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Home >> Ford >> 2004 >> Freestar SES >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Test >> Pinpoint Test M: DTC C1991 - Module Calibration Failure >> Normal Operation
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Normal Operation

The stability assist system needs to be recalibrated whenever a component specific to the system is disconnected or a new component is installed.