Power Window Control System (Diagnostics - Introduction): Diagnosis Toyota RAV4 IV

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the power window control system.
2. *: Use Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. INSPECT BATTERY VOLTAGE Standard voltage 11 to 14 V HINT: If the voltage is below 11 V, recharge or replace the battery before proceeding. NEXT: Go to next step
3. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* Using Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system. RESULT Result Proceed to No DTCs output A DTCs output B B --> GO TO DIAGNOSTIC TROUBLE CODE CHART A: Go to next step
4. PROBLEM SYMPTOMS TABLE RESULT Result Proceed to Fault not listed in problem symptoms table A Fault listed in problem symptoms table B B --> GO TO STEP 6 A: Go to next step
5. OVERALL ANALYSIS AND TROUBLESHOOTING* Operation Check.Refer to «OPERATION CHECK»(ref-493580-S14357416802012081000000) . Terminals of ECU.Refer to «TERMINALS OF ECU»(ref-493580-S39496480612012081000000) . DATA LIST / ACTIVE TEST.Refer to «DATA LIST / ACTIVE TEST»(ref-493580-S15702678852012081000000) . NEXT: Go to next step
6. ADJUST, REPAIR OR REPLACE NEXT: Go to next step
7. CONFIRMATION TEST NEXT: Go to next step
8. RESET POWER WINDOW MOTOR If the power window master switch AUTO light is blinking, reset the power window motor.Refer to «INITIALIZATION»(ref-493580-S34500763462012081000000) . NEXT --> END

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1. CHECK WINDOW LOCK SWITCH Check that the passenger side power window and rear windows cannot be operated when the window lock switch of the power window regulator master switch is pressed. OK Passenger side power window and rear windows operation is disabled. Check that the passenger side power window can be operated when the window lock switch is pressed again. OK Passenger side power window and rear windows can be operated.
2. CHECK MANUAL UP / DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled halfway up UP (Closes) Pushed halfway down DOWN (Opens) Check that the passenger side and rear power windows operate as follows: OK Condition Regulator Switch Switch Operation Power Window Ignition switch ON Window lock switch off Passenger side Pulled up UP (Closes) Pushed down DOWN (Opens) Rear LH side Pulled up UP (Closes) Pushed down DOWN (Opens) Rear RH side Pulled up UP (Closes) Pushed down DOWN (Opens)
3. CHECK AUTO UP / DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled up (One touch operation) AUTO UP (Closes) Pushed down (One touch operation) AUTO DOWN (Opens)
4. CHECK REMOTE MANUAL UP/DOWN FUNCTION Check that the passenger side and rear power windows operate as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch off Passenger side Pulled up UP (Closes) Pushed down DOWN (Opens) Rear LH side Pulled up UP (Closes) Pushed down DOWN (Opens) Rear RH side Pulled up UP (Closes) Pushed down DOWN (Opens)
5. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF (DRIVER DOOR POWER WINDOW) Check that the driver door power window can be operated with the power window regulator master switch after the ignition switch is turned off. Check that the key-off operation function does not operate after either the driver door or front passenger door is opened. Check that the driver door power window cannot be operated after more than approximately 45 seconds have elapsed since the ignition switch was turned off.
6. CHECK JAM PROTECTION FUNCTION (DRIVER DOOR POWER WINDOW) Check the basic function. WARNING: The jam protection function is operative during both the AUTO UP and MANUAL UP operation. Do not put your fingers between the door frame and door glass to check functions. Also, prevent any parts of your body from being caught during inspection. HINT: The jam protection function is operative during both the AUTO UP and MANUAL UP operation while the engine runs or the ignition switch is ON, and also after the key is removed from the key cylinder. Fully open the driver door power window. Set a thick book wrapped with a shop rag or piece of cloth near the power window fully closed position. Operate the AUTO UP or MANUAL UP function to check that the power window goes down before the book is caught between the window and door frame, and stops when the opening reaches approximately 200 mm(7.87 in.). HINT: The power window moves down approximately 50 mm(1.97in.). However, when the opening does not reach 200 mm(7.87 in.), the power window continues to go down until the opening reaches 200 mm(7.87 in.) or until approximately 5 seconds have elapsed. While the power window is moving down, check that the door glass cannot be moved up even when the power window regulator master switch is used.
7. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Check the LED illumination. Check that the LED located on the power window regulator master switch illuminates when the ignition switch is turned ON with the connector connected.

PROBLEM SYMPTOMS TABLE

POWER WINDOW CONTROL SYSTEM

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1. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (ON DRIVER DOOR) (POWER WINDOW ECU) Disconnect the H4 motor connector (on the driver side). Measure the resistance and voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (H4-1) - Body ground W-B - Body ground Ground Always Below 1 ohms B (H4-2) - GND (H4-1) GR - W-B Battery power supply Always 9 to 14 V UP (H4-10) - DOWN (H4-7) P - W Driver side door power window regulator motor UP DOWN Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the H4 motor connector. Measure the voltage of the connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition LED (H4-5) - GND (H4-1) SB - W-B Ignition power supply Ignition switch ON 9 to 14 V If the result is not as specified, the motor may have a malfunction.
2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Disconnect the H2 switch connector. Measure the resistance and voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition E (H2-1) - Body ground W-B - Body ground Ground Always Below 1 ohms B (H2-6) - Body ground L - Body ground Ignition power supply Ignition switch ON 9 to 14 V B (H2-6) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the H2 switch connector. Reset the power window regulator motor. Measure the voltage of the connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition U (H2-8) - E (H2-1) P - W-B Driver side door power window regulator motor UP output Ignition switch ON, driver power window regulator switch off 9 to 14 V U (H2-8) - E (H2-1) P - W-B Driver side door power window regulator motor UP output Ignition switch ON, driver side power window regulator switch UP (manual operation) 9 to 14 V -->Below 1 V U (H2-8) - E (H2-1) P - W-B Driver side door power window regulator motor UP output Ignition switch ON, driver side power window fully open --> driver side power window regulator switch UP (AUTO operation) --> driver side power window fully closed 9 to 14 V --> Below 1 V D (H2-5) - E (H2-1) W - W-B Driver side door power window regulator motor DOWN output Ignition switch ON, driver side power window regulator switch DOWN (manual operation) Below 1 V --> 9 to 14 V D (H2-5) - E (H2-1) W - W-B Driver side door power window regulator motor DOWN output Ignition switch ON, driver side power window fully closed --> driver side power window regulator switch DOWN (AUTO operation) --> driver side power window fully open Below 1 V --> 9 to 14 V --> Below 1 V
3. CHECK POWER WINDOW REGULATOR SWITCH (for Passenger Side) Disconnect the G3 switch connector. Measure the voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition B (G3-3) - Body ground L - Body ground Ignition power supply Ignition switch ON 9 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the G3 switch connector. Measure the voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition B (G3-3) - D (G3-1) L - B Passenger side door power window regulator motor UP output Ignition switch ON, front passenger window regulator switch off Below 1 V B (G3-3) - D (G3-1) L - B Passenger side door power window regulator motor UP output Ignition switch ON, front passenger window regulator switch UP 9 to 14 V B (G3-3) - U (G3-4) L - Y Passenger side door power window regulator motor DOWN output Ignition switch ON, front passenger window regulator switch off Below 1 V B (G3-3) - U (G3-4) L - Y Passenger side door power window regulator motor DOWN output Ignition switch ON, front passenger window regulator switch DOWN 9 to 14 V If the result is not as specified, there may be a malfunction.
4. CHECK POWER WINDOW REGULATOR SWITCH (for Rear Door Side) Disconnect the J1 or I1 switch connectors. Measure the voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition B (3) - Body ground L - Body ground Ignition power supply Ignition switch OFF Below 1 V B (3) - Body ground L - Body ground Ignition power supply Ignition switch ON 10 to 14 V U (4) - Body ground R - Body ground Power window motor UP output Ignition switch ON, power window switch off --> UP Below 1 V --> 10 to 14 V D (1) - Body ground G - Body ground Power window motor DOWN output Ignition switch ON, power window switch off --> DOWN Below 1 V --> 10 to 14 V SU (5) - Body ground G - Body ground Power window motor UP input (Remote) Ignition switch ON, power window master switch off --> UP (Remote) Below 1 V --> 10 to 14 V SD (2) - Body ground BR - Body ground Power window motor DOWN input (Remote) Ignition switch ON, power window master switch off --> UP (Remote) Below 1 V --> 10 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
5. CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) Disconnect the IA, IB, IC, IE and IM junction block connectors. Disconnect the E15 and E16 ECU connectors. Measure the voltage and resistance of the wire harness side connectors. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition BECU (IB-30) - GND1 (IE-17)*1 R - W-B Battery (power supply) Always 9 to 14 V AM1 (E16-1) - GND1 (IE-17)*2 W - W-B Battery (power supply) Always 9 to 14 V AM2 (E15-6) - GND1 (IE-17)*2 W - W-B Battery (power supply) Always 9 to 14 V IG (IM-9) - GND1 (IE-17) W - W-B Ignition power supply Ignition switch ON 9 to 14 V IG (IM-9) - GND1 (IE-17) W - W-B Ignition power supply Ignition switch OFF Below 1 V DCTY (IA-21) - Body ground W - Body ground Driver side door courtesy light switch input Driver side door closed 10 kohms or higher DCTY (IA-21) - Body ground W - Body ground Driver side door courtesy light switch input Driver side door open Below 1 ohms PCTY (IC-14) - Body ground BR - Body ground Front passenger side door courtesy light switch input Front passenger side door closed 10 kohms or higher PCTY (IC-14) - Body ground BR - Body ground Front passenger side door courtesy light switch input Front passenger side door open Below 1 ohms LIN2 (E15-23) - Body ground V - Body ground LIN communication Always 10 kohms or higher GND1 (IE-17) - Body ground W-B - Body ground Ground Always Below 1 ohms *1: w/o Smart Key System *2: w/ Smart Key System If the result is not as specified, there may be a malfunction on the wire harness side.

