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)
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A/C Pressure Cycling Switch
A/C Control Circuit:
The A/C pressure cycling switch, located on the suction tube near the accumulator, is a normally open switch that closes when there is sufficient refrigerant charge (greater than approx. 25 psi). When the A/C control switch is turned "ON" and the pressure cycling switch is closed, a request signal is sent to the
PCM, which energizes the A/C compressor clutch.
