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TACH AND SPEEDOMETER QUIT WORKING AT SAME TIME!!
Tach and Speedometer quit working at same time. Not getting any codes for this. They’ve just stopped working. Any ideas on a fix? I’ve checked CB39 not thrown and reset it.
1997 Prevost XL LeMirage
Thanks in advance,
Lisa
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2 Replies
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Just guessing to help you out. Ground under the dash panel? If both units share a common ground, that might be in.
Another guess is there might be common wire/cable to the chassis computer that could have come unplugged.
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Like Dick said, maybe a loose ground. I can’t remember exactly, but we had one, or the other, or both act up on our bus many years ago. Removed the screws that hold that section of the dash on, tilted it back and tightened any and all grounds I could find. We haven’t had a problem since. Good luck.
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