Check engine light on cluster gauges not moving

VASLIM2022

MEMBER
2004 CHEVROLET TAHOE
5.3L
4WD
AUTOMATIC
177,000 MILES

So, for a while my needles were all over the place while driving, then just stopped working. Mileage doesn’t display only check engine light. Dimmer switch still works for low and high beams. Radio, horn, and TV still work. I’ve checked fuses including IPC fuse mini-10.
Is that check engine light connected to the cluster? What other checks can I perform? Any help would be great single female parent.

Saturday, April 30th, 2022 AT 5:36 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,055 POSTS

Hi,

The instrument clusters on these vehicles are known to fail. Oftentimes, the printed circuit boards inside have solder joints that crank causing a weak or no connection condition.

First, you have already checked fuses. So, make sure the connector is secure and fully plugged into the cluster.

If that is good, take a look through the diagnostics below. They are for an inoperative instrument cluster. Let me know if this is something you are comfortable doing.

Here is a link you may find helpful:

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

Let me know what you find or if you have other questions.

Take care,

Joe

See pic below.

Image (Click to make bigger)