Windshield / Windowglass: Diagnosis Lexus RX II рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use this procedure to troubleshoot the power window control system.
2. The intelligent tester should be used in steps 3 and 5.

1. VEHICLE BROUGHT TO WORKSHOP
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) HINT: See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-282977-S38607022452008041400000) Use the intelligent tester to confirm normal function of the multiplex communication system. (ECU unconnected, communication line malfunctioning) Without code outputs, proceed to A. (ECU unconnected, communication line malfunctioning) With code outputs, proceed to B. B:GO TO «MULTIPLEX COMMUNICATION SYSTEM»(ref-282977-S11093581492008041400000) A: Go to next step
4. PROBLEM SYMPTOMS TABLE HINT: See «PROBLEM SYMPTOMS TABLE»(ref-283023-S17818491432008041400000)
5. OVERALL ANALYSIS AND TROUBLESHOOTING Data list/Active test HINT: See «DATA LIST / ACTIVE TEST»(ref-283023-S29697445292008041400000) Circuit inspection Terminal of ECU HINT: See «TERMINALS OF ECU»(ref-283023-S22444229802008041400000)
6. ADJUST, REPAIR OR REPLACE
7. RESET POWER WINDOW MOTOR HINT: See «INITIALIZATION»(ref-283023-S00223109412008041400000) NEXT: END

Scheme 67

Scheme 68

1. CHECK WINDOW LOCK SWITCH Check that the front passenger side power window and rear power window operation is disabled when the window lock switch of the power window master switch is pressed. standard: Front passenger side power window and rear power window operation is disabled. Check that the front passenger side power window and rear power windows can be operated when the window lock switch is pressed again. standard: Front passenger side power window and rear power windows can be operated.
2. CHECK MANUAL UP/DOWN FUNCTION Check that the driver side power window operates as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Check that the power windows except the driver side power window operates as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear LH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear RH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open)
3. CHECK AUTO UP/DOWN FUNCTION Check that the driver side power window operates as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Check that the power windows except the driver side power window operate as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear LH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear RH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open)
4. CHECK REMOTE MANUAL UP/DOWN FUNCTION Check that the power windows except the driver side power window operate as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear LH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear RH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open)
5. CHECK REMOTE AUTO UP/DOWN FUNCTION Check that the power windows except the driver side power window operate as follows: Standard POWER WINDOW SWITCH OPERATION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear LH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Rear RH Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open)
6. MANUAL UP/DOWN FUNCTION USING DRIVER SIDE DOOR LOCK KEY CYLINDER Check that all power windows and sliding roof (standard type only) operate as follows, when the key is inserted into the driver side door lock key cylinder: Standard KEY OPERATION CHART Condition Key Operation Position/Operation No key in ignition key cylinder Turned left (LOCK) for more than 1.5 sec. Driver and passenger side power windows/UP Turned left (LOCK) for more than 2.0 sec. Rear LH and RH power windows/UP Turned left (LOCK) for more than 2.5 sec. Sliding roof/CLOSE Turned right (UNLOCK) for more than 1.5 sec. Driver and passenger side power windows/DOWN Turned right (UNLOCK) for more than 2.0 sec. Rear LH and RH power windows/DOWN Turned right (UNLOCK) for more than 2.5 sec. Sliding roof/OPEN
7. CHECK MANUAL DOWN FUNCTION USING TRANSMITTER Check that all power windows and sliding roof (standard type only) operate as follows when operating the transmitter: Standard TRANSMITTER OPERATION CHART Condition Transmitter Operation Position/Operation No key in ignition key cylinder Any door unlocked UNLOCK switch pressed for more than 1.5 sec. Driver and passenger side power windows/DOWN UNLOCK switch pressed for more than 2.0 sec. Rear LH and RH power windows/DOWN UNLOCK switch pressed for more than 2.5 sec. Sliding roof/OPEN HINT: For a sign for starting operation, the wireless door lock buzzer sounds once (answer-back).
8. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF When both of the following conditions are fulfilled, check that the power windows can be operated even after the ignition switch is turned off. Within 45 seconds after the ignition switch is turned off. The front doors are closed.
9. CHECK JAM PROTECTION FUNCTION HINT: The jam protection function prevents any part of your body from getting caught by accident between the door frame and the door glass during power window operation. NOTE: If the power window motor has been reset, raise and lower the door glass several times using MANUAL function before performing the check. Check that the door glass goes down by approx. 50 mm (1.97 in.) right when something gets caught between the door frame and door glass during power window operation. However, when the opening between the door frame and the door glass is less than 200 mm (7.87 in.), the door glass continues to go down and does not stop until an opening of 200 mm (7.87 in.) is achieved. Operative conditions: AUTO UP AUTO UP function after the ignition switch is turned off MANUAL UP function after the ignition switch is turned off MANUAL UP function using the driver side door lock key cylinder

