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Test No. 30: Driver Door Power Window Does Not Operate

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check driver door control system. See DRIVER DOOR CONTROL SYSTEM  under TROUBLE SHOOTING. After repairs, perform confirmation test. See CONFIRMATION TEST . If driver door control system is okay, go to next step.
  2. Check driver door power window motor. See POWER WINDOW MOTOR under COMPONENT TESTS in POWER WINDOWS - AVALON article under WINDOWS in ACCESSORIES & EQUIPMENT. If power window motor is okay, go to next step. If power window motor is defective, replace power window motor. After repairs, perform confirmation test. See CONFIRMATION TEST .
  3. Turn ignition off. Disconnect driver door ECU 25-pin harness connector and driver door power window motor 6-pin harness connector. Check Red wire between driver door ECU 25-pin harness connector terminal No. 14 and driver door power window motor 6-pin harness connector terminal No. 1. Also check Green wire between driver door ECU 25-pin harness connector terminal No. 1 and driver door power window motor 6-pin harness connector terminal No. 2. See POWER WINDOWS in SYSTEM WIRING DIAGRAMS article. If wires, harnesses and connectors are okay, go to next step. If either wire, harness or connector is defective, repair or replace as required. After repairs, perform confirmation test. See CONFIRMATION TEST .
  4. Check body control ECU ground circuits. See BODY COMPUTER in SYSTEM WIRING DIAGRAMS article. If ground circuits are faulty, repair and retest system. If ground circuits are okay, substitute original body control ECU with a known-good unit and recheck system operation. If system operates properly, original body control ECU was defective. If system still does not operate properly, perform body control ECU pin voltage check. See BODY CONTROL ELECTRONIC CONTROL UNIT  under PIN VOLTAGE TESTS. Check wiring harness and electrical connectors for an intermittent problem. Repair wiring harnesses or connectors as necessary. If voltage values, harnesses and connectors are okay, replace body control ECU. After repairs, perform confirmation test. See CONFIRMATION TEST . If symptom is still present, go to next step.
  5. Check wiring harness and electrical connectors between battery and driver door ECU, between driver door ECU and driver door power window motor, and all power and ground connections. See POWER WINDOWS in SYSTEM WIRING DIAGRAMS article. If wiring harnesses or electrical connectors are defective, repair as necessary. After repairs, perform confirmation test. See CONFIRMATION TEST .
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