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

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Control Module: Testing and Inspection

4WD CONTROL MODULE INSPECTION
1. Turn the ignition switch to ON. Measure the 4WD control module terminal voltages, referring to the Terminal voltage chart.





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2. If not as specified, inspect, repair, or replace the component(s), wiring, and/or 4WD control module.