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
Tachometer
The tachometer displays the engine speed in RPM. The voltage pulses are taken from the
PCM and sent to the tachometer. The tachometer responds to the frequency of the voltage pulses that increase with the engine speed. The solid state circuits process the pulses into a signal that drives the tachometer.