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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Ignition Spark Test

INSPECTION
1. Connect ignition coil coupler to ignition coil and connect spark plug to ignition coil.
2. Ground them as shown in figure.
3. Crank engine and check if each spark plug sparks.
If no spark is emitted, inspect spark plugs, ignition coils, CMP sensor, igniter, etc.