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Brake lights are not working properly

Tiny
DUGGG
  • MEMBER
  • 2007 LAND ROVER LR3
  • 4.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 127,000 MILES
Brake lights were working, replaced switch, now they work fine unless headlights are on, they stay on, tried another switch, no change. I tried a headlight switch, no change. Help! Thanks
Code says it is brake light switch.
Monday, October 8th, 2018 AT 12:03 AM

12 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,959 POSTS
Hello,

Please check fuse #15 - 15 amp in the fuse panel on the right side of the dash. Here are the brake light wiring diagrams to help you see how the system works. If the fuse is okay I would check the outputs of the GEM.

Here is a guide to help you check the fuse for power and the fuse location as well:

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

and

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

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Tuesday, October 9th, 2018 AT 11:43 AM
Tiny
DUGGG
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Fuse number 15 is 30 amp, I am including pictures. Thanks
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Tuesday, October 9th, 2018 AT 3:54 PM
Tiny
KEN L
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Sorry, the fuse panel inside the car #15, see if it has power with the key on.
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Wednesday, October 10th, 2018 AT 2:31 PM
Tiny
DUGGG
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  • 7 POSTS
Hi, could you please tell me the location of the interior fuse box? I have looked all over YouTube to find out but no luck, thanks.
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Friday, October 12th, 2018 AT 7:15 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,959 POSTS
It looks like it is under the dash on the passenger's side here is a diagram below. Please let us know what happens.
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Saturday, October 13th, 2018 AT 11:02 AM
Tiny
DUGGG
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Hi sorry to bother, could not find fuse box under dash. Do I have to remove glove box or something? Also, would blown fuse cause this issue? Thanks
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Monday, October 15th, 2018 AT 12:53 PM
Tiny
KEN L
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Yes a blown fuse can cause this. You might need to remove the glove box because the blower motor is near the fuse panel. If the fuse is good we need to check the switch next. Please let me know.
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Tuesday, October 16th, 2018 AT 10:15 AM
Tiny
DUGGG
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Okay, found fuse box behind glove box, #15 is good, ideas? Thank you!
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Saturday, October 20th, 2018 AT 11:30 AM
Tiny
DUGGG
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Oh and yes it is hot with key on.
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Saturday, October 20th, 2018 AT 11:34 AM
Tiny
KEN L
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Okay now we need to check for power at the stop light switch green/orange wire.

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

Check out the diagrams (below). Please let us know what you find.
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Monday, October 22nd, 2018 AT 9:56 AM
Tiny
DUGGG
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Okay, I spoke with another mechanic, he said replace bulbs with Landrover OEM, I did ( $7.00 each ), Now the brake lights work wen headlights are on, but only the left side and overgate, the right one goes off wen brakes applied, but at least there are some brake lights. Any ideas? Thanks
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Tuesday, October 23rd, 2018 AT 9:47 PM
Tiny
KEN L
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It sound like you dont have the bulbs in right can you recheck them and clean the contacts this guide can help.

https://www.2carpros.com/articles/brake-lights-not-working

Please let us know what you find.
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Wednesday, October 24th, 2018 AT 10:55 AM

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