Ignition System

Igniter Unit Input Test

NOTE:
•   See section 11 when the self-diagnostic indicator blinks.
•   Perform an input test for the igniter unit after finishing the fundamental tests for the ignition system and the fuel and emissions systems.
•   The tachometer should operate normally.

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

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

3. Turn the ignition switch ON. Check for voltage between the BLK/YEL wire and body ground. There should be battery voltage.
• If there is no battery voltage, check the BLK/YEL wire between the ignition switch and the igniter unit.
•   If there is battery voltage, go to step 4.

4. Turn the ignition switch ON. Check for voltage between the WHT/BLU wire and body ground. There should be battery voltage.

•   If there is no battery voltage, check: - Ignition coil.
- WHT/BLU wire between the ignition coil and the igniter unit.
•   If there is battery voltage, go to step 5.
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.