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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Scan Tool Hook-Up

Connect the scan tool to the diagnostic connector located in the engine compartment. The separate red clip is connected to the positive post of the battery.

With the scan tool properly connected, all character positions on the display should briefly illuminate, and the copyright message should appear.

NOTE: At any time after the copyright screen, the user may press the F3 key for help.

A commonly reported problem is that the scan tool screen is blank. If the screen is blank after the scanner is attached to the vehicle, do the following:

- Make sure all cable connections are properly seated and fit snugly.
- Make sure the cables are in good condition (no broken or shorted wires).
- Make sure the cartridge is installed properly into the scan tool.
- Try the scan tool on another vehicle. If the scan tool screen is still blank, have the unit repaired. If it now performs properly, continue with next step.

Data Link Connector Identification:




- Make sure all cable connectors are in good condition (no flared or pushed out terminals). If the connector is good, continue with next step.

On-Board Diagnostic Connector Identification (Wire Color May Vary By Model):




- Check the BK/WT wire in the diagnostic connector for continuity to ground.