Windshield/windowglass: Diagnosis Lexus SC II рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

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

1. VEHICLE BROUGHT TO WORKSHOP
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally. Result RESULT REFERENCE CHART Result Proceed to MPX DTC is not output A MPX DTC is output B B: GO to «MULTIPLEX COMMUNICATION SYSTEM»(ref-283178-S21998405322008041900000) A: Go to Next Step
4. CHECK FOR DTC* Check for DTC and note any codes that are output. Delete the DTC. Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests. Result RESULT REFERENCE CHART Result Proceed to DTC does not reoccur A DTC reoccurs B B: Go to «DIAGNOSTIC TROUBLE CODE CHART»(ref-283166-S10289305492008041900000) A: Go to Next Step
5. PROBLEM SYMPTOMS TABLE Result RESULT REFERENCE CHART Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B: Go to Step 7 A: Go to Next Step
6. OVERALL ANALYSIS AND TROUBLESHOOTING* (see «DATA LIST / ACTIVE TEST»(ref-283166-S06553375382008041900000) ). (see «ON-VEHICLE INSPECTION»(ref-283166-S19422425692008041900000) ). (see «TERMINALS OF ECU»(ref-283166-S30861139392008041900000) ). Inspection. Inspect master switch (see «INSPECTION»(ref-283166-S12867313512008041900000) ). Inspect power window switch (see «INSPECTION»(ref-283166-S29165620772008041900000) ). Inspect power window motor (see «INSPECTION»(ref-283166-S12562546002008041900000) ).
7. ADJUST, REPAIR OR REPLACE
8. CONFIRMATION TEST NEXT: END

