C15 fault codes

Discussion in 'Trucks [ Eighteen Wheelers ]' started by WREN, Jan 13, 2018.

  1. WREN

    WREN Light Load Member

    Jul 17, 2017
    Florida panhandle
    Ok guys, my 2000 pete with the c15 6nz has three codes that I need to know what they mean since I do not know. They are

    27 CTS Open Circuit or CTS Short Circuit

    42 Boost Pressure Sensor Calibration or Check Timing Sensor Calibration

    56 Check Customer Or System Parameters or
    Check Transmission Customer Parameters
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