PROBLEM SYMPTOMS TABLE

POWER WINDOW CONTROL SYSTEM

PROBLEM SYMPTOMS REFERENCE

Scheme 69

Scheme 70

Scheme 71

Scheme 72

Scheme 73

1. MULTIPLEX NETWORK MASTER SWITCH Disconnect the P22 switch connector. Measure the voltage and resistance of each terminal according to the value (s) in the table below. Standard resistance ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (P22-2) - Body ground W-B - Body ground Ground Constant Below 1 ohms Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition BDR (P22-10) - GND (P22-2) G - W-B +B power supply Constant 10 to 14 V CPUB (P22-9) - GND (P22-2) L-B - W-B +B power supply Constant 10 to 14 V SIG (P22-20) - GND (P22-2) BR-W-B Ignition power supply Ignition switch OFF --> ON 0 V --> 10 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the P22 switch connector and reset the power window motor. Measure the voltage according to the value (s) in the table below. Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition UP (P22-1) - GND (P22-2) GR - W-B Power window motor UP output Ignition switch ON, Driver side power window switch OFF --> UP (Manual operation) 0V --> 10 to 14 V UP (P22-1) - GND (P22-2) GR - W-B Power window motor UP output Ignition switch ON, Driver side power window fully open --> Driver side power window switch UP (AUTO operation) --> Driver side power window fully closed 0V --> 10 to 14 V-->0 V DN (P22-11) - GND (P22-2) B - W-B Power window motor DOWN output Ignition switch ON, Driver side power window switch OFF --> DOWN (Manual operation) 10 to 14 V-->0 V DN (P22-11) - GND (P22-2) B - W-B Power window motor DOWN output Ignition switch ON, Driver side power window fully closed --> Driver side power window switch DOWN (AUTO operation) --> Driver side power window fully open 10 to 14 V-->0 V PWS (P22-6) - GND (P22-2) O - W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK --> LOCK 10 to 14 V-->0 V VCC (P22-19) - GND (P22-2) LG - W-B Power window motor power source Constant 10 to 14 V
2. CHECK MULTIPLEX NETWORK SWITCH (FRONT PASSENGER SIDE) Disconnect the P19 switch connector. Measure the voltage and resistance according to the value (s) in the table below. Standard resistance ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (P19-7) - Body ground W-B - Body ground Ground Constant Below 1 ohms Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition BDR (P19-12) - GND (P19-7) G-W-B +B power supply Constant 10 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the P19 switch connector and reset power window motor. Measure the voltage according to the value (s) in the table below. Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition UP (P19-6) - GND (P19-7) GR-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF --> UP (Manual operation) 0 V --> 10 to 14 V UP (P19-6) - GND (P19-7) GR - W-B Power window motor UP output Ignition switch ON, Front passenger side power window fully open --> Regulator switch UP (AUTO operation) --> Front passenger side power window fully closed 0 V --> 10 to 14 V --> 0 V DN (P19-1) - GND (P19-7) B - W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF --> DOWN (Manual operation) 10 to 14 V-->0 V DN (P19-1) - GND (P19-7) B - W-B Power window motor DOWN output Ignition switch ON, Front passenger side power window fully closed --> Regulator switch DOWN (AUTO operation) --> Front passenger side power window fully open 10 to 14 V-->0 V PCT (P19-11) - GND (P19-7) O - W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK --> LOCK 10 to 14 V-->0 V VCC (P19-5) - SGND (P19-8) LG - R Power window motor power source Constant 10 to 14 V If the result is not as specified, the multiplex network switch may have a malfunction.
