Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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Ignition Cable: Testing and Inspection

CAUTION: Carefully remove the ignition wires by pulling on the rubber boots. Do not bend the wires; you might break them inside.

Ignition Wire Inspection And Test:




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.

Ignition Wire Inspection And Test:




2. Connect ohmmeter probes and measure resistance.

Ignition Wire Resistance: 25 k ohms max. at 68°F (20°C)

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