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 Sensor provides PCME with a vehicle road speed signal. PCME uses this input in calculations for:
^
Fuel injection quantity
^
Ignition timing
^
Idle speed control
^
Purge control
LOCATION PCME picks up signal from speedometer assembly. Actual
speed sensor is located on transmission.
OPERATION Sensor on transmission is a magnetic pulse generator driven by the mainshaft.