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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Component Tests and General Diagnostics

INSPECTION
1. Disconnect the PCM connector.
2. Connect the SST 49 UNO1 127 104 pin Breakout Box, or equivalent.
3. Measure the voltage at each terminal with a voltmeter.
4. If any PCM terminal voltage is incorrect, check the related input or output devices and wiring. If no problem is found, replace the PCM. (Refer to above.)