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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Retrieve PID Information

This test is used to verify operation of input circuitry to the module being tested.
1. Perform Hookup and Vehicle Selection.

NOTE: The ignition switch must be in RUN position or test will fail.

2. Rotate dial to menu item "Diagnostic Data Link" and press trigger.
3. Select module by rotating dial to highlight module and press trigger.
4. Rotate dial to highlight menu item "PID/Data Monitor and Record," press trigger.
5. Select PID acronyms by rotating dial to highlight a PID and then press trigger. Repeat this process until all desired PIDs are selected. (* -indicates that a PID has been selected.)
6. Press Button 7 to view all selected PIDs.