The door lights and brake light and battery light turned on?

Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
  • 1998 HONDA ACCORD
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 290,256 MILES
I was coming home from work when all of a sudden, my dash lit up with all the door lights and brake light and battery light came on. I figured probably just needed to clean up some wires and or the battery terminals and connections. Did all that and still the lights are on. I've driven it to and from work like these the past 2 days and my battery is still good with 100% health and 99% state of charge. Any ideas would be very appreciated, thank you in advance.
Tuesday, July 30th, 2024 AT 3:54 PM

7 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
This is common when the driver side multiplex unit goes out. Here are the instrument cluster wiring diagrams so you can see how the system works with the driver side multiplex unit. I would check the power and grounds to the cluster and if okay I would replace the driver side multiplex unit.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.
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Tuesday, July 30th, 2024 AT 4:21 PM
Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
  • 118 POSTS
Quick question, could not having the correct size battery cause the warning lights to stay lit? Just curious. Thank you in advance.
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Thursday, August 8th, 2024 AT 3:43 PM
Tiny
KEN L
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Not really, but I would test the alternator to make sure it is working.

Here is a guide:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Please go over this guide and get back to us.

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+1
Thursday, August 8th, 2024 AT 5:26 PM
Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
  • 118 POSTS
Thank you. I will get back to you just as soon as I get it figured out. Greatly appreciate your help and time.
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Thursday, August 8th, 2024 AT 6:05 PM
Tiny
KEN L
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You are welcome.
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Friday, August 9th, 2024 AT 8:26 AM
Tiny
CHRISTOPHER IVAN ROEDER
  • MEMBER
  • 118 POSTS
Since I haven't had a chance to run the tests I had to drive to work and all the dash lights stay on except the abs and it seems to be holding a charge and hasn't died on me yet why is that?
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Friday, August 9th, 2024 AT 11:11 AM
Tiny
KEN L
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Sometimes the alternator will charge a little bit, if the battery light is on I would do the test.
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Saturday, August 10th, 2024 AT 9:35 AM

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