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P0501

DTC P0501 Vehicle Speed Sensor Circuit Malfunction

DESCRIPTION
The Wheel Speed Sensor (WSS) generates a waveform with a frequency according to the speed of the vehicle. The signal generated by WSS informs the ECM not only the vehicle speed is low or high but also the vehicle stops or not. The ECM uses this signal to control fuel injection, ignition timing, transmission/transaxle shift scheduling and torque converter clutch scheduling. Also the WSS signal is used to detect rough road driving condition.

DTC Detecting Condition:






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INSPECTION PROCEDURE