I have 2002 accord sometimes when i come to a stop shift hard to first gear and d4 for is flashing tcu and check engine light comes on and starts shifting hard when i turn of the car and start it it drives fine thinking its the tcu need to be changed
It is the Transmission Control Unit. you have to find the reason why the TCU is flashing the D4 fault code. not replace the unit. have your vehicle scanned for another code. your transmission or transaxle is giving you a warning that something is wrong .
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1999 gr am. 75,000 miles. rev high shift hard, don't want to start, no lights coming on to indicate problem, not even check engine light
Transmission shifts fine but the engine is really loud inside the cabin of the car
sometimes shifts hard and you can not go over 40mph. check engine light comes on and it reads low voltage. Ive had four mechanics look at it with no success.
my 2002 honda has a hard shift in first gear and first gear onlyit rides like a new car after it shifts out
why Honda accord 2002 D4 LIGHT FLASHING
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