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1. DESCRIPTION The driver side power window regulator motor (power window ECU) controls the power window control system functions on the vehicle. Power window control system data can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. Symbols (Terminal No.) Terminal Description Condition Specified Condition SIL (7) - SG (5) Bus "+" line During transmission Pulse generation CG (4) - Body ground Chassis ground Always Below 1 ohms SG (5) - Body ground Signal ground Always Below 1 ohms BAT (16) - Body ground Battery positive Always 10 to 14 V CANH (6) - CANL (14) CAN bus line Ignition switch OFF * 54 to 69 ohms CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch OFF * 200 ohms or higher CANL (14) - CG (4) LOW-level CAN bus line Ignition switch OFF * 200 ohms or higher CANH (6) - BAT (16) HIGH-level CAN bus line Ignition switch OFF * 6 kohms or higher CANL (14) - BAT (16) LOW-level CAN bus line Ignition switch OFF * 6 kohms or higher NOTE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. Connect the cable of Techstream to the DLC3, turn the ignition switch to the ON position and attempt to use Techstream. If the screen displays a communication error message, a problem exists in the vehicle side of the tester side. HINT: If communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the original vehicle. If communication is still impossible when the tool is connected to another vehicle, the problem is probably in the tool itself. Consult the Service Department listed in the tool's instruction manual.

DTC CHECK / CLEAR

1. CHECK DTC Connect Techstream to the DLC3. Turn the ignition switch ON and turn the tester on. Check the DTC(s).
2. CLEAR DTC Connect Techstream to the DLC3. Turn the ignition switch ON and turn the tester on. Check that "DTCs are cleared" is displayed. NOTE: If any DTCs are output, troubleshoot those DTCs again.

DATA LIST / ACTIVE TEST

1. READ DATA LIST HINT: Using the Techstream's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time. Connect the Techstream to the DLC3. Turn the ignition switch ON. Read the Data List. D-DOOR MOTOR Tester Display Measurement Item/Range Normal Condition Diagnosis Note D Door P/W Auto SW Driver side power window auto UP / DOWN switch signal / ON or OFF ON: Driver side power window AUTO switch operates OFF: Driver side power window AUTO switch does not operate - D Door P/W Up SW Driver side power window manual UP switch signal / ON or OFF ON: Driver side power window UP switch operates OFF: Driver side power window UP switch does not operate - D Door P/W Down SW Driver side power window manual DOWN switch signal / ON or OFF ON: Driver side power window DOWN switch operates OFF: Driver side power window DOWN switch does not operate - MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnosis Note Communication D Door Motor Connection status between power window regulator motor assembly (driver door) and main body ECU / OK or STOP OK: Connection Stop: No connection - 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
2. PERFORM ACTIVE TEST WARNING: Be careful to avoid injuries as this test causes vehicle parts to move. HINT: Performing the Techstream's Active Test allows relay, VSV, actuator, and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time. The Data List can be displayed during the Active Test. Connect the Techstream to the DLC3. Turn the ignition switch ON. Performing the Active Test by following the prompts on the tester screen. D-DOOR MOTOR Tester Display Test Part Control Range Diagnosis Note P/W Up/Down Power window UP / OFF - P/W Up/Down Power window DOWN / OFF - MAIN BODY Tester Display Test Part Control Range Diagnosis Note IG OFF P/W Control Permission Output Power window ON / OFF

DIAGNOSTIC TROUBLE CODE CHART