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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Symptom Related Diagnostic Procedures






NOTE: Keep the driver window rolled down during the Pinpoint Test to avoid being locked out of the vehicle.

Check that battery is fully charged (if not, it may be causing the concern).

Disconnect and reconnect battery to make sure system is reset.

CAUTION: Do not replace parts unless test results say they should be replaced.

NOTE: Voltage and resistance readings can be obtained using Rotunda Digital Volt-Ohmmeter 014-00407 or Rotunda Inductive Dwell-Tach-Volt Ohms Tester 164-R0254 Or equivalent