toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 1297 > < Component Tests and General Diagnostics|Page 1295
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Engine Control Module: Pinout Values and Diagnostic Parameters

INSPECTION OF ELECTRONIC CONTROLLED UNIT (ECU)

1. INSPECT VOLTAGE OF ECU.

NOTE:  The EFI circuit can be checked by measuring the and voltage at the wiring connectors of the ECU. Check the voltage between each
terminal of the wiring connectors.
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Turn the ignition switch.

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Measure the voltage at each terminal.

Component Tests and General Diagnostics|Page 1297 > < Component Tests and General Diagnostics|Page 1295