PROBLEM SYMPTOMS TABLE

HINT

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Power window control system

SYSTEM REFERENCE CHART

Scheme 70

Scheme 71

Scheme 72

Scheme 73

1. CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) (Scheme 70): Identifying D17 And D19 ECU Connector Terminals Disconnect the D17 and D19 ECU connectors. Measure the voltage and resistance of the wire harness side connectors. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (D19-1) - Body ground W-B - Body ground Ground Always Below 1 ohms CPUB (D19-4) - Body ground L-O - Body ground +B power supply Always 10 to 14 V SIG (D19-5) - Body ground V-W - Body ground Ignition power supply Ignition switch ON 10 to 14 V BDR (D19-6) - Body ground B-R - Body ground +B power supply Always 10 to 14 V CTY (D17-27) - Body ground R-W - Body ground Driver side courtesy switch input Driver side door closed 10 kohms or higher CTY (D17-27) - Body ground R-W - Body ground Driver side courtesy switch input Driver side door open Below 1 ohms PWE (D17-29) - Body ground Y - Body ground Power window master switch ground Always Below 1 ohms PWS (D17-21) - Body ground V-W - Body ground Power window master switch supply Ignition switch ON or key off operation 10 to 14 V MUP (D17-23) - Body ground P-L - Body ground Driver side power window MANUAL UP input Driver side power window switch OFF 10 kohms or higher MUP (D17-23) - Body ground P-L - Body ground Driver side power window MANUAL UP input Driver side power window switch UP Below 1 ohms MDN (D17-25) - Body ground V - Body ground Driver side power window MANUAL DOWN input Driver side power window switch OFF 10 kohms or higher MDN (D17-25) - Body ground V - Body ground Driver side power window MANUAL DOWN input Driver side power window switch DOWN Below 1 ohms AUTO (D17-2) - Body ground W-G - Body ground Driver side power window AUTO UP / DOWN input Driver side power window switch UP or DOWN 10 kohms or higher AUTO (D17-2) - Body ground W-G - Body ground Driver side power window AUTO UP / DOWN input Driver side power window switch AUTO UP or AUTO DOWN Below 1 ohms SGND (D19-11) - Body ground BR - Body ground Ground Always Below 1 ohms LMT (D19-10) - SGND (D19-11) B-W - BR Power window limit switch input Power window fully closed 10 kohms or higher LMT (D19-10) - SGND (D19-11) B-W - BR Power window limit switch input Power window fully opened Below 1 ohms PLS (D19-21) - SGND (D19-11) W - BR Power window pulse sensor input Power window operating Pulse generation WLS1 (D17-20) - Body ground Y-B - Body ground Power window lock switch output Ignition switch ON, window lock switch LOCK Below 1 ohms WLS1 (D17-20) - Body ground Y-B - Body ground Power window lock switch output Ignition switch ON, window lock switch UNLOCK 10 kohms or higher WLSW (D17-9) - Body ground R - Body ground Power window lock switch input Ignition switch ON, window lock switch LOCK Below 1 ohms WLSW (D17-9) - Body ground R - Body ground Power window lock switch input Ignition switch ON, window lock switch UNLOCK 10 kohms or higher DT1 (D17-5) - SC1 (D17-16) G-R - L-R Passenger door window remote UP input Passenger side power window using power window master switch OFF 10 kohms or higher DT1 (D17-5) - SC1 (D17-16) G-R - L-R Passenger door window remote UP input Passenger side power window using power window master switch DOWN Below 1 ohms DT1 (D17-5) - SC2 (D17-15) G-R - Y-R Passenger door window remote DOWN input Passenger side power window using power window master switch OFF 10 kohms or higher DT1 (D17-5) - SC2 (D17-15) G-R - Y-R Passenger door window remote DOWN input Passenger side power window using power window master switch UP Below 1 ohms DT1 (D17-5) - SC3 (D17-14) G-R - L Passenger door window remote AUTO UP / DOWN input Passenger side power window using power window master switch UP or DOWN 10 kohms or higher DT1 (D17-5) - SC3 (D17-14) G-R - L Passenger door window remote AUTO UP / DOWN input Passenger side power window using power window master switch AUTO UP or AUTO DOWN Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the D17 and D19 ECU connectors. Check the voltage of the connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition DN (D19-2) - Body ground G - Body ground Driver door power window motor UP input Ignition switch ON, driver side window switch OFF Below 1 V DN (D19-2) - Body ground G - Body ground Driver door power window motor UP input Ignition switch ON, driver side window switch DOWN 10 to 14 V UP (D19-3) - Body ground L - Body ground Driver door power window motor UP input Ignition switch ON, driver side window switch OFF Below 1 V UP (D19-3) - Body ground L - Body ground Driver door power window motor UP input Ignition switch ON, driver side window switch UP 10 to 14 V If the result is not as specified, the ECU may have a malfunction.
2. CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU) (Scheme 71): Identifying P9 And P11 ECU Connector Terminals Disconnect the P9 and P11 ECU connectors. Measure the voltage and resistance of the wire harness side connectors. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (P11-1) - Body ground W-B - Body ground Ground Always Below 1 ohms CPUB (P11-4) - Body ground L-O - Body ground +B power supply Always 10 to 14 V SIG (P11-5) - Body ground V-W - Body ground Ignition power supply Ignition switch ON 10 to 14 V BDR (P11-6) - Body ground G-Y - Body ground +B power supply Always 10 to 14 V CTY (P9-27) - Body ground R-W - Body ground Passenger side courtesy switch input Passenger side door closed 10 kohms or higher CTY (P9-27) - Body ground R-W - Body ground Passenger side courtesy switch input Passenger side door open Below 1 ohms PWE (P9-29) - Body ground Y - Body ground Power window regulator switch ground Always Below 1 ohms PLS (P9-21) - SGND (P11-11) W - BR Power window pulse sensor input Power window operating Pulse generation MUP (P9-23) - Body ground B-W - Body ground Passenger side power window MANUAL UP input Passenger side regulator switch OFF 10 kohms or higher MUP (P9-23) - Body ground B-W - Body ground Passenger side power window MANUAL UP input Passenger side regulator switch UP Below 1 ohms MDN (P9-25) - Body ground V - Body ground Passenger side power window MANUAL DOWN input Passenger side regulator switch OFF 10 kohms or higher MDN (P9-25) - Body ground V - Body ground Passenger side power window MANUAL DOWN input Passenger side regulator switch DOWN Below 1 ohms AUTO (P9-2) - Body ground W-G - Body ground Passenger side power window AUTO UP / DOWN input Passenger side regulator switch UP or DOWN 10 kohms or higher AUTO (P9-2) - Body ground W-G - Body ground Passenger side power window AUTO UP / DOWN input Passenger side regulator switch AUTO UP or AUTO DOWN Below 1 ohms SGND (P11-11) - Body ground BR - Body ground Ground Always Below 1 ohms LMT (P11-10) - SGND (P11-11) B-W - BR Power window limit switch input Power window fully closed 10 kohms or higher LMT (P11-10) - SGND (P11-11) B-W - BR Power window limit switch input Power window fully opened Below 1 ohms WLS1 (P9-20) - Body ground L-R - Body ground Power window lock switch output Ignition switch ON, window lock switch LOCK Below 1 ohms WLS1 (P9-20) - Body ground L-R - Body ground Power window lock switch output Ignition switch ON, window lock switch UNLOCK 10 kohms or higher WLSW (P9-9) - Body ground Y-B - Body ground Power window lock switch input Ignition switch ON, window lock switch LOCK Below 1 ohms WLSW (P9-9) - Body ground Y-B - Body ground Power window lock switch input Ignition switch ON, window lock switch UNLOCK 10 kohms or higher If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the P9 and P11 ECU connectors. Measure the voltage of the connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition DN (D19-2) - Body ground G - Body ground Passenger door power window motor DOWN input Ignition switch ON, passenger side regulator switch OFF Below 1 V DN (D19-2) - Body ground G - Body ground Passenger door power window motor DOWN input Ignition switch ON, passenger side regulator switch DOWN 10 to 14 V UP (D19-3) - Body ground L - Body ground Passenger door power window motor UP input Ignition switch ON, passenger side regulator switch OFF Below 1 V UP (D19-3) - Body ground L - Body ground Passenger door power window motor UP input Ignition switch ON, passenger side regulator switch UP 10 to 14 V If the result is not as specified, the ECU may have a malfunction.
3. CHECK THEFT WARNING ECU ASSEMBLY (Scheme 72): Identifying T7 Theft Warning ECU Assembly Connector Terminals Disconnect the T7 ECU connector. Measure the voltage and resistance of the wire harness side connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition IG (T7-24) - Body ground V-W - Body ground Ignition power supply Ignition switch ON 10 to 14 V +B (T7-1) - Body ground L-W - Body ground +B power supply Always 10 to 14 V +B2(T7-21)-Body ground B-O - Body ground +B2 power supply Always 10 to 14 V GND (T7-20) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side.
4. CHECK TRANSPONDER KEY ECU ASSEMBLY (Scheme 73): Identifying T13 Transponder Key ECU Assembly Connector Terminals Disconnect the T13 ECU connector. Measure the voltage and resistance of the wire harness side connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition AGND (T13-13) - Body ground V - Body ground Ground Always Below 1 ohms CPUB (T13-1) - GND (T13-14) L-B - W-B Battery Always 10 to 14 V IG2 (T13-2) - AGND (T13-13) B - V Ignition switch Ignition switch ON 10 to 14 V KSW (T13-3) - AGND (T13-13) LG-B - V Unlock warning switch No key in ignition key cylinder 10 kohms or higher KSW (T13-3) - AGND (T13-13) LG-B - V Unlock warning switch Key inserted Below 1 ohms Reconnect the T13 ECU connector. Measure the voltage of the connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition VC12 (T13-9) - AGND (T13-13) Y - V Power source Ignition switch ON 4.6 to 5.4 V If the result is not as specified, the ECU may have a malfunction.

