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The green light for the D on the dash not working

Tiny
NEIL2002CIVIC
  • MEMBER
  • 2002 HONDA CIVIC
  • 1.7L
  • 4 CYL
  • 2WD
  • 67,000 MILES
Hi, the green light on the dash on the D stopped working. It would go on and off once in a while but now has gone out totally. It was not like it was flashing codes more like flickering. There is no drivability problem. How can I check it without taking part the dash? What powers it up? Neutral safety switch?
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Tuesday, October 8th, 2019 AT 10:31 AM

7 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi,

The way this works is the gauge assembly gets a power feed from the fuse panel but the gauge assembly has an internal CPU that controls the lighting circuits. This means that if the D is the only one that is not working then you have an internal issue to the gauge assembly. Either it is the bulb itself or an issue on the driver circuit.

Unfortunately, it appears the only way to repair this is to take it apart or replace it.

Let me know if you have questions. Thanks
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Wednesday, October 9th, 2019 AT 4:40 PM
Tiny
NEIL2002CIVIC
  • MEMBER
  • 111 POSTS
Hi thank you. I Googled how to change the dash bulbs and this came up on YouTube. 2002 Honda civic instrument cluster test. It sweeps the gauges and checks the lights. The D didn't light up so when I did the test.I will go for the bulb first. Looking at the diagram it looks like if the driver was bad that all the bulbs would be out. Am I correct?I thought you could use the info it shows for yourself and others in the future.
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Wednesday, October 9th, 2019 AT 6:57 PM
Tiny
KASEKENNY
  • MECHANIC
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No. If the entire driver is bad then all the drive lights would be out, D, D3, D2. However, individual circuits in the driver could fail but I am with you to do the bulb first.
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Thursday, October 10th, 2019 AT 7:11 PM
Tiny
NEIL2002CIVIC
  • MEMBER
  • 111 POSTS
Thanks for your time I will update you soon. I ordered 2 bulbs It's starting to get cold here. Unless you tell me that the bulb completes a circuit and will effect the car negatively. I will do it when I can. My wife needs 2 surgeries on top of this. I know it's not hard job. Now just finding the time. Have a great day!

Neil
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Thursday, October 10th, 2019 AT 11:00 PM
Tiny
KASEKENNY
  • MECHANIC
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Sounds great. Clearly its not a priority. Take care and update us whenever you get around to it. Thanks
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Friday, October 11th, 2019 AT 7:39 PM
Tiny
NEIL2002CIVIC
  • MEMBER
  • 111 POSTS
Hi, I may have some time on my hands to this bulb. Besides disconnecting the battery and hoping nothing plastic breaks. Anything I should know or be aware about? Have a good day. Thanks
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Wednesday, October 30th, 2019 AT 6:19 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
No. Just brittle plastic as you mentioned. Use a trim stick. They sell them at most parts stores but it makes prying easier and you break less stuff.
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Wednesday, October 30th, 2019 AT 7:03 PM

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