2013 Cascadia ambient sensor

Discussion in 'Freightliner Forum' started by VETRUNNERS, Mar 14, 2017.

  1. VETRUNNERS

    VETRUNNERS Bobtail Member

    1
    0
    Mar 14, 2017
    0
    Son I replaced the ambient sensor, passenger side behind the bumper held by a torn screw and a nut behind the cross member, I checked the voltage on the pig tail and read 4.8v. I'm still getting a fault code for Ambient sensor and the A/C is not working. I recently that as well. Anyone have any more ideas.
     
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  3. Mr suave

    Mr suave Bobtail Member

    11
    1
    Mar 12, 2017
    Canada
    0
    Try to detach the cable wire from batteries it might do a trick to restart your Ecm?
     
  4. SLCTrucker

    SLCTrucker Medium Load Member

    404
    199
    Jan 15, 2009
    Salt Lake City UT
    0
    Did you check the voltage using the plug ground or did you use another ground somewhere else?

    Some trucks may have the ambient air temperature sensor harness routed such that it can be chaffed on a radiator baffle. If the harness is rubbed through, the ac may not function.
     
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