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

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Tests JB: Secondary Ignition (COP)



PINPOINT TEST JB: SECONDARY IGNITION (COP)

CAUTION: A malfunctioning ignition system may cause high catalyst temperatures. Check the components next to the catalyst and muffler for heat damage.

This pinpoint test is intended to diagnose the following:

^ spark plugs (12405)
^ secondary side of the coil

Reference:





JB1 - JB4:





JB5 - JB6:





JB7 - JB8:





JB9 - JB11:





JB12 - JB15:





JB16 - JB17: