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Pinpoint Test T: Control Module Internal Faults

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Normal Operation and Fault Conditions 

    The TCCM and ATCM monitor the internal circuitry and memory for errors. If a fault is detected multiple times, a DTC is set.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    ATCM U2009:9E Rotary Encoder: Stuck On The ATCM has detected a short or open circuit for the rotary encoder optical sensor. The fault is internal to the ATCM. INSTALL a new ATCM. REFER to: All Terrain Control Module (ATCM) - Vehicles With: Center Console .
    ATCM U2002:9E Switch: Stuck On The ATCM monitors the switch input every 10 ms. If the switch contacts are closed for more than 2 minutes, the ATCM will store a DTC. Mode selection will not be possible by pressing the button. CLEAR the DTC and CARRY OUT the DTC On Demand self-test. If the DTC sets, INSTALL a new ATCM. REFER to: All Terrain Control Module (ATCM) - Vehicles With: Center Console .
    ATCM U3000:49 Control Module: Internal Electronic Failure This DTC sets if an internal error is detected while the clutch is on. INSTALL a new TCCM. REFER to: All Terrain Control Module (ATCM) - Vehicles With: Center Console .
    TCCM U3000:04 Control Module: System Internal Failures This DTC sets if an internal error is detected while the clutch is on. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) .
    TCCM U3000:46 Control Module: Calibration/Parameter Memory Failure This DTC sets if the two-point motor or clutch calibration is invalid. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) .
    TCCM U3000:47 Control Module: Watchdog/Safety μC Failure This DTC sets if voltage levels vary across different internal circuit. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) .

    Possible Sources 

    • ATCM
    • TCCM

  2. Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods 

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