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
CKP sensor is used as an input for tachometer information. The CKP sensor sends the EI module an A/C voltage signal, which it converts to a Pulse Width Modulated
(PWM) 0 to 5 volt square wave received by the PCM. The PCM uses the PWM square wave from the EI module to calculate RPM. The PCM sends an averaged tachometer message to the I/P cluster over the Class II link every
100 ms. The PCM averages the tachometer information to ensure smooth tachometer fluctuations.