3. CHECK MULTIPLEX NETWORK SWITCH (REAR LH) Disconnect the P20 switch connector. Measure the voltage and resistance according to the value (s) in the table below. Standard resistance ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (P20-7) - Body ground W-B - Body ground Ground Constant Below 1 ohms SEL2 (P20-10) - GND (P20-7) W-B - W-B Terminal for identification of rear LH switch Constant Below 1 ohms Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition BDR (P20-12) - GND (P20-7) LG - W-B +B power supply Constant 10 to 14 V Reconnect the P20 switch connector and reset the power window motor. Measure the voltage according to the value (s) in the table below. Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition UP (P20-6) - GND (P20-7) V-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF --> UP (Manual operation) 0 V --> 10 to 14 V UP (P20-6) - GND (P20-7) V-W-B Power window motor UP output Ignition switch ON, Rear LH power window fully open --> Regulator switch UP (AUTO operation) --> Rear LH power window fully closed 0 V --> 10 to 14 V --> 0 V DN (P20-1) - GND (P20-7) W-W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF --> DOWN (Manual operation) 10 to 14 V-->0 V DN (P20-1) - GND (P20-7) W-W-B Power window motor DOWN output Ignition switch ON, Rear LH power window fully closed --> Regulator switch DOWN (AUTO operation) --> Rear LH power window fully open 10 to 14 V-->0 V PCT1 (P20-11) - GND (P20-7) GR-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK --> LOCK 10 to 14 V-->0 V VCC (P20-5) - SGND (P20-8) L-BR Power window motor power source Constant 10 to 14 V If the result is not as specified, the multiplex network switch may have a malfunction.
4. CHECK MULTIPLEX NETWORK SWITCH (REAR RH) Disconnect the P21 switch connector. Measure the voltage and resistance according to the value (s) in the table below. Standard resistance ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (P21-7) - Body ground W-B - Body ground Ground Constant Below 1 ohms SEL1 (P21-9) - GND (P21-7) W-B-W-B Terminal for identification of rear RH switch Constant Below 1 ohms Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition BDR (P21-12) - GND (P21-7) LG-W-B +B power supply Constant 10 to 14 V Reconnect the P21 switch connector and reset the power window motor. Measure the voltage according to the value (s) in the table below. Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition UP (P21-6) - GND (P21-7) V-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF --> UP (Manual operation) 0 V --> 10 to 14 V UP (P21-6) - GND (P21-7) V-W-B Power window motor UP output Ignition switch ON, Rear RH power window fully open --> Regulator switch UP (AUTO operation) --> Rear RH power window fully closed 0 V --> 10 to 14 V --> 0 V DN (P21-1) - GND (P21-7) W-W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF --> DOWN (Manual operation) 10 to 14V --> 0 V DN (P21-1) - GND (P21-7) W-W-B Power window motor DOWN output Ignition switch ON, Rear RH power window fully closed --> Regulator switch DOWN (AUTO operation) --> Rear RH power window fully open 10 to 14 V --> 0 V PCT1 (P21-11) - GND (P21-7) GR-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK --> LOCK 10 to 14 V-->0 V VCC (P21-5) - SGND (P21-8) L-BR Power window motor power source Constant 10 to 14 V If the result is not as specified, the multiplex network switch may have a malfunction.
5. CHECK INSTRUMENT PANEL J/B (BODY ECU) Disconnect the B4, B5 and B6 ECU connectors. Disconnect the 1F and 1M J/B connectors. Measure the resistance according to the value (s) in the table below. Standard resistance ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition KSW (B4-21) - Body ground B - Body ground Key unlock warning switch input No key in ignition key cylinder --> Key inserted 10 Kohms or higher --> Below 1 ohms PCTY (85-23) - Body ground L-W-B Front passenger side courtesy switch input Passenger side door CLOSED --> OPEN 10 Kohms or higher --> Below 1 ohms DCTY (B6-14) - Body ground L - Body ground Driver side courtesy switch input Driver side door CLOSED --> OPEN 10 Kohms or higher --> Below 1 ohms GND1 (1F-10) - Body ground W-B - Body ground Ground Constant Below 1 ohms GND2 (1M-9) - Body ground W-B - Body ground Ground Constant Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the B4, B5 and B6 ECU connectors. Reconnect the 1M and 1F J/B connectors. Measure the voltage according to the value (s) in the table below. Standard voltage ECU TERMINALS REFERENCE Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition KSW (B4-21) - Body ground B - Body ground Key unlock warning switch input No key in ignition key cylinder --> Key inserted 10 to 14 V-->0 V If the result is not as specified, the instrument panel J/B (body ECU) may have a malfunction.

