Question about 2004 Honda Accord

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The check engine light turn on and the d4 light keeps on blinking repitly

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Something could be wrong with you engine if it blinks, take it to the mechanic for scan

Posted on Jul 23, 2008

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1995 Honda Odyssey automatic. randomly it will have a slight jerk, then check engine light comes on and d4 light blinks while driving on freeway. the speedometer works fine when these lights appear...


First thing to do is have the computer checked for trouble codes. The blinking D4 light means overdrive is not going to function, probably because of the rough running engine.

Feb 14, 2014 | Cars & Trucks

1 Answer

Honda 1995 Engine light and D4 flashing...


Hi there;I suggest scanned the computer car in order to know additional fault codes. Check other details HERE.


The Check Engine light may come on, indicating a system problem when, in fact, there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair connections if necessary.


The Check Engine light and D4 light may light simultaneously when the self-diagnosis indicator blinks.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 16, 2012 | Cars & Trucks

1 Answer

D4 light on no matter what gear i'm in. 95 Honda Accord LX 4-cylinder. Already replaced solinoid, speedometer, fan,


The D4 light is coming on to tell you that there is one or more fault codes set in your transmission control module. The only way to retrieve codes on the 1995 models is to read "Flash Codes" output by the D4 light. (See instructions below)

RETRIEVING FLASH CODES USING THE D4 LIGHT
If fault codes are present, the D4 light will "blink" when the ignition is turned to the RUN position and will remain on at all times when the engine is running.
To retrieve the flash codes, turn the ignition switch off.
Install a jumper wire between the service check connector terminals.
The service check connector is a gray, 2-pin connector located on the PCM/TCM cover under the passenger side of the instrument panel. (See picture below)

CAUTION: DO NOT use the 3-pin located next to the service check connector.

Installing the jumper will place the PCM/TCM in diagnostic test mode.
Turn the ignition to the RUN position. Codes will be output by blinking the D4 light.
Note the number of blinks from the D4 light. A short blink indicates a single digit flash code. A long blink equals 10 short blinks. For instance one short blink indicates code 1. One long blink and four short blinks indicates code 14. If there is more than one fault code, they will be output one at a time from the lowest numbered code to the highest numbered code. It is recommended that you read the code or codes several times to make sure that you are reading it correctly.

Once you have retrieved the fault code(s) re-post your question and include the information for what codes you have and someone can then help you locate the cause of the problem.

May 22, 2011 | Honda Accord Cars & Trucks

1 Answer

My check engine light keeps blinking when i accelerate. and my truck shacks a lot when i drive.


The ony accurate way to diagnose this is with a diagnostic check from the dealer or a repitable shop. There are too many things to just change out to see what the problem could be. Could be anything from the mas air flow sensor to a bad spark module.

May 04, 2011 | 1996 Ford Explorer

1 Answer

Check engine lioght is on and d4 light is blinking n when u step on the gas on d4 it doesnt wanna go???? wats wrong wit it


There are many other things that cause the D4 to flash. The D4 light turning off is similar to the CEL turning on. Some codes cause the light to blink, some turn it off. There's an error code stored, pull it and start from there.

Check this DIY: Diagnosis: Pulling Codes

Definitely pull all the codes and let us know what you find. Once we know what the codes are then we can help you troubleshoot the issue/s. Alot owners talk about VSS (Vehicle Speed Sensor) but the VSS may or may not be part of the issue but per your description it may sound like a main relay to a tranny issue.

Keep us updated.

Mar 06, 2011 | 1997 Acura CL

1 Answer

D4 is blinking when i drive 1991 acura legend L.


Hi Gregory:

This is an internal transmission failure the check engine light along with the D4 light flashing and the slipping is telling you this. What happens is the clutches internal in the transmission fail and no longer hold pressure and cause the transmission to fail triggering the check engine and D4 light.


Hope this helps.

Jan 24, 2011 | Acura Legend Cars & Trucks

8 Answers

D4 blinking, spedometer not working, check engine light on


Hi, a few questions 1st. Did your mechanic check for engine codes? Is your Honda a v-6 or 4 cylinder?
The flashing D4 light indicates a possible transmission malfunction. You should avoid rapid acceleration until the cause of the light blinking is determined.
If you have the V-6, there is a diagnostic port to connect a scan tool to read any stored engine codes that have turned on the check engine light. This port is located behind the ashtray in the center console (most cars did not have this til 96).
If you have the 4 cyl engine, there is a service connector located under the dash on the pass. side. Inside the connector is what looks like a 2 wire plug should be attached. Take a paper clip, unbend it, and insert the 2 ends of the clip into the connector to 'jump' it. Turn the ignition switch to the on position (don't start the vehicle), and the check engine light will flash. Count the flashes, short flashes are for code #'s 1 to 9 (single digit code), a 2 digit code will be a long flash for the 1st digit, followed by a short flash for the 2nd digit. If there is more than one code, they will be separated by a pause. They will repeat so you can count them and write them down. Let me know what the code #'s are so I can help further. Curt

Jul 22, 2009 | 1995 Honda Accord

2 Answers

ENGINE TUNS OF BUT WONT START


try checking the trans fluid level if its not that check connection on trans control module located under carpet on passenger side floor behind a panel same location as engine control module

Apr 25, 2009 | 1992 Honda Accord

1 Answer

D4 light is blinking


Well what that means is that there is a code for your transmission and u need to find out the code in order to solve the problem. You can have a dealer do this for u or take a look at this link and see if u can figure it out yourself... http://www.hondapitstop.com/accord/technotes1/engine/error_codes/error_codes.html hope this helps, good luck

Oct 30, 2008 | 1994 Honda Accord

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