Scheme 74

Scheme 75

1. DESCRIPTION The door ECUs control the power window control system functions on the vehicle. Power window control system data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.
2. CHECK DLC3 HINT: The vehicle uses ISO 9141-2 communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 9141-2 format. (Scheme 74): Identifying DLC3 Connector Terminal ECU CONNECTOR TERMINAL SPECIFIED CONDITION 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 If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. HINT: Connect the cable of the intelligent tester to the DLC3, turn the ignition switch ON and attempt to use the tester. If the screen displays the message UNABLE TO CONNECT TO VEHICLE, there is a problem either with the vehicle or with the tester. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle. If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual. (Scheme 75): Connecting Cable Of Intelligent Tester (With CAN VIM) To DLC3

Scheme 76

1. CHECK DTC Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Read the DTCs by following the directions on the tester screen. HINT: Refer to the intelligent tester operator's manual for further details.
2. CLEAR DTC Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Erase the DTCs by following the directions on the tester screen. HINT: Refer to the intelligent tester operator's manual for further details. (Scheme 76): Connecting Cable Of Intelligent Tester (With CAN VIM) To DLC3

DATA LIST / ACTIVE TEST

1. READ DATA LIST HINT: Using the intelligent tester'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 intelligent tester to the DLC3. Turn the ignition switch ON. Read the DATA LIST. Multiplex network door ECU front LH (Driver door ECU): (Switch condition) ITEM MEASUREMENT NORMAL CONDITION CHART Item Measurement Item / Display (Range) Normal Condition Diagnostic Note P/W AUTO SW Driver side power window AUTO operation ON / OFF ON: Driver door power window AUTO switch operates OFF: Driver door power window AUTO switch does not operate - P/W AUTO SW Passenger side power window AUTO operation ON / OFF ON: Passenger door remote power window AUTO switch operates OFF: Passenger door remote power window AUTO switch does not operate - LIMIT SW Jam protection limit switch ON / OFF ON: Jam protection limit switch operates OFF: Jam protection limit switch does not operate - Multiplex network door ECU front LH (Driver door ECU): (Glass position) ITEM MEASUREMENT NORMAL CONDITION CHART Item Measurement Item / Display (Range) Normal Condition Diagnostic Note GLASS POS - 1/4 Glass position (Fully closed - 1/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - 2/4 Glass position (1/4 open - 2/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - 3/4 Glass position (2/4 open - 3/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - OPEN Glass position (3/4 open - Fully open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - Multiplex network door ECU front RH (Passenger door ECU): (Switch condition) ITEM MEASUREMENT NORMAL CONDITION CHART Item Measurement Item / Display (Range) Normal Condition Diagnostic Note P/W AUTO SW Passenger side power window AUTO operation ON / OFF ON: Passenger door power window AUTO switch operates OFF: Passenger door power window AUTO switch does not operate - LIMIT SW Jam protection limit switch ON / OFF ON: Jam protection limit switch operates OFF: Jam protection limit switch does not operate - Multiplex network door ECU front RH (Passenger door ECU): (Glass position) ITEM MEASUREMENT NORMAL CONDITION CHART Item Measurement Item / Display (Range) Normal Condition Diagnostic Note GLASS POS - 1/4 Glass position (Fully closed - 1/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - 2/4 Glass position (1/4 open - 2/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - 3/4 Glass position (2/4 open - 3/4 open) OK / CAUTION OK: Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position - GLASS POS - OPEN Glass position (3/4 open - Fully open) OK / CAUTION OK; Power window is moving UP by manual operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position
2. PERFORM ACTIVE TEST CAUTION: This test causes vehicle parts to move. Please watch your hands. 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 to the DLC3. Turn the ignition switch ON. Performing the ACTIVE TEST by following the directions on the tester screen. Multiplex network door ECU front LH (Driver door ECU) DISPLAY CONDITION CHART Item Test Details Diagnostic Note P/W UP/DOWN Power Window UP/DOWN - Multiplex network door ECU front RH (Passenger door ECU) ITEM CONTENT REFERENCE CHART Item Test Details Diagnostic Note P/W UP/DOWN Power Window UP/DOWN

DIAGNOSTIC TROUBLE CODE CHART

HINT

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "see page" below.

