Speedometer not working

2006 CHEVROLET OPTRA
40,000 MILES
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DAN7
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Your question: "I have an chevy optra 2006! The problem with it is the speedometer not working and it drives only in 1,2,3 gear! 4 and 5 dosent work it is a automatic car. What can cause this problem???"
Mar 4, 2012 at 9:03 PM
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SATURNTECH9
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Have you checked for codes yet?You could a speed sensor issue.
Mar 4, 2012 at 9:05 PM
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DAN7
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Yes it did! I have a Computer that detects what problem the car could have and when i hooked it up it detected the speed sensor output could this cause this problem?
Mar 4, 2012 at 9:12 PM
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SATURNTECH9
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Alright how about sharing the exact code number your code scanner gave you?It will start with a P followed by a four digit number.
Mar 4, 2012 at 9:17 PM
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DAN7
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Its PO502
Mar 4, 2012 at 9:18 PM
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SATURNTECH9
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Do you have the 1.8L or 2.0L engine?
Mar 4, 2012 at 10:51 PM
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DAN7
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A 2.0 pleae let know as soon as possiable when u know what the problem could be
Mar 4, 2012 at 11:04 PM
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SATURNTECH9
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I posted a tree to tell if its the speed sensor or wiring pcm etc.Let me know what you find.
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Mar 4, 2012 at 11:37 PM