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post #1 of 4 (permalink) Old 12-12-2018, 04:04 PM Thread Starter
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2005 cobalt ss gauge cluster lights up but doesnt work....

Just recently got this on a trade. Gauge cluster lights up but the rpm,speed, fuel and temp do not work. The odometer will read and then go to lines. Check engine ABS and brake light stay on..... Not sure what the problem is. Checked the fuses all good inside and out... Dont want to spend a fortune fixing it. Thanks..
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post #2 of 4 (permalink) Old 12-12-2018, 04:40 PM
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Did you pull the fuses? Sometimes they oxidize and produce a higher resistance same with the contacts of the 2 blue/gray connectors on the BCM fuse block. Sometime just re-seating these helps

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post #3 of 4 (permalink) Old 12-14-2018, 03:04 PM Thread Starter
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Yes all fuses were checked thoroughly. I changed the cluster and its doing the same thing with then new one
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post #4 of 4 (permalink) Old 12-14-2018, 03:30 PM
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Did you re-seat the two blue gray connectors on the BCM? You either lost low GMlan communication or you broke a ground. What are the codes from the PCM?

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