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Gauge cluster diagram

Tiny
JOE DENALI
  • MEMBER
  • 1999 GMC YUKON
  • 70,000 MILES
I’m looking for a diagram all of the colors on the plug that goes into the cluster the color wiring with the names of the colors and what the colors do.
Wednesday, October 16th, 2019 AT 9:31 AM

9 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

I attached the connector with a pin out and function of each wire.

Roy
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Wednesday, October 16th, 2019 AT 1:59 PM
Tiny
JOE DENALI
  • MEMBER
  • 13 POSTS
Thanks Roy. I’m hooking up aftermarket gauges from auto meter and in going to use the speedometer wire off the factory cluster and also the fuel wire.
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Wednesday, October 16th, 2019 AT 3:11 PM
Tiny
ASEMASTER6371
  • MECHANIC
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The speedometer may not work. That changes a signal inside the cluster to show mileage.

Roy
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+1
Wednesday, October 16th, 2019 AT 3:17 PM
Tiny
JOE DENALI
  • MEMBER
  • 13 POSTS
Okay, but will the fuel work and how can I get the speedometer to work?
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Wednesday, October 16th, 2019 AT 3:24 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Not sure with an aftermarket unit. I would have to see the unit and how it needs to be wired.

The signal from the transmission is sent to the PCM and then off to the speedometer head but it is not a voltage. It is serial data.

Roy
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Wednesday, October 16th, 2019 AT 3:33 PM
Tiny
JOE DENALI
  • MEMBER
  • 13 POSTS
Fuel gauge and speedometer.
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Wednesday, October 16th, 2019 AT 4:16 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You can try the last one on the speedometer and see if it works.

Roy
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Wednesday, October 16th, 2019 AT 4:21 PM
Tiny
JOE DENALI
  • MEMBER
  • 13 POSTS
Thanks for all the help. I will keep in touch.
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Wednesday, October 16th, 2019 AT 4:26 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Wednesday, October 16th, 2019 AT 5:44 PM

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