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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temporarily or
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Vehicle Speed Signal Description
The Vehicle Speed Sensor (
VSS) mounts onto the automatic transaxle. The VSS provides a low voltage Alternating Current (
AC) signal to the Powertrain Control Module (
PCM). The PCM converts the AC signal to a pulse width modulated Direct Current (
DC) signal. The PCM sends the DC signal to the
cruise control module at a rate of 4,000 pulses per mile.