Why is my D4 light blinking in my 2002 Honda Accord?

That blinking D4 light is telling you that there is an electronic problem related to your transmission, and if you don’t have this remediated promptly, it will lead to a mechanical problem.

Why is the D4 light flashing in a Honda Prelude?

If the D4 light is flashing the tranny ECU has detected a fault in the transmission. If your saying that you just had the rear main seal replaced, the tranny had to be taken out of the vehicle to have access to the rear main seal.

How do you check the transmission fluid on a Honda Accord?

Check the automatic transmission fluid level (with the engine off and the car on level ground) with the dipstick in the right end of the transmission housing. Remove the dipstick and wipe it off. Insert the dipstick, remove it again, and read the fluid level. The fluid level should be between the upper and lower marks.

What does it mean when the D is blinking?

Hello there, when the D light is blinking on the dashboard this means there is a transmission fault. Many different issues can cause this fault. The most common would be a low transmission fluid level, a mechanical transmission fault, a shift solenoid, or a pressure switch.

Why is the D4 light flashing in a Honda?

The D4 flashing light implies that there are potentially-serious problems with the transmission, so action should be taken quickly, either by inspecting the problem yourself or visiting a trusted mechanic. This will not only save you money in the long run, but it will also keep your car running for longer.

What does a blinking D4 transmission light mean?

keith July 6, 2016, 3:00am #2 A blinking D4 light is like a check engine light for the transmission. Regular code readers like the ones used by AutoZone will not read the transmission codes. You will need to take the vehicle to a dealer or a trusted transmission repair shop.

What does a blinking D4 light on a Honda Accord mean?

A blinking D4 light is like a check engine light for the transmission. Regular code readers like the ones used by AutoZone will not read the transmission codes. You will need to take the vehicle to a dealer or a trusted transmission repair shop.

What are the colors of the D4 light?

The wire colors are red and green/blue. Short the two pins of this plug with a short piece of wire or paper clip. Turn the key to the on position and the D4 will blink a code. One short blink = lock up clutch does not engage/disengage or unstable idle speed. Lockup control solenoid valve A Two short blinks = lockup clutch does not engage.

Why is the Check Engine light flashing on my Honda Odyssey?

Rough shifting may occur, and the “D4” light and check engine may begin to blink. The check engine light will also illuminate, and OBD trouble codes P0700, P0730, P0740, P0780, P1768 and/or P1768 will be stored in the computer. If the transmission shifts roughly, the failure is very likely mechanical failure of the transmission.