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

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Primary Coil and Ignition Power Transistor Continuity Check






NOTE: An analog-type ohmmeter should be used.

NOTE: Connect the negative (-) probe of the ohmmeter to terminal 1.






CAUTION: This test must be performed quickly (in less than 10 seconds) to prevent coil from burning and ignition power transistor from breaking.