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ABS PROBLEM!!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Perchie15, Jul 16, 2022.

Page 4 of 4
  1. Jul 21, 2022 #31
    Perchie15

    Perchie15 Light Load Member

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    Aug 16, 2021
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    I did it with another meter one is 1.90 other is 2.10. And I checked the pins C & D in the j1939. it’s about 1 Volt at the J1939 plug!! So there’s an issue somewhere! Not the computer though right?
     
    Perchie15, Jul 21, 2022
    Perchie15, Jul 21, 2022
    #31
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  3. Jul 22, 2022 #32
    Inderjit

    Inderjit Medium Load Member

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    Sep 17, 2017
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    With the key off measure between the J1939 pins and a good ground. You should get an infinite or close to it reading. I doubt there is a problem with any of the devices on the data link more likely a wiring problem.
     
    Inderjit, Jul 22, 2022
    Inderjit, Jul 22, 2022
    #32
  4. Jul 22, 2022 #33
    spsauerland

    spsauerland Road Train Member

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    I'd disconnect the ABS ECU and measure voltage @ DLC again.
     
    spsauerland, Jul 22, 2022
    spsauerland, Jul 22, 2022
    #33
  5. Jul 22, 2022 #34
    Perchie15

    Perchie15 Light Load Member

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    Aug 16, 2021
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    Yea same thing. 1.90 and 2.10 that was with a different meter. Likely more accurate one being snap on I hope.
     
    Perchie15, Jul 22, 2022
    Perchie15, Jul 22, 2022
    #34
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