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Pinpoint Test M: DTC C1998 - Module Calibration Not Complete

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The stability assist lamp flashes when a system calibration is required. Calibration is required after certain DTCs are cleared.
NOTE: Make sure the vehicle is not on a hoist and is sitting on level ground before carrying out the anti-lock brake system (ABS) module calibration.
  1. M1 CHECK FOR DTCs 
    • Connect the diagnostic tool.
    • Key in ON position.
    • Check the recorded results from the smart junction box (SJB) self-test:
    • Is any other DTC retrieved with C1998? 
    • Yes  : GO to the appropriate pinpoint test for the DTC.

      Some of the pinpoint tests recommend anti-lock brake system (ABS) module calibration prior to any further diagnostics; in this case, GO to M2.

    • No  : GO to M2.
  2. M2 ABS MODULE CALIBRATION 
    • Connect the diagnostic tool.
    • Start the engine.
      • NOTE: Be sure to rotate the steering wheel lock-to-lock during the calibration of the ABS system.
    • Carry out the ABS module calibration per the diagnostic tool instructions.
    • Did the calibration complete for all of the stability assist sensors and did the stability assist lamp turn off? 
    • Yes  : GO to M3.
    • No  : GO to  M4.

      Some concerns will cause the calibration to not complete. If sent here from another pinpoint test, RETURN to that pinpoint test for further diagnostics.

  3. M3 CLEAR DTC C1998 
    NOTE: Clear DTC C1998 after completing the calibration.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Clear the DTC.
    • Did the DTC clear? 
    • Yes  : TEST DRIVE the vehicle. REPEAT the self-test.

      If sent here from another pinpoint test, RETURN to that pinpoint test for further diagnostics.

    • No  : GO to M4.
  4. M4 MONITOR THE STEERING POSITION SENSOR PIDS 
    • Key in ON position.
    • Monitor the ABS module steering position sensor PIDS while rotating the steering wheel clockwise and counterclockwise.
    • Are the 2 steering position sensor PID values switching as the wheel rotates? 
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