Scheme 74

Scheme 75

Scheme 76

Scheme 77

1. CHECK DLC3 The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-3 and matches the ISO 15765-4 format. DLC3 TERMINALS REFERENCE 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 11 to 14 V CANH (6) - CANL (14) CAN bus line Ignition switch OFF (1) 54 to 69 ohms CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch OFF (1) 200 ohms or higher CANL (14) - CG (4) LOW-level CAN bus line Ignition switch OFF (1) 200 ohms or higher CANH (6) - BAT (16) HIGH-level CAN bus line Ignition switch OFF (1) 6 kohms or higher CANL (14) - BAT (16) LOW-level CAN bus line Ignition switch OFF (1) 6 kohms or higher NOTE: (1) 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 the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the intelligent tester. If the screen displays a communication error message, a problem exists in the vehicle side or 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.
2. INSPECT BATTERY VOLTAGE Check the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11V, replace the battery before proceeding.
3. CHECK DIAGNOSIS Turn the ignition switch ON. Operate the driver side switch of the master switch. Check the blinking pattern of the AUTO light as shown in the illustration. If pattern (A) is displayed, reset power window regulator motor. If pattern (B) or (C) is displayed, check the wire harness. If the normal pattern is displayed, replace the multiplex network master switch.

DATA LIST / ACTIVE TEST

1. USING INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Monitor the ECU data by following the prompts on the tester screen. HINT: The intelligent tester has a "Snapshot" function which records the monitored data. Refer to the intelligent tester operator's manual for further details.
2. DATA LIST HINT: Using the DATA LIST displayed on the intelligent tester, you can read the value of the switch, sensor, actuator, etc. without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten the labor time. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Read the DATA LIST according to the display on the tester. MASTER SW: DATA LIST CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note P/WAUTOSW Driver door power window auto switch signal/ON or OFF ON: Driver door power window auto switch operates OFF: Driver door power window auto switch does not operate - PP/WAUTOSW Front passenger door remote power window auto switch signal/ ON or OFF ON: Front passenger door remote power window auto switch operates OFF: Front passenger door remote power window auto switch does not operate - RR P/W AUTO SW Rear RH door remote power window auto switch signal/ON or OFF ON: Rear RH door remote power window auto switch operates OFF: Rear RH door remote power window auto switch does not operate - RL P/WAUTOSW Rear LH door remote power window auto switch signal/ON or OFF ON: Rear LH door remote power window auto switch operates OFF: Rear LH door remote power window auto switch does not operate - P/W UP SW Driver door power window manual up switch signal/ON or OFF ON: Driver door power window manual up switch operates OFF: Driver door power window manual up switch does not operate - P P/W UP SW Front passenger door remote power window manual up switch signal/ON or OFF ON: Front passenger door remote power window manual up switch operates OFF: Front passenger door remote power window manual up switch does not operate - RR P/W UP SW Rear RH door remote power window manual up switch signal/ ON or OFF ON: Rear RH door remote power window manual up switch operates OFF: Rear RH door remote power window manual up switch does not operate - RL P/W UP SW Rear LH door remote power window manual up switch signal/ ON or OFF ON: Rear LH door remote power window manual up switch operates OFF: Rear LH