toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 3554 > < Component Tests and General Diagnostics|Page 3552
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Checking Injector Operation

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If you have no sound scope, you can feel the injector operation with your finger. 

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If no sound or unusual sound is heard, check the wiring connector, injector or injection signal from the ECM.

RESISTANCE INSPECTION

1. Disconnect the injector connector.
2. Inspect the resistance of Injector.

Checking Injector resistance

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Using an ohmmeter, measure the resistance between the terminals.

Resistance: Approximately 13.8 ohms 

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If the resistance is not as specified. replace the injector.

3. Reconnect the injector connector.

NOTE: For information on testing the fuel injector circuit refer to "Injector Circuit" under "Diagnostic Charts" /" Non-Trouble Code Charts".
See: Computers and Control Systems/Testing and Inspection

Description and Diagnosis Procedure

SYSTEM: Injector Circuit

CIRCUIT DESCRIPTION 

Component Tests and General Diagnostics|Page 3554 > < Component Tests and General Diagnostics|Page 3552