Have 1992 honda accord, started having trouble out of the blue. The car would not drive correctly in d4 but would drive good in R and d1 and the lights on the dash indicating P, R, D4, etc. would show while in park the D4 light would be on also even in R the D4 light would stay on and sometimes flash. Would not drive the car so it had been sitting in driveway for a couple of days and then when trying to start the car it would not, the battery had gone dead, recharge the battery and now the car is driving fine no lights and d4 and everything else seems fine. Took it to a car mechanic and he advised that there is nothing wrong with the battery that the car had a wiring problem grounding out cause the battery would only hold a charge for about 3 hours. The mechanic has the car completely apart and is having trouble finding where the wiring problem is. Wanted to know if there is any suggestion where to look. Thanks
The transmission control unit has gone bad, a very common problem. There is a capacitor in the TCU that goes bad and cause a short on the board. Do not get a used one, they are all bad. A number of people sell rebuilts on Ebay. The TCU is under the Front passengers feet, pull back the carpet and you'll see both the PCM and TCU.
google "accord tcu" or "tcm" if you like
Need more info, just ask
Dave
SOURCE: 92 accord check engine light d4 flashing
This is a typical Honda problem. unfourtunatly their design on the transmissions are not the best. Most of the times when you have a flashing light on the shifter on a honda it is the beginning of an internal transmission problem, not a major one but most likley one of the solonoids in it. just for future reference to you make sure to keep your trans fluid changed on the recommend mileage because they do have an internal filter that is extremley common for plugging up and giving a no shift condition. Hope this helps. swiftautorepairs.com
SOURCE: i have a 1995 honda accord and for some reason the
The d is for drive, the number is for what gear you are using.Driving in 3rd gear all of the time will decrease gas mileage, and increase engine wear, but as long as the engine rpms aren`t too high there is no immediate damage.
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