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
ECT Sensor ReplacementThis signal is sent from the engine starter circuit. Once the signal is received, the
Powertrain Control Module (PCM) detects that the engine is cranking and will use the PCM as one of the signals to control the fuel injection timing and the Idle Air Control
(IAC) valve operation.