Ignition Control Module: Testing and Inspection

Ignition Coil And Power Transistor Circuit:

To test the Power Transistor / Ignition Coil, located in the distributor, use an analog type circuit tester and proceed as follows:

Component Test:

POWER TRANSISTOR
1. Disconnect the power transistor / ignition coil connector.
2. Connect a power supply of 1.5v (one dry cell) between power transistor terminals 2 (-) and 1 (+).
3. Check for continuity between terminals 2 and 3.

Continuity: Should exist

4. Remove power from terminals 1 and 2.
5. Check for continuity between terminals 2 and 3.

Continuity: Should not exist