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Home >> Lexus >> 1995 >> LS 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Relays and Modules - Ignition System >> Ignition Control Module >> Testing and Inspection
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Ignition Control Module: Testing and Inspection

SPARK TEST
- Remove the No.3 timing belt cover.



- Disconnect the high-tension cords (from the ignition coils) from the distributor caps.

NOTICE: Pulling on or bending the cords may damage the conductor inside.




- Hold the end about 12.5 mm (0.50 in.) from the body ground.
- Check if spark occurs while engine is being cranked.

NOTICE: To prevent excess fuel being injected from the injectors during this test, do not crank the engine for more than 5 - 10 seconds at a time.

^ If spark occurs, reconnect the high-tension cords to the distributor caps.




NOTICE: Install the high-tension cord by pressing on the correct piece as shown in the illustration. If not done this way the high-tension cord will interfere with the camshaft timing pulley.

- Reinstall the No.3 timing belt covers.

^ If a spark does not occur, perform the following test.