Circuit Description

Vehicle Speed Sensor (VSS) is a permanent magnet generator that is mounted on transaxle. VSS produces a pulsing voltage whenever vehicle speed is greater than 3 MPH. A/C voltage and number of pulses increases with vehicle speed. Powertrain Control Module (PCM) then supplies VSS signal to instrument cluster for speedometer, odometer, electronic transaxle (if equipped) and cruise control operation.

Conditions for setting this DTC are as follows:

• Vehicle speed less than 2 MPH.
• Engine speed is between 1700 and 3600 RPM.
• Manifold absolute pressure is greater than 72 kPa or less than 80 kPa.
• TP sensor is between zero percent and one percent.
• Listed conditions met for greater than 5 seconds.
• No presence of Codes: P0107, P0108, P0122, P0123.