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Old Dec 4, 2017 | 07:58 AM
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Default Dash or ECBM Issues

Hi all,

My 2004 Vette dash has gone crazy.

Two of my gauges are not working: Volt & RPM. Upon starting, the needles go all the way to the right but then come all the way back to the left. I am receiving a "Low Voltage" light, which is not true since I put a meter under the hood and tested battery and Alternator.

Also, since I have to pass emissions, the emissions guy told me I have "check engine" light on as well, but it is not on in the dash.

My mechanic says I will need a Level 2 (?) diagnostic that only GM can do. I really hate to give all my Christmas Money to GM so I am soliciting help here first.

Thoughts?
Old Dec 4, 2017 | 09:34 AM
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Make sure the cables are connected properly. Check the connection at the under hood fuse box.
Old Dec 4, 2017 | 09:50 AM
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Thread starter has the same subject posted over in C5 TECH:

https://www.corvetteforum.com/forums...bm-issues.html
Old Dec 4, 2017 | 10:20 AM
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Originally Posted by Rob 02
Make sure the cables are connected properly. Check the connection at the under hood fuse box.
First thing to check. When you checked battery how many volts did it show? Twelve ain't enough.
Old Dec 4, 2017 | 12:14 PM
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Default Battery Read Out

Originally Posted by JR-01
First thing to check. When you checked battery how many volts did it show? Twelve ain't enough.

Just replaced with Yellow Top...13v exactly.
Old Dec 4, 2017 | 12:42 PM
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Originally Posted by Richard A. Snitzer
Just replaced with Yellow Top...13v exactly.
Old Dec 5, 2017 | 12:37 AM
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This is already posted in C5 Tech, which is the right place for the thread. Closing this one down.

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