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
If it fails: lemon-manuals.org.ua

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Initial Inspection and Diagnostic Overview

1. Verify the customer's original concern.
2. Inspect to determine if one of the following electrical concerns apply:

VISUAL INSPECTION CHART

Electrical
- Check electrical connections for obvious damage, opens or shorts.

3. Inspect Pin 2, Pin 7 and Pin 10 on the Data Link Connector (DLC) for loose, bent, deformed, corroded or broken pins. If pin is damaged, service or replace pin, verify communication with Rotunda New Generation Star Tester 007-00500 or equivalent.
4. If the concern(s) remains after the inspection, continue with New Generation Star Tester Driven Diagnostics. New Generation Star Tester Driven Diagnostics Vehicle Set Up