DTC DETECTION CONDITION CHART

Scheme 77

Scheme 78

1. CHECK WINDOW LOCK SWITCH Check that the passenger side power window operation is disabled when the window lock switch of the power window master switch is pressed. Check that the passenger side power window can be operated when the window lock switch is pressed again. (Scheme 77): Identifying Window Lock Switch
2. CHECK MANUAL UP / DOWN FUNCTION Check that the driver side power window operates as follows: OK SWITCHES CONDITION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled halfway up UP (Closed) Ignition switch ON Driver side Pushed halfway down DOWN (Open) Check that the passenger side power window operates as follows: OK SWITCHES CONDITION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Ignition switch ON Window lock switch OFF Passenger side Pushed halfway down DOWN (Open)
3. CHECK AUTO UP / DOWN FUNCTION Check that the driver side power window operates as follows: OK SWITCHES CONDITION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Driver side Pulled fully up AUTO UP (Fully closed) Ignition switch ON Driver side Pushed fully down AUTO DOWN (Fully open) Check that the passenger side power window operates as follows: OK SWITCHES CONDITION CHART Condition Regulator Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled fully up AUTO UP (Fully closed) Ignition switch ON Window lock switch OFF Passenger side Pushed fully down AUTO DOWN (Fully open)
4. CHECK REMOTE MANUAL UP / DOWN FUNCTION Check that the passenger side power window operates as follows: OK SWITCHES CONDITION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled halfway up UP (Closed) Ignition switch ON Window lock switch OFF Passenger side Pushed halfway down DOWN (Open)
5. CHECK REMOTE AUTO UP / DOWN FUNCTION Check that the passenger side power window operates as follows: OK SWITCHES CONDITION CHART Condition Master Switch Switch Operation Power Window Ignition switch ON Window lock switch OFF Passenger side Pulled fully up AUTO UP (Fully closed) Ignition switch ON Window lock switch OFF Passenger side Pushed fully down AUTO DOWN (Fully open)
6. 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 just been reset, raise and lower the door glass several times using MANUAL UP / DOWN function before performing the check. (Scheme 78): Removing Jam Protection Function Check that the door glass goes down by approximately 50 mm (1.97 in.) immediately when something gets caught between the door frame and door glass during power window operation. However, when the opening between the roof panel 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 / Manual UP function after the ignition switch is turned OFF Manual UP function using the driver side door lock key cylinder
7. CHECK MANUAL UP / DOWN FUNCTION USING DRIVER SIDE DOOR LOCK KEY CYLINDER Check that all power windows operate as follows, when the key is inserted into the driver side door lock key cylinder. OK KEY CONDITION CHART Condition Key Operation Position/Operation No key in ignition key cylinder Turned left (LOCK) for more than 2.0 sec. Driver and passenger side power windows/ UP No key in ignition key cylinder Turned right (UNLOCK) for more than 2.0 sec. Driver and passenger side power windows/ DOWN
8. CHECK MANUAL DOWN FUNCTION USING TRANSMITTER Check that all power windows operate as follows when operating the transmitter. OK KEY CONDITION CHART Condition Key Operation Position/Operation No key in ignition key cylinder Any door unlocked UNLOCK switch pressed for more than 2.5 sec. Driver and passenger side power windows/ DOWN
9. 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 43 seconds after the ignition switch is turned OFF. The front doors are closed.

INSPECTION PROCEDURE

1. CHECK BASIC FUNCTION Check that the door control transmitter and driver's door lock can control all the doors to lock and unlock normally. Result RESULT REFERENCE CHART Result Proceed to Both of them work normally A Transmitter does not work normally B Driver's door lock does not work normally C B: GO TO «WIRELESS DOOR LOCK CONTROL SYSTEM»(ref-283190-S17683865352008041900000) C: GO TO «POWER DOOR LOCK CONTROL SYSTEM»(ref-283190-S13817579662008041900000) A: Go to Next Step
2. CHECK MANUAL UP / DOWN FUNCTION Check that the manual UP / DOWN function using the master switch and regulator switch can operate all the power windows. OK: Manual UP / DOWN function operates normally. NG: OTHER PROBLEM OK: Go to Next Step
3. CHECK REMOTE UP / DOWN FUNCTION Check that the remote UP / DOWN function using the master switch can operate the power windows. OK: Remote UP / DOWN function operates normally. NG: OTHER PROBLEM OK: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH

