was a speed sensor $225.00 repair yea
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.
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.
it means your motor is about too shut down and or is overheating.
transmission trouble for sure
A flashing D4 light indicates a problem with the transmission. It may just need the transmission fluid changed or it may be a more serious problem. I Recommend you seek professional help and do not drive this vehicle until you get the problem repaired or you may do serious damage to the transmission.
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.
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)
the d4 flashes when the ecu has detected a problem you will have to get the codes pulled from the ecu to diagnose the problem or switch off the ignition leave for a few seconds then restart should go away. Make sure the car is fully stopped between changes from reverse to drive.