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Home >> Lexus >> 1995 >> SC 300 Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Keyless Entry System >> Circuit Testing >> Ecu Power Circuit Test
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Ecu Power Circuit Test

Turn remote door lock main switch to ON position. Leave electrical connector attached to remote door lock ECU. Check voltage at the following terminal of remote door lock ECU (backprobe the terminal). If battery voltage is not present, check for faulty fuse, main switch or wiring.

Fig 1: Identifying Remote Door Lock ECU Terminals
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