toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 3574 > < Component Tests and General Diagnostics|Page 3572
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If OK check for open in harness and connector between ECM and battery.

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If not OK check for short in all the harness and components connected to "AM2" fuse.

3. CHECK FOR OPEN IN HARNESS AND CONNECTOR BETWEEN TERMINALS E01, E02 OF ECM CONNECTOR AND BODY

GROUND.
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If OK proceed to step 4.

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If not OK repair or replace harness or connector.

4. CHECK INJECTORS.

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Disconnect injector connector.

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Measure resistance of injector.

Resistance: Approximately 13.8 ohms at 20°C (68°F) 

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Check injection volume of injector.

Injection volume: 49 - 59 cm3 (3.0 - 3.6 Cu in)/15 sec.
Difference between each injector: Less than 5 Cm3 (0.3 cu in)
Leakage: One drop or less per minute.
 

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If OK check and replace ECM

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If not OK replace injector.

INSPECTION USING OSCILLOSCOPE

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