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Home >> Toyota >> 1993 >> Tercel Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Anti-Theft System >> Testing Anti-Theft Circuits >> Test 1 >> Circuit Power Source
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Circuit Power Source

Turn ignition off and disconnect ATS ECU connector. Ensure battery voltage between ground and harness side connector terminal No. A20 (with power locks). If battery voltage is present, go to next step. If battery voltage is not present, repair open in harness or connectors as necessary.