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Diagnosing starpoint connector Cascadia/Coronado

Discussion in 'Freightliner Forum' started by Detroit1#, Jun 11, 2015.

  1. Jun 11, 2015 #1
    Detroit1#

    Detroit1# Bobtail Member

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    Jun 11, 2015
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    How do I test one of these PTCAN starpoint connectors to tell if its bad or not??
     
    Detroit1#, Jun 11, 2015
    Detroit1#, Jun 11, 2015
    #1
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  3. Jun 11, 2015 #2
    mhyn

    mhyn Road Train Member

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    Northridge, CA
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    find in this forum user by name Pablo-UA. he is a Starpoint specialist.
     
    mhyn, Jun 11, 2015
    mhyn, Jun 11, 2015
    #2
    Detroit1# Thanks this.
  4. Jun 11, 2015 #3
    Chip S

    Chip S Light Load Member

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    May 27, 2013
    Texas
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    Disconnect the 21 pin mcm connector and measure resistance between pins 19 and 13. Should have 60 ohms. You have two terminating resistors. One in the ACM and one in the CPC. So measuring at the MCM will check the whole backbone. If you have a DT12 trans, You would need to measure your CAN wires there too. What is going on with your truck?
     
    Chip S, Jun 11, 2015
    Chip S, Jun 11, 2015
    #3
    GrapeApe, ipogsd and mhyn Thank this.
  5. Jun 12, 2015 #4
    Detroit1#

    Detroit1# Bobtail Member

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    Jun 11, 2015
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    I am having trouble with the ACM connecting, I have followed the wiring schematic and no luck, thought it was possibly the starpoint connector
     
    Detroit1#, Jun 12, 2015
    Detroit1#, Jun 12, 2015
    #4
  7. Jun 15, 2015 #5
    mhyn

    mhyn Road Train Member

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    Dec 29, 2008
    Northridge, CA
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    if you have replaced the acm it must be reprogramed by ddrs or diagnosticlink.
     
    mhyn, Jun 15, 2015
    mhyn, Jun 15, 2015
    #5
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