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
Voltage Signal: Description and Operation
Electrical load signals (component "ON") are sent to the ECU from the headlight switch, blower motor switch, cooling fan switches and rear window defroster. When these loads are present, the ECU activates the idle speed control (ISC) valve as needed to maintain correct
idle speed.