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Both side Brake Light always on even switch off the engine?

Tiny
NIVIKAMAL
  • MEMBER
  • 2015 NISSAN ROGUE
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
Hi,

I have a weird issue that started a few days ago. Brake Light on both sides is always on even when I switch off the engine.

Read Top Center Brake Light working fine and only on when I press the brake.

So, I checked the Brake Light switch, and it is working based center brake is on when I pressed brake.

Do you think there could be ground issues with both sides of the brake lights?

Currently I can't get it through inspection due to always on lights.

When I checked with nearby service center and Dealer service center they said something with electrical issues.
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Thursday, August 17th, 2023 AT 4:36 PM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,432 POSTS
It sounds like the BCM has gone out. But to be sure, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is how to change out the BCM, you can get a preprogrammed unit by searching Google or Ebay. Also, I have included the brake light wiring diagrams so you can see how the system works and which fuses to check just in case. Check out the images (below). Please let us know what happens.
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Friday, August 18th, 2023 AT 11:16 AM
Tiny
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Thanks Ken L. I will take a look and update you.
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Friday, August 18th, 2023 AT 11:30 AM
Tiny
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  • 4 POSTS
Hi ken,

I took two times for getting service for this issue (one with normal service company and 2nd dealer service) both did diagnostic, and they didn't tell anything about BCM. I will buy and diagnostic and see.
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Friday, August 18th, 2023 AT 12:00 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,432 POSTS
Sounds good, a CAN scan should tell us something, please let me know.
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Saturday, August 19th, 2023 AT 9:31 AM
Tiny
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  • MEMBER
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Dear Ken,

Here is the code I received from CAN:
P062F - Internal Control Module EEPROM
P0603 - Internal Control Module keep alive memory
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Sunday, August 20th, 2023 AT 7:06 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,432 POSTS
Here's a brief explanation of each code:

P062F - Internal Control Module EEPROM:

P0603 - Internal Control Module Keep Alive Memory:

I would go over all fuses in the vehicle with the systems on.

here is a guide to help:

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

If all fuses are good it sounds like the ECM is having a problem, you can get a preprogrammed unit by searching Google or Ebay.

Here is how to change the ECM out. Check out the images (below). Please let us know what happens.

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Monday, August 21st, 2023 AT 9:17 AM

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