Operation CHARM: Car repair manuals for everyone.

Ignition Control Module: Testing and Inspection



1. Disconnect power transistor harness connector.

Power Transistor Test:




2. Check power transistor continuity between terminals with a Digital Volt Ohm Meter (DVOM) tester as shown in the figure.

Power Transistor Test:




NOTE: The digital tester must have a diode check position to perform this test.