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
Crank Signal:
PURPOSE Provides an ignition
voltage signal to the ECM during cranking to allow enrichment and cancel diagnostics until the engine is running or 12 volts is no longer on circuit. This tells the ECM when the vehicle is in the starting mode.
