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 Signal: Description and Operation
A/C Circuit:
PURPOSE When received by the ECM, the A/C switch signal causes the ECM to make adjustments needed (such as raise
idle speed) to compensate for the added load. When the ECM receives a "full open" signal from the
throttle position sensor while the A/C is operating, the A/C cut
relay turns off the compressor for a certain period. This improves full-throttle acceleration.
