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

PEM Temp Readings

Discussion in 'Roadster: Technical' started by Aspirant, Jul 17, 2012.

  1. Aspirant

    Aspirant Member

    Jul 1, 2010
    My PEM never seems to go below the third blue bar and also rarely goes above it. That doesn't seem right — that after a 75 degree night, I walk out in the early AM to find the PEM on 3rd blue. And if I walk out to the car in the middle of a 100 degree day with the car parked in full sun, I find the PEM on 3rd blue.

    Shouldn't the PEM temp be a little more fluid? Dropping below 3rd blue on those cooler nights and going above it on those wicked hot days?
  2. Doug_G

    Doug_G Lead Moderator

    Apr 2, 2010
    Ottawa, Canada
  3. W.Petefish

    W.Petefish Active Member

    Apr 29, 2011
    That behavior is normal. BUT I'd keep an eye on it. Not too much farther and you might experience Temp faults.
  4. driver_EV

    driver_EV Member

    Dec 7, 2011
    Charleston, South Carolina
    Sharing experiences with my Roadster, mine does fluctuate. It does go to 2nd bar eventually after cooldown, and I get up to 4th bar driving around on hot/warm days. (2011 Roadster may be different from yours, in case that matters)

    Aspirant, Just realized your vehicle may be idle for the conditions you are talking about.

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.