TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Powertrain Problem ID: 963

Discussion in 'Roadster: Technical' started by tvuolo, Nov 1, 2015.

  1. slcasner

    slcasner Active Member

    Feb 20, 2011
    Sunnyvale, CA
    As I said in my post #8, the probable cause was a momentary drop in the input voltage causing more current to be drawn to maintain the same power level. There was a firmware update (3.5.17) in May, 2010 to improve the timing loop of the charge algorithm to prevent that behavior. Is it possible that the firmware in your car has not been updated since then? Seems unlikely. I would not expect fuses to fail due to age, though.
    • Informative x 1
  2. PV-EV

    PV-EV Member

    Jun 3, 2011
    Also, I believe those are Class T fuses which are extremely fast acting. Used for high fault current protection. For anyone else looking for replacements they can be bought online for about $50.

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.