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OBDII error - No communication

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Fishcraft, Apr 15, 2011.

Page 2 of 2
  1. Dec 27, 2021 at 9:39 PM
    #21
    BilboT34Baggins

    #21
    BilboT34Baggins Member

    Joined:
    Nov 7, 2019
    Member:
    #310092
    Messages:
    9
    Gender:
    Male
    Vehicle:
    2013 Tacoma TDR Offroad Automatic. 2.5" lift in the front, 3" lift I the rear, 285/75r16 BFGs
    Bought it with drop bracket lift and BFGs (good find). Took it to a shop to weld on a stock frame bracket to undo the drop bracket lift and install a proper spring lift. Hoping to regear to 4.56 and put on front and rear bumpers in the future. Also, of course hoping for a supercharger someday.
    Yeah I don't have a great scan tool, just a Bluetooth obdii scanner and the torque app. I can't get the scanner to finish scanning for the right comms signal type and communicate. Checked resistances and scope readings and they all look good. I can't speak to whether it's receiving data from each ecu in the network though.
     
    BilboT34Baggins, Dec 27, 2021
    #21
  2. Dec 27, 2021 at 9:57 PM
    #22
    Dm93

    #22
    Dm93 Test Don't Guess

    Joined:
    Mar 3, 2015
    Member:
    #150066
    Messages:
    12,828
    Gender:
    Male
    Texas
    Vehicle:
    2014 DC OR 6spd 4x4
    Predator tube steps, Ranch Hand grill guard, Magnaflow CatBack exhaust, Toyota tool box & bed mat, 2LO Module by @Up2NoGood, Rearview Compass/Temp Mirror, Tune by @JustDSM.
    Yea if the network signals look good you really need a scanner that's capable of talking to all the modules and seeing which ones talk and which ones don't.
    Diagrams attached below if it helps.
    It looks like the CAN lines for the ECM go through the J19 connector, it might be worth unplugging and having a look for corrosion.
     

    Attached Files:

    Dm93, Dec 27, 2021
    #22
  3. Dec 28, 2021 at 6:42 AM
    #23
    BilboT34Baggins

    #23
    BilboT34Baggins Member

    Joined:
    Nov 7, 2019
    Member:
    #310092
    Messages:
    9
    Gender:
    Male
    Vehicle:
    2013 Tacoma TDR Offroad Automatic. 2.5" lift in the front, 3" lift I the rear, 285/75r16 BFGs
    Bought it with drop bracket lift and BFGs (good find). Took it to a shop to weld on a stock frame bracket to undo the drop bracket lift and install a proper spring lift. Hoping to regear to 4.56 and put on front and rear bumpers in the future. Also, of course hoping for a supercharger someday.
    Thanks Dm93, I'll try futzing with the J19 connector today before I go get a nicer scan tool.
     
    BilboT34Baggins, Dec 28, 2021
    #23
  4. Dec 28, 2021 at 6:48 AM
    #24
    knayrb

    #24
    knayrb Well-Known Member

    Joined:
    Mar 3, 2010
    Member:
    #32473
    Messages:
    2,218
    Gender:
    Male
    First Name:
    Bryan
    Somewhere in the square states
    Vehicle:
    2010 Dbl-Cab Off-Road
    Pure stock
    I had this issue on a previous vehicle. The fix was some electrical cleaner spray in the port. Those ports are open and will collect all kinds of dust and dirt.

    [​IMG]
     
    knayrb, Dec 28, 2021
    #24
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