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Turn on the running/parking lights, the brake lights are also on?

Tiny
REYREY2001
  • MEMBER
  • 2003 HONDA CRV
  • 2.4L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 141,000 MILES
With key/car on, the brake lights would stay on. I replaced the brake switch at the pedal as well as the "stopper" on the pedal arm. Fixed this issue. However, when I turn on the running/parking lights the brake lights are also on. Whether the switch is to the running/parking lights or the headlights, whether I press the brake pedal or not, the brake lights are on. I have noticed before that when I do press the brake pedal, lights off, my running/parking lights come on as well.
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Sunday, March 12th, 2023 AT 2:13 PM

18 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
It sounds like one of your rear taillight bulbs or bulb sockets have shorted together back feeding the brake light circuit. I would remove the rear lens to inspect all bulbs and sockets to look for such a connection, here is what I am talking about and how to remove the rear lens in the images below.

This guide can help as well:

https://www.2carpros.com/articles/no-tail-lights-exterior-running-lights-tail-lights-out

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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Monday, March 13th, 2023 AT 10:06 AM
Tiny
REYREY2001
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  • 13 POSTS
Looked at all sockets and connections while I was replacing bulbs. I also thought maybe someone jumped taillight brake light but nothing was found.
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Monday, March 13th, 2023 AT 11:23 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Is there a trailer wiring connector? If so, that is the next place, I would look to see if a connection is shorted together. Here are the taillight and brake light wiring diagrams so you can see how the system works.

Here is a guide to help you check the connections:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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Tuesday, March 14th, 2023 AT 9:12 AM
Tiny
REYREY2001
  • MEMBER
  • 13 POSTS
No. No trailer wiring. No tow-hitch. This is going to be my niece's surprise birthday gift at the end of April.
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Tuesday, March 14th, 2023 AT 10:03 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Can you confirm the brake light bulbs are the correct ones? They should have two connections at the bottom of the bulb, not one.
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Wednesday, March 15th, 2023 AT 11:43 AM
Tiny
REYREY2001
  • MEMBER
  • 13 POSTS
I do not recall the part number but I do know the rear blinkers and brake lights take the same bulb which is the standard traditional round bottom kind with a prong on each side. The rear taillights have a blade type connection.
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Wednesday, March 15th, 2023 AT 1:45 PM
Tiny
REYREY2001
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  • 13 POSTS
Rear blinkers and brake lights twist into the socket. The rear taillights push in.
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Wednesday, March 15th, 2023 AT 1:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
As you can see from the wiring diagrams the two-lighting system do not cross except at the bulb and socket. Can you remove both brake light bulb and inspect and upload a picture of the bottom of the bulb please? You may have a wiring loom that has shorted together as well so please inspect the wiring for damage.
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Thursday, March 16th, 2023 AT 10:54 AM
Tiny
REYREY2001
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  • 13 POSTS
My work has me on a crazy schedule today and tomorrow but I will for sure respond with pictures on Sunday.
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Friday, March 17th, 2023 AT 8:20 AM
Tiny
REYREY2001
  • MEMBER
  • 13 POSTS
If it makes any difference, I have the UK model not Japan model.
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Friday, March 17th, 2023 AT 11:22 AM
Tiny
KEN L
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No problem, if you can upload the picture of the brake light/running light bulb (dual filament) that would be great.
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Sunday, March 19th, 2023 AT 11:06 AM
Tiny
REYREY2001
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  • 13 POSTS
Driver's side.
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Sunday, March 19th, 2023 AT 11:40 AM
Tiny
REYREY2001
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  • 13 POSTS
Passenger side.
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Sunday, March 19th, 2023 AT 11:41 AM
Tiny
REYREY2001
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  • 13 POSTS
Bulbs
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Sunday, March 19th, 2023 AT 11:42 AM
Tiny
REYREY2001
  • MEMBER
  • 13 POSTS
Another way to rephrase my situation would be to say that my brake lights and my tail/running lights are tied together; switch (by steering wheel) and brake switch (at the brake pedal).
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Sunday, March 19th, 2023 AT 11:48 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yep, you have found the problem, this socket has two terminals and you have a signal terminal bulb in it. Install the correct bulb and it should fix it.
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+1
Monday, March 20th, 2023 AT 11:19 AM
Tiny
REYREY2001
  • MEMBER
  • 13 POSTS
Wow! That was it! I asked the guy at the auto part store and I heard him mumble that I probably didn't have the Great Britain model and I said that I did. He then said they were 2 different style bulbs. You don't know how much I appreciate all your help! Thank you!
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Monday, March 20th, 2023 AT 6:33 PM
Tiny
KEN L
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Thanks for letting us know, we are here to help, please use 2CarPros anytime. Can you please leave us a rating? (Copy entire link)

https://www.google.com/search?q=2carpros&gs_ivs=1#lrd=0x80dcd47364be5d0d:0xba091aa4209f4497,1,,,&tts=0

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Tuesday, March 21st, 2023 AT 12:03 PM

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