My cars d4 light is blinking rapidly I don't know why. I changed the fuse for the alternator because the speedometer and dashboard, head lights and back lights we're flashing. I fixed that problem but now my d4 light is blinking even when I put it on park and when I'm driving. It's a 98 honda civic dx automatic coupe
SOURCE: blinking dashboard drive light
The light is blinking to let u know that an electronic failure has occured in the transmission, u may feel nothing wrong or it could fail next week, get it tested for the trouble code that is stored in the trans computer control module.
SOURCE: 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
SOURCE: Flashing D4 light & speedometer stopped working
could be speed sensor. the light is on because the trans doenst know the vehicle speed.
SOURCE: 98' Honda Civic EX headlights flicker while driving
have your charging system checked, you may have a bad Altenator
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