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Battery light on Dash..while voltmeter shows 14v on idle..

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Mr.Tacoma, Jun 14, 2020.

  1. Jun 14, 2020 at 9:27 AM
    #1
    Mr.Tacoma

    #1
    Mr.Tacoma [OP] Well-Known Member

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    Hey folks,
    Batt light is ON in dash, checked the batt volt(12.7) while off & 14v while running means its receiving charge while running, Wonder why batt light is ON. Any thoughts appreciate.
     
    Mr.Tacoma, Jun 14, 2020
    #1
  2. Jun 14, 2020 at 9:27 AM
    #2
    Bishop84

    #2
    Bishop84 Well-Known Member

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    Connector to alternator corroded.
     
    Bishop84, Jun 14, 2020
    #2
    TnShooter and Muddinfun like this.
  3. Jun 14, 2020 at 5:40 PM
    #3
    joeyv141

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    joeyv141 Well-Known Member

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    Check alternator connections, not toyota specify but generally in my experience that means the alternator internal sensing circuits are bad.
    Replace alternator.
     
    joeyv141, Jun 14, 2020
    #3
    wilcam47 likes this.
  4. Jun 14, 2020 at 9:08 PM
    #4
    6 gearT444E

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    6 gearT444E Certified Electron Pusher

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    Check the G2 connector, namely pin 4, and associated wire (gray)

    upload_2020-6-15_0-6-34.jpg

    upload_2020-6-15_0-7-33.jpg
     
    6 gearT444E, Jun 14, 2020
    #4
    Jimmyh, Muddinfun and wilcam47 like this.

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