1. Attachments are working again! Check out this thread for more details and to report any other bugs.

T-SB-0047-09 IG1 Relay Freezing

Discussion in 'Toyota Prius Service Bulletins - TSBs' started by Patrick Wong, Jan 13, 2010.

  1. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,482
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Alaskans, Canadians, and northern 48 state US owners that face sub-freezing weather, take note.

    2006-2009 Prius: IG1 relay may freeze up when temperature drops below 14 degrees F (-10 degrees C). The symptoms are that multiple warning lights will appear and the car will not shift from P to D. Accessories may not work.

    The solution is to install a new IG1 relay, which has a different part number.
     

    Attached Files:

    #1 Patrick Wong, Jan 13, 2010
    7 people like this.
  2. firepa63

    firepa63 Former Prius Owner

    Joined:
    Jul 23, 2005
    1,761
    208
    0
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Good info...
     
    #2 firepa63, Jan 13, 2010
  3. usbseawolf2000

    usbseawolf2000 HSD PhD

    Joined:
    Sep 22, 2004
    14,487
    3,000
    0
    Location:
    Fort Lee, NJ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    The replacement part retails $65. I am way beyond 36 months / 36k miles coverage.

    I have never gotten multiple warning light nor an issue with shifting from P to D. However, I was unable to press radio related buttons. Even the radio power button did not work. I was able to operate from the steering wheel buttons. After a couple of miles they were all fine.

    I have experience this only once and never since then.
     
    #3 usbseawolf2000, Jan 13, 2010
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,482
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    If the problem returned, a short-term solution might be to strike the instrument panel above your left knee (when sitting in the driver's seat) - maybe that will jog IG1 into working! :D
     
    #4 Patrick Wong, Jan 13, 2010
  5. usbseawolf2000

    usbseawolf2000 HSD PhD

    Joined:
    Sep 22, 2004
    14,487
    3,000
    0
    Location:
    Fort Lee, NJ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Open the fuse box and hold IG1 with your fingers to warm it up. That should do the trick.
     
    #5 usbseawolf2000, Jan 13, 2010
  6. Flying White Dutchman

    Flying White Dutchman Senior Member

    Joined:
    Dec 29, 2007
    4,374
    313
    0
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    ok good tip
     
    #6 Flying White Dutchman, Jan 13, 2010
  7. dogfriend

    dogfriend Human - Animal Hybrid

    Joined:
    Feb 26, 2007
    7,512
    1,188
    0
    Location:
    Carmichael, CA
    Vehicle:
    2007 Prius
    Or move to a warmer climate. :madgrin:
     
    #7 dogfriend, Jan 13, 2010
(You must log in or sign up to post here.)