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Home >> Toyota >> 2001 >> Avalon XLS >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Body Control Systems) >> Symptom Tests >> Power Door Lock Control System >> Power Door Locks Do Not Operate By Switch

Power Door Locks Do Not Operate By Switch

WARNING: This page is about a different car, the 2000 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

  1. Testing Driver's Door ECU

    Check all voltage inputs to driver's door ECU. See DRIVER'S DOOR ECU  under PIN VOLTAGE TESTS. If any voltage inputs are not as specified, repair affected circuit and retest system. See WIRING DIAGRAMS . If all voltage inputs are as specified, substitute known-good driver's door ECU and retest system. If system now works properly, replace driver's door ECU. If system still does not work, reinstall original driver's door ECU and go to next step.

  2. Testing Body Control ECU

    Check all voltage inputs to body control ECU. See BODY CONTROL ECU  under PIN VOLTAGE TESTS. If any voltage inputs are not as specified, repair affected circuit and retest system. See WIRING DIAGRAMS . If all voltage inputs are as specified, substitute known-good body control ECU and retest system. If system now works properly, replace body control ECU. If system still does not work, recheck all related system wiring and connections.
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