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 Data Definitions




Scan Tool Data Definitions

Intelligent Switching Unit (ISU)

Wiper Park Switch

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The scan tool displays Active or Inactive. When the wipers are parked, the scan tool will display Active. When the wipers are operating, the scan tool will display Inactive.

Wiper Switch

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The scan tool displays OFF, Delay or ON. When the switch is turned to the INT position from OFF, the scan tool displays Delay. When the windshield wiper/washer switch is turned to the wash, low, or high positions the scan tool displays ON. Anytime the switch is in the off position the scan tool displays OFF.

Wiper Washer Switch

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The scan tool displays Active or Inactive. When the washer switch is engaged, the scan tool will display Active. When the switch is disengaged, the scan tool will display Inactive.