1. CHECK MANUAL UP / DOWN FUNCTION Check that the manual UP / DOWN function using the master switch and regulator switch can operate all the power windows. OK: Manual UP / DOWN function operates normally. NG: OTHER PROBLEM OK: Go to Next Step
2. CHECK FOR DTC Operate the ignition switch. Check if DTC B2780 is output. Result RESULT REFERENCE CHART Result Proceed to DTC B2780 is not output A DTC B2780 is output B B: GO TO «ENGINE IMMOBILISER SYSTEM»(ref-283185-S25729909052008041900000) A: Go to Next Step
3. CHECK OPERATION OF FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Check that the map light illuminates when the driver side door is opened. OK: Map light illuminates normally. NG: GO TO «LIGHTING SYSTEM»(ref-283186-S38714677242008041900000) OK: REPLACE MULTIPLEX NETWORK DOOR ECU FRONT LH

1. RESET POWER WINDOW REGULATOR MOTOR Reset the power window regulator motor (see «INITIALIZATION»(ref-283166-S15251437122008041900000) ). Check if the power window AUTO UP / DOWN function operates normally. OK: AUTO UP / DOWN function operates normally. OK: END NG: Go to Next Step
2. CHECK DOOR WINDOW REGULATOR Remove the door glass (see «ON-VEHICLE INSPECTION»(ref-283174-S19684623462008041900000) ). Operate the door window regulator using the switch. Check if the door window regulator operates smoothly. OK: Door window regulator operates smoothly. NG: REPLACE DOOR WINDOW REGULATOR OK: REPLACE DOOR GLASS RUN (ADJUST DOOR GLASS)

HINT

1. Use these procedures to troubleshoot the window defogger system.
2. *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP
2. INSPECT BATTERY VOLTAGE Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally. Result RESULT REFERENCE CHART Result Proceed to MPX DTC is not output A MPX DTC is output B B: GO to «MULTIPLEX COMMUNICATION SYSTEM»(ref-283178-S21998405322008041900000) A: Go to Next Step
4. PROBLEM SYMPTOMS TABLE Result RESULT REFERENCE CHART 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
5. OVERALL ANALYSIS AND TROUBLESHOOTING* (see «TERMINALS OF ECU»(ref-283166-S25345963132008041900000) ). (see «DATA LIST / ACTIVE TEST»(ref-283166-S16088840202008041900000) ). (see «ON-VEHICLE INSPECTION»(ref-283166-S34676507512008041900000) ).
6. ADJUST, REPAIR OR REPLACE
7. CONFIRMATION TEST NEXT: END

HINT

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Window defogger system

PROBLEM SYMPTOM CHART

Scheme 79

Scheme 80

1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (A/C CONTROL ASSEMBLY) (Scheme 79): Identifying ECU Connector Terminal Disconnect the A10 ECU connector. Measure the resistance and voltage of the wire harness side connector. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition IG (A10-1) - Body ground V-W - Body ground Ignition (power supply) Ignition switch ON 10 to 14 V +B (A10-8) - Body ground W-R - Body ground Battery (power supply) Always 10 to 14 V GND (A10-14) - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction on the wire harness side.
2. CHECK LUGGAGE ROOM JUNCTION BLOCK (LUGGAGE ROOM JUNCTION BLOCK ECU) (Scheme 80): Identifying Luggage Room Junction Block - ECU Disconnect the 6A, 6F and 6L junction block connectors. Disconnect the L24 ECU connector. Measure the resistance and voltage of the wire harness side connectors. ECU CONNECTOR TERMINAL SPECIFIED CONDITION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition MPX-IG (6F-13) - Body ground V-W - Body ground Ignition power supply Ignition switch ON 10 to 14 V MPX-B (6F-12) - Body ground L-B - Body ground +B power supply Always 10 to 14 V P-GND (6A-2) - Body ground W-B - Body ground Ground Always Below 1 ohms SG (L24-5) - Body ground W-B - Body ground Ground Always Below 1 ohms DEF (6L-1) - Body ground W-R - Body ground +B power supply Always 10 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.

Scheme 81

Scheme 82

1. DESCRