Operation CHARM: Car repair manuals for everyone.
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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Mileage Calibration Switch: Testing and Inspection




Inspection
1. Connect the special service tool (SST) (Engine Signal Monitor) to the powertrain control module engine (PCME).
2. Turn the ignition switch to ON.

B+: Battery Positive Voltage:




3. Measure the voltage at PCME terminal (1N) within the first two seconds after the ignition switch is turned to ON.