Code P024, Vehicle Speed Sensor (VSS) Circuit Problem: Action

PCM turns on MIL and disables Torque Converter Clutch (TCC) and cruise control for the entire ignition cycle. PCM will substitute a calculated vehicle speed based on transaxle input speed and the current gear commanded (gear ratio). PCM freezes transaxle in current gear and torque management is disabled.

1. If Code P025 is current, fault is present and can be diagnosed directly. If Code P025 is stored as history, refer to Code P075 to diagnose fault.
2. VSS will generate a frequency of greater than zero Hertz when spun by hand. If it does, PCM is faulty. If it does not, check circuit or sensor for open or short.