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Toyota Workshop Service and Repair Manuals

Relays and Modules - Restraint Systems > < EFI Main Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection
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Igniter: Testing and Inspection

ON-VEHICLE INSPECTION

NOTE:  "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and
"Hot" is from 50 °C (122 °F) to 100 °C (212 °F).

INSPECT IGNITION COIL WITH IGNITOR AND SPARK TEST

Check that the spark occurs.

1. Remove the ignition coils.
2. Remove the spark plugs.
3. Install the spark plugs to each ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.

NOTE:  To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at time.

If the spark does not occur, do the test as per the flow chart.

Relays and Modules - Restraint Systems > < EFI Main Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection