2000 Lexus Gs 300 Speedometer Stoppes Working Once Hit 65mph Come Stop Start S

2000 LEXUS GS 300
13,000 MILES
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DHASIPI
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  • 2 POSTS
My speedometer stoppes working once I hit 65mph then when I come to a stop it start s again
Mar 16, 2013 at 8:44 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
Do you have any codes?also after you go past 65mph the speedometer drops to zero?
Mar 16, 2013 at 8:55 AM
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DHASIPI
  • MEMBER
  • 2 POSTS
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
Mar 21, 2013 at 8:42 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
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.
Mar 21, 2013 at 5:48 PM
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