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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Speedometer Module: Description and Operation

The speedometer receives a signal from the vehicle speed sensor on circuit G7. Circuit G7 also connects to the Powertrain Control Module (PCM) at cavity 47.

Circuits F87 from fuse 21 in the fuse block and circuit G5 from fuse 22 in the fuse block supply voltage to the speedometer. Circuits F87 and G5 are HOT when the ignition switch is in the START or RUN position. Circuit Z2 provides ground for the speedometer.