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Electrical Issues.

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Old Feb 23, 2025 | 12:44 AM
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LS Tyler
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Default Electrical Issues.

Dropped my procharged C6 off at a shop to get aftermarket clutch replaced because it would be easier on their 2 post lift rather than our 4 post. Picked the car up and it had lots of issues. lots of loose parts, and the car wouldn't start. Long story short, i jumped my auxiliary to get it home and was going through everything. took apart the fuse box to find lose contact for main fuel pump. fixed it all up and tightened all of the lose stuff the shop didn't torque properly. I had also found a lose ground in the driver rear. after cleaning and tightening the ground, went for a test drive I noticed the the "service active handling" on the dash ,and the SPEEDOMETER AND HIGHBEAMS WERE NOT WORKING. As well as a P0650 for the malfunction indicator lamp. I had checked every fuse for BCM and high beams everything looked good. Checked all the speed sensors and they were all plugged in and secure. I'm not sure what to do next because it was just working a few hours before. ANY HELP? thanks
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Old Feb 23, 2025 | 07:15 AM
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Your VSS must not have been plugged in during your clutch change…the P0650 and high beam flow charts below..also a good idea to at least let us know what model year you have…good luck in your testing !!










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Old Feb 23, 2025 | 06:55 PM
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LS Tyler
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Originally Posted by C5 Diag
Your VSS must not have been plugged in during your clutch change…the P0650 and high beam flow charts below..also a good idea to at least let us know what model year you have…good luck in your testing !!











Already got it all resolved, nothing to do with the sensors. As I disassembled the upper and lower part of the fuse box and found tons of pins that were loose that they screwed with that they had no reason to do during a clutch job.
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