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
The
VSS, located in the transaxle, provides vehicle speed information to the ECM. The ECM uses this signal to operate fuel economy data panel, integral cruise control, idle speed control system, VCC and to modify fuel delivery under certain conditions. A VSS buffer is installed between
speed sensor and ECM to amplify the signal.