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Pinpoint Test P: DTC C1998 Module Calibration Not Complete

NOTE: Stability assist lamp will flash when calibration is required. Roll stability control (RSC) calibration is required after certain DTCs are cleared.
NOTE: Make sure the vehicle is on level ground, not on a hoist, before carrying out the anti-lock brake system (ABS) module calibration.
  1. P1 CHECK FOR DTCS 
    • Connect the diagnostic tool.
    • Key in ON position.
    • Retrieve the DTCs.
    • Are any other DTCs retrieved with C1998?
  2. P2 ABS 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 stop flashing and go off?
    • Yes  : GO to P3.
    • No  : GO to P4.

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

  3. P3 CLEAR DTC C1998 
    NOTE: You must clear DTC C1998 after the completion of 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.
      NOTE: If sent here from another pinpoint test, return to that pinpoint test for further diagnostics.
    • No  : GO to P4.
  4. P4 MONITOR THE STEERING WHEEL ROTATION SENSOR PIDS 
    NOTE: You must clear DTC C1998 after the completion of the RSC calibration.
    • Key in ON position.
    • Monitor the ABS module steering position sensor PIDS while rotating the steering wheel clockwise and counterclockwise.
    • Are the two steering position sensor PID values switching as the wheel rotates?