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Power Window Control System (Diagnostic Codes & Symptom Tests): Diagnosis Toyota RAV4 IV

Windows 2 illustrations ~587 words

INSPECTION PROCEDURE

Note. When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

Note. When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn the courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

Note. When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn the courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

Scheme 44

Scheme 44: PROCEDURE

Scheme 45

Scheme 45
  1. READ VALUE USING TECHSTREAM (LIN COMMUNICATION) Use the Data List to check the function of the power window regulator master switch. Connect Techstream to the DLC3. Turn the ignition switch ON and turn the tester on. Read the indication displayed on the tester. MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note Communication D-Door Motor Connection status between power window regulator motor assembly (driver side) and main body ECU / OK or Stop OK: Connection Stop: No connection - OK OK is displayed on Techstream screen. NG --> GO TO ENGINE IMMOBILISER SYSTEM (B2785) OK: Go to next step
  2. CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF Check the power window operation function after the ignition switch is turned off. RESULT Status Proceed to When power window can still be operated even after opening driver door and passenger door within approximately 45 seconds of ignition switch being turned off A When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch turned off B B --> REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) A: Go to next step
  3. READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH) Use the Data List to check the driver side door courtesy switch signal. Connect Techstream to the DLC3. Turn the ignition switch ON and turn the tester on. Read the indication displayed on the tester. MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door Courtesy SW Driver side door courtesy switch signal / ON or OFF ON: Driver door open OFF: Driver door closed - P Door Courtesy SW Front passenger side door courtesy switch signal / ON or OFF ON: Front passenger door open OFF: Front passenger door closed - OK OK is displayed on Techstream screen. OK --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) NG: Go to next step
  4. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Measure the resistance of the switch. Standard resistance Tester Connection Switch Condition Specified Condition 1 - Switch body Pushed 10 kohms or higher 1 - Switch body Not pushed Below 1 ohms NG --> REPLACE DOOR COURTESY LIGHT SWITCH ASSEMBLY OK: Go to next step
  5. CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) Measure the voltage without removing the IA, IC junction block connector. Standard voltage for Driver side for Passenger side Tester Connection Driver Door Condition Specified Condition IA-21 (DCTY) - Body ground Fully closed 10 to 14 V IA-21 (DCTY) - Body ground Open Below 1 V Tester Connection Driver Door Condition Specified Condition IC-14 (PCTY) - Body ground Fully closed 10 to 14 V IC-14 (PCTY) - Body ground Open Below 1 V NG --> REPAIR OR REPLACE HARNESS AND CONNECTOR OK --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)