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Dashboard Goes Blank
drgpd@hotmail.co...
post Aug 23 2017, 10:25 PM
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I have a 2001 Tahoe Z71 5.3 liter with 350,000 miles. Not ready to give it up.
Five months ago the dashboard went blank ( no tach, speedo, temp or fuel gauge ) PRNDL went out and only 2nd and 3rd gear worked but I had to shift into the gears manually. Trouble Codes that came up : P0740, P0753, P0758, P0785, P1860.
I sent the instrument cluster over to a repair guy and reinstalled it and replaced the ignition switch. Cleared all the codes and everything was hunky-dory until a few days ago. Whole dash is blank and shifting is manual.
Any ideas would help.
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carguru
post Aug 24 2017, 03:58 AM
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Any new codes come up now?

My suspicions will be on the couple things you haven't touched yet--ground issue or the BCM is gone wonky.


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drgpd@hotmail.co...
post Aug 24 2017, 12:31 PM
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QUOTE (carguru @ Aug 24 2017, 04:58 AM) *
Any new codes come up now?

My suspicions will be on the couple things you haven't touched yet--ground issue or the BCM is gone wonky.

Thanks, I did check all the ground wires I could find. Multiple new codes came up but I didn't write them down yet. I will tonight.
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drgpd@hotmail.co...
post Aug 24 2017, 05:23 PM
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The same codes came up: P0740, P0753, P0758, P0785, P1860.
Oil and volt gauges work, nothing else.
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