door remote power window manual up switch does not operate - P/W DOWN SW Driver door power window manual down switch signal/ON or OFF ON: Driver door power window manual down switch operates OFF: Driver door power window manual down switch does not operate - P P/W DOWN SW Front passenger door remote power window manual down switch signal/ON or OFF ON: Front passenger door remote power window manual down switch operates OFF: Front passenger door remote power window manual down switch does not operate - RR P/W DOWN SW Rear RH door remote power window manual down switch signal/ON or OFF ON: Rear RH door remote power window manual down switch operates OFF: Rear RH door remote power window manual down switch does not operate - RL P/W DOWN SW Rear LH door remote power window manual down switch signal/ON or OFF ON: Rear LH door remote power window manual down switch operates OFF: Rear LH door remote power window manual down switch does not operate - P/W LOCK SW Power window lock switch signal/ ON or OFF ON: Power window lock switch in LOCK position OFF: Power window lock switch in UNLOCK position - GLASS POS-1/4 Door glass position (Fully closed -1/4 open) signal/OK or CAUTION OK: Power window is going UP by manual operation CAUTION: CAUTION may be displayed even when no resistance is applied in each position. In this case, there must be a foreign object stuck in that position - GLASS POS-2/4 Door glass position (1/4 open -21 4 open) signal/OK or CAUTION OK: Power window is going UP by manual operation CAUTION: CAUTION may be displayed even when no resistance is applied in each position. In this case, there must be a foreign object stuck in that position - GLASS POS-3/4 Door glass position (2/4 open - 3/ 4 open) signal/OK or CAUTION OK: Power window is going UP by manual operation CAUTION: CAUTION may be displayed even when no resistance is applied in each position. In this case, there must be a foreign object stuck in that position - GLASS POS-OPEN Door glass position (3/4 open -Fully open) signal/OK or CAUTION OK: Power window is going UP by manual operation CAUTION: CAUTION may be displayed even when no resistance is applied in each position. In this case, there must be a foreign object stuck in that position - DOOR KEY PW UP Door key-linked power window UP signal/AVAIL or NOT AVL AVAIL: Door key-linked power window UP is available NOT AVL: Door key-linked power window UP is unavailable - DOOR KEY PW DOWN Door key-linked power window DOWN signal/AVAIL or NOT AVL AVAIL: Door key-linked power window DOWN is available NOT AVL: Door key-linked power window DOWN is unavailable - UP/WIRELESS Power window UP w/ transmitter signal/AVAIL or NOT AVL AVAIL: Power window UP w/ transmitter is available NOT AVL: Power window UP w/ transmitter is unavailable - BODY: DATA LIST CHART Tester Display Measurement Item/Range Normal Condition Diagnostic Note IGSW Ignition switch signal/ ON or OFF ON: Key is in ON or START position OFF: Key is in OFF or ACC position - D DOR CTY SW Driver side door courtesy switch signal/ or OFF ON: Driver side door is open OFF: Driver side door is closed - P DOR CYT SW Front passenger side door courtesy switch signal/ ON or OFF ON: Front passenger side door is open OFF: Front passenger side door is closed
3. ACTIVE TEST HINT: Performing the ACTIVE TEST using the intelligent tester allows you to operate the relay, VSV, actuator, etc. without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one way to shorten the labor time. It is possible to display the DATA LIST during the ACTIVE TEST. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Perform the ACTIVE TEST according to the display on the tester. MASTER SW ACTIVE TEST CHART Tester Display Test Part Control Range Diagnostic Note P/W UP/DOWN Operates power window UP/DOWN

