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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Oscilloscope Patterns and Waveforms
Inspection Using An Oscilloscope (Reference) IGT1, IGT2 control signals PCM terminals IGT1 (No.1 and No.4): 1A(+) - 1D(-)
IGT2 (No.2 and No.3): 1B(+) - 1C(-)
Oscilloscope setting -
4 V/DIV (Y),
0.01 ms/DIV (X), DC range
Vehicle condition -
Idle after warm up (engine speed approx.
650 rpm, no load, P/S off, A/C off)
