Ignition Control Module: Testing and Inspection

Ignition Igniter Wiring:

1. Remove the distributor cap, rotor and the inner cover.

2. Disconnect the BLK/YEL, GRN, YEL/GRN and BLU wires from the igniter unit.

3. Turn the ignition key ON. Check for battery voltage between the BLK/YEL wire at the igniter unit and body ground. If voltage is present, go to STEP 2. If there is no voltage, check for an open circuit in the BLK/YEL wire between the igniter unit and the ignition coil.

4. Turn the ignition switch ON. Check for voltage between the GRN wire and body ground. Battery voltage should be present. If there is no battery voltage, check the ignition coil and the GRN (BLU) wire between the ignition coil and the igniter unit.

5. Check the YEL/GRN wire between the PGM-FI ECU and the igniter unit.

6. Check the BLU wire between the tachometer and the igniter unit.

7. If all tests are normal, replace the igniter unit.