HINT

1. Use the procedure to troubleshoot the defogger system.
2. The intelligent tester should be used in steps 4 and 6.

1. VEHICLE BROUGHT TO WORKSHOP
2. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11V, recharge or replace the battery before proceeding.
3. PROBLEM SYMPTOMS TABLE Result PROBLEM SYMPTOMS REFERENCE Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B: GO TO step 6 A: Go to next step
4. OVERALL ANALYSIS AND TROUBLESHOOTING «TERMINALS OF ECU»(ref-283023-S33300484502008041400000) (See ) «DATA LIST / ACTIVE TEST»(ref-283023-S21487927602008041400000) (See ) On-vehicle inspection (See «ON-VEHICLE INSPECTION»(ref-283023-S34464689402008041400000) ) Inspection (See «WINDOW DEFOGGER WIRE»(ref-283023-S37525755242008041400000) )
5. REPAIR OR REPLACE
6. CONFIRMATION TEST NEXT: END

WINDOW DEFOGGER SYSTEM

PROBLEM SYMPTOMS REFERENCE

Scheme 78

1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY Measure the voltage and resistance of each terminal of the connectors. ECU TERMINALS REFERENCE Symbols (Terminal No) Wire Color Terminal Description Condition Specified Condition A8-8 (FDEF) - A8-6 (GND) B-W-B Front Deicer Signal Engine switch on (IG) Front deicer switch ON Below 1 V A8-8 (FDEF) - A8-6 (GND) B-W-B Front Deicer Signal Engine switch on (IG) Front deicer switch OFF 10 to 14 V A8-19 (DFG) - A8-6 (GND) G-W-B Rear Defogger Signal Engine switch on (IG) Rear defogger switch OFF 10 to 14 V A8-19 (DFG) - A8-6 (GND) G-W-B Rear Defogger Signal Engine switch on (IG) Rear defogger switch ON Below 1 V

DIAGNOSIS SYSTEM

1. CHECK DLC3 The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-3 and matches the ISO 15765-4 format. DLC3 TERMINALS REFERENCE 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 11 to 14 V CANH (6) - CANL (14) CAN bus line Ignition switch OFF (1) 54 to 69 ohms CANH (6) - CG (4) HIGH-level CAN bus line Ignition switch OFF (1) 200 ohms or higher CANL (14) - CG (4) LOW-level CAN bus line Ignition switch OFF (1) 200 ohms or higher CANH (6) - BAT (16) HIGH-level CAN bus line Ignition switch OFF (1) 6 kohms or higher CANL (14) - BAT (16) LOW-level CAN bus line Ignition switch OFF (1) 6 kohms or higher NOTE: (1) 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 the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the intelligent tester. If the screen displays a communication error message, a problem exists in the vehicle side or 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.
2. CHECK BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.

1. PERFORM ACTIVE TEST HINT: Performing the intelligent tester'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 intelligent tester (with CAN VIM) to the DLC3. Turn the ignition switch on. Perform the ACTIVE TEST according to the display on the tester. AIR CONDITIONER: ACTIVE TEST CHART Item Test Details Diagnostic Note DEFOGGER RLY-R Operate rear window defogger OFF/ON

ON-VEHICLE INSPECTION

1. CHECK REAR WINDOW DEFOGGER SYSTEM OPERATION When the ignition switch on and the defogger switch is pressed, check that the rear window defogger operates. HINT: After 15 minutes, check that the defogger automatically turns OFF.