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Home >> Mitsubishi >> 2015 >> Lancer Evolution GSR >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Active Stability Control System (ASC) - With Diagnostics - Lancer Evolution >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC C121A: Abnormality in steering wheel sensor initialization >> Circuit Operation
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Circuit Operation

Steering wheel sensor stores the neutral position learned using scan tool MB991958. When the neutral position has not been learned, the steering wheel sensor outputs the signal indicating that the learning has not been performed.