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
Cranking Signal: Description and Operation
The
ignition switch ON signal informs the Control Unit to position the idle speed control components, then relays an ignition pulse reference signal for cranking when the switch is turned to the START position. This signal also energizes the MPI System Relay and the fuel pump control relay.