It's weird. It was only happening once in awhile, now it happens a lot. You turn the ignition and the check engine light comes on and also D4 flashes when in park. If this is happening, you usually cannot start the car. What we've been doing is trying to turn it on a few times and usually the check engine light will eventually turn off and it starts right up, but D4 still flashes and you don't start out in first gear, you actually have to move the gear shift to first (its an automatic). Then when you drive it like this once and turn it off, the next time you start it, it's fine. It seems like it happens more often when its hot outside or when there is a short time between shutting it off and starting it again, like if I'm going into the gas station for a few minutes. Any ideas?
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The Check Engine Light (which is actually the Malfunction Indicator Lamp or ... you can assume the fault that is causing the Check Engine Light to come on is probably minor and won't hinder your ability to continue driving. ... When the ignition is turned on (don't start the engine yet), the tool will .... flashing check engine light ...
Nov 7, 2015 - When the check engine light comes on, take the car to a reputable mechanic .... I went to go home. the check engine light was blinking and it won't start. ... I looked in my manual book for 2001 holden barina car to see what the ...
d4 light indicates electronic transmission failure but this can b as simple as low transmission or old fluid . change fluid if its dark or watery, before you panic.(( use only honda brand atf,)) if that doesnt work the codes need to b considered this can b done by jumping the two pin connector under or behind the glovebox with a paper clip the d4 light will flash once you turn the ignition on to first position' when dash lights first come on . it will flash then stop then flash again you need to count the first and second separately this will give you 2 diget code look it up exp; honda d4 dtc 34 just say google it , but if i were to guess if not the trans fluid the codes will b for sift selinoids easy fix but no fun to change. good luck. you will need a scanner for the check engine light uncommon for both to show up at the same time two diffrent systems ,disconnect the battery for 30second this will reset the ecm, it maybe a false code and it may not return.
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.
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.
Is the starter turning over the engine when it wont start or is nothing happening at all?
I might have your solution if I have more details.
If the engine is turning over but not starting then switch on the ignition and push it to start.If it starts you probably need a new ignition switch.
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
d4 is flashing as a trouble code for the automatic transmission... i would say without research that it is a code for a transmission solenoid. maybe while washing the car some water got in and caused a short...these solenoids are usually weatherproof....you could try disconnscting the battery for 30 secs..to clear the trouble code and then start the car. remember you may lose your preset info!