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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Continuously Variable Transaxle (CVT) On-Vehicle Service - With Diagnostics) >> Diagnosis < CVT > >> Diagnostic Trouble Code Procedures >> DTC P1778: Malfunction of Stepper Motor Function >> Diagnostic Function

Diagnostic Function

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

TCM conducts the fault detection of the stepper motor by comparing the target value of the primary pulley speed with the actual value. (Target value: Actual secondary pulley speed multiplied by gear ratio corresponding to stepper motor position) (Actual measurement value: Actual primary pulley speed)

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