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Home >> Mazda >> 1991 >> MX-5 Miata L4-1597cc 1.6L DOHC >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Ignition System >> Ignition Control Module >> Testing and Inspection
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Ignition Control Module: Testing and Inspection

Igniter Testing:






NOTE: This test requires Mazda Special Service Tools (SST) or aftermarket equivalents.

1. Disconnect igniter connector. Do not ground power connector terminal (Blue: 1-pin) or wiper 20A fuse will be blown.
2. Connect adapter (SST #49 N018 001) between igniter and wiring harness.
3. Attach igniter checker (SST #49 F018 002) to adapter harness.
4. Connect igniter checker power leads to the power connector terminal (Blue: 1-pin) and ground.
5. Connect a voltmeter between the igniter checker (brown wire) and a ground
6. Turn ignition switch "ON." Verify approximately 12V at the brown wire terminal. If voltage is incorrect, check related wiring.
7. While observing the voltmeter, push igniter checker switch SW2. Do not activate SW2 for more than one second.
8. Check that the voltmeter indicates approximately 8V.
9. If not as specified, replace the igniter.
10. Disconnect voltmeter from the brown wire and connect it to the gray wire.
11. Repeat steps 5 through 9.
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