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)

Or, hide this message: temporarily or permanently

Ignition Cable: Testing and Inspection




Measure resistance of high-tension cord by using ohmmeter.

High-tension cord resistance: 4 - 10 kOhms./m (1.2 - 3.0 kOhms./ft)

Check for damage, deterioration and terminal corrosion.

If check result is not satisfactory, replace high-tension cord(s).