Operation CHARM: Car repair manuals for everyone.

Ignition Cable: Testing and Inspection

CAUTION: Carefully remove the ignition wires by pulling on the rubber boots. Do not bend the wire or the conductor may be broken.

Typical Wire Inspection:





1. Check the condition of the wire terminals. If any terminal is corroded, clean it and if it is broken or distorted, replace the wire.

Typical Wire Inspection:





2. Connect ohmmeter probes and measure resistance.

Resistance: 25K ohms max. at 70~F (20~C)

3. If resistance exceeds 25,000 ohms, replace the ignition wire.