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
A/C Switch
A/C Control Circuit:
The A/C switch applies battery voltage to the A/C request terminal of the PCM. The PCM then turns the A/C clutch relay "ON" and modifies the signal to the idle air control valve to increase the idle speed. Increasing the idle speed is necessary to compensate for the added load on the engine and to ensure efficient operation of the A/C system.
