Operation CHARM: Car repair manuals for everyone.

Ignition Control Module: Testing and Inspection

1. Disconnect power transistor harness connector.
2. Check continuity between terminals using suitable digital ohmmeter, Figs. 2 and Figs. 4.

Fig. 2 Power Transistor Terminal:




Fig. 4 Power Transistor Testing Sequence:





3. If continuity is not as specified, replace power transistor.