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Gauges in the cluster light up but do no work

Tiny
RIGOMA12
  • MEMBER
  • 2006 INFINITI M45
  • 4.5L
  • V8
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
All the gauges in the cluster light up but do no work. The tachometer, speedometer gas or cooling are not working. The electronic prndl lock will not disengage unless I use the manual press button. The climate control and blowers stopped working too. I do have radio. What fuse blew and where is it located?
how can I find the fuse and where to buy it?
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Saturday, November 25th, 2017 AT 12:06 AM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
When fuses blows, it is best to check all because it could be multiple and they could be related. A test-light (preferably LED) would be the best aid you need to test fuses.

The fuse box and fuse location can be found in owner's manual. Fuse boxes are generally under dash at driver side and under-hood should be next to battery.

Fuses are easily available in parts stores but be sure to get the designated fuse and do not attempt to increase or decrease the stipulated amperage. You could have some spare fuses located in the fuse box if they have not been removed.
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Saturday, November 25th, 2017 AT 12:58 AM
Tiny
RIGOMA12
  • MEMBER
  • 7 POSTS
Can you give me the specific fuse/relay that blew or no?
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Sunday, November 26th, 2017 AT 9:14 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Sorry I am not able to get the specific # for you now but I will get back to you when I am able to access our database for the required information.

However as I mentioned previously, it is advisable to check all fuses and not only specific ones as they can also cause problems if it is related.
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Tuesday, November 28th, 2017 AT 10:06 PM
Tiny
RIGOMA12
  • MEMBER
  • 7 POSTS
All the fuses are fine, what else could it be?
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Wednesday, November 29th, 2017 AT 8:13 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You mentioned the gear shift could not be moved unless you manually over ride it. That could mean the brake lights are not working. Get someone to depress the brake pedals while you check if the brake lights turn on. If brake lights works and all fuses are confirmed to be good, the next step to do is to get a diagnostic scan to check if there are any trouble codes and proceed accordingly.

This system is within body control section and normal scan tools do not work. The fault could be with the Body Control Module (BCM).
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Friday, December 1st, 2017 AT 5:44 PM
Tiny
RIGOMA12
  • MEMBER
  • 7 POSTS
I scanned for codes and this is what I got. How do I get to/ check the bcm?
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Saturday, December 2nd, 2017 AT 11:03 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,959 POSTS
If I can jump in here it looks like you have one of two things that can happen. First is the BCM is out and not communicating with the network. Next is the BCM is not getting power or ground. It does have 5 fuses that run it. Here are two guides and some diagram (below) that will help you check it out. If the BCM is bad a shop will need to program it for you.

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

and

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

Please let us know what you find. We are interested to see what it is.

Check out the diagrams (Below)

Cheers, Ken
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Monday, December 4th, 2017 AT 1:53 PM

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