1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Throttle Body Connector Test to Ground

Discussion in 'Electrical' started by xinoki, Aug 20, 2022.

  1. Aug 20, 2022 at 7:49 PM
    #1
    xinoki

    xinoki [OP] New Member

    Joined:
    Nov 16, 2018
    Member:
    #21805
    Messages:
    11
    Gender:
    Male
    2011 Tundra 5.7 Crewmax Gas.

    I am testing my wiring to the throttle body connector. When I check D9-6 to Body Ground I get O.L on multimeter. It says to repair or replace harness or connector. I am reading as a continuity to ground issue somewhere. Not sure where to check for issue or mistake. The WIre from the connector to ECU has continuity. Any help appreciation. I have attached image of charge to wire checks.

    12DE2394-E1D2-40BC-94AA-5DC54C7AF56F.jpg
     
  2. Aug 22, 2022 at 8:51 AM
    #2
    Jeff_5_7

    Jeff_5_7 New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,433
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    Check it at the ECM terminal D74 pin #78, do you get the same result? Are you sure your meter is setup properly range wise? Should be reading 10K Ohm or higher according to your table.

    Are you having issues with the throttle position sensor?
     
  3. Aug 22, 2022 at 6:55 PM
    #3
    xinoki

    xinoki [OP] New Member

    Joined:
    Nov 16, 2018
    Member:
    #21805
    Messages:
    11
    Gender:
    Male
    Thanks for the feedback. I was able to clean it and get the correct reading. I am having issues somewhere. I have multiple codes related to Throttle/Pedal sensor: P02135, P0122, P0121, P0123, P0222. Currently the P0123 is not showing. It’s a new factory Throttle Body and Pedal Sensor. It’s currently in limp mode. I did a repair on the timing chain tensioner and when I got it back together it started having hesitation in acceleration. I have been chasing this problem for awhile and tried many things. I am at a loss what to do. Any assistance is greatly appreciated. I am in Houston area too (Pasadena).
     
  4. Aug 22, 2022 at 7:01 PM
    #4
    Jeff_5_7

    Jeff_5_7 New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,433
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    Absolute first thing I would do is check every fuse in both fuse boxes. Under the hood and under the dash.

    Did you verify the throttle body is getting 12v power with key on? If you pull the intake tube off, turn the key on, can you see the butterfly valve open and close as someone hits the gas pedal? Does it move smoothly and uniformly?

    You could also look on YouTube for a video on how to do a throttle body relearn for the ECM. That could be worth a shot.
     
  5. Aug 23, 2022 at 3:51 PM
    #5
    xinoki

    xinoki [OP] New Member

    Joined:
    Nov 16, 2018
    Member:
    #21805
    Messages:
    11
    Gender:
    Male
    Thanks for the feedback. I appreciate it. I will try relearn. I pretty sure its a wiring issue somewhere just not sure where. Thanks again.
     

Products Discussed in

To Top