toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Antitheft Relay > < Alarm Module, (Vehicle Antitheft)|Testing and Inspection|Page 9
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a. Disconnect the E4, E5, E7 and E8 ECM connectors, and measure the voltage or resistance between each terminal of the wire harness side

connectors.

Pinouts

Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.

Oscilloscope Waveforms

b. Inspect using an oscilloscope.

Antitheft Relay > < Alarm Module, (Vehicle Antitheft)|Testing and Inspection|Page 9