Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Transmission Speed Sensor: Description and Operation
DESCRIPTIONThe Vehicle Speed Sensor (VSS) is a hall effect sensor mounted above the transaxle differential. The sensor is triggered by the ring gear teeth passing below it. The
VSS pulse signal to the speedometer/odometer is monitored by the PCM speed control circuitry to determine vehicle speed and to maintain speed control set speed.