MY SPEEDOMETER STOPPES WORKING ONCE I HIT 65MPH ...

2000 Lexus GS 300

Tiny

dhasipi

March, 16, 2013 AT 3:44 PM

My speedometer stoppes working once I hit 65mph then when I come to a stop it start s again

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Erratic Speedometer

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Speedometer

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3 Answers

Tiny

saturntech9

March, 16, 2013 AT 3:55 PM

Do you have any codes?Also after you go past 65mph the speedometer drops to zero?

Tiny

dhasipi

March, 21, 2013 AT 3:42 PM

Yes codes 420,446 once it passes 65 it drop down to zero I've changed the speed sensor on the tranny and still does it

Tiny

saturntech9

March, 22, 2013 AT 12:48 AM

The P 0420 is a cat code the P0446 is evap vent control fault neither will cause the speedo to stop working. You need to have a professional scan tool scan your car and not a diyer scan. The professional scan tool can scan all the computers for codes. The diyer scan tools can only scan generic obd2 codes.

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