toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Relays and Modules - Restraint Systems > < Main Relay (Computer/Fuel System)|Locations|Page 111
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Ignition Control Module: Testing and Inspection

CHECK THAT SPARK OCCURS 
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Disconnect high-tension cords from spark plug.

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Remove the spark plug.

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Install the spark plug to each high-tension cord.

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Ground the spark plug.

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Check if spark occurs while engine is being cranked.

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

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If the spark does not occur, do the test above.

Relays and Modules - Restraint Systems > < Main Relay (Computer/Fuel System)|Locations|Page 111