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)
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Vehicle Speed Sensor: Description and Operation
Vehicle Speed Sensor:
The
Vehicle Speed Sensor (VSS) is driven by the output shaft of the transaxle and sends eight pulses of alternating current to the speedometer for every one rotation of the driven gear. The speed signal is also sent to the speed control module, if equipped. The powertrain control module uses the signal sent to the speedometer to determine vehicle road speed.
