Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Vehicle Speed Sensor: Description and Operation

Purpose:
The vehicle speed sensor (VSS) is a variable reluctance pulse generator that senses the transaxle output.

Operation:
It operates between 0-161 km/h (0-120 mph).

The VSS informs the PCM of vehicle speed.

The PCM uses VSS input to provide vehicle speed to the instrument cluster for the speedometer. On vehicles equipped with cruise control, this signal also goes to the cruise control module and PCM.