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tundra warning lights on

Discussion in 'General Tundra Discussion' started by gringo, Apr 1, 2016.

  1. Apr 1, 2016 at 10:51 AM
    #1
    gringo

    gringo [OP] New Member

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    cliff
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    On occasion while driving at hi way speeds the warning lights come on , the tach goes from 0 to 3000 , and then all is fine ? What is going on and how does one trouble shoot ? Any and all ideas appreciated. Thanks
     
  2. Apr 1, 2016 at 1:07 PM
    #2
    Sean266

    Sean266 #ThinBlueLine Staff Member

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  3. Apr 1, 2016 at 2:15 PM
    #3
    gringo

    gringo [OP] New Member

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  4. Apr 1, 2016 at 2:16 PM
    #4
    Sean266

    Sean266 #ThinBlueLine Staff Member

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  5. Apr 1, 2016 at 2:16 PM
    #5
    gringo

    gringo [OP] New Member

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    No warning lights at all. All that is in the scanner are pending or past codes but the panel is clear .
     
  6. Apr 1, 2016 at 2:50 PM
    #6
    ColoradoTJ

    ColoradoTJ Calm your tits

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    Wonder if it is a cluster ground?
     
  7. Apr 2, 2016 at 7:01 AM
    #7
    gringo

    gringo [OP] New Member

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    cliff
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    Not sure what a cluster ground is, but, I have noticed that on occasion the battery is not fully charged and when I check the alternator output it is very erratic. Some times just making battery voltage and then jumps up to 13. 8 and even 14.01 briefly. The next time I check the system it is running even at 14 volts ??? New AGM Odyssey battery 6 months ago. Can a bad alternator behave this way with the warning light and tach/speedo jumping around and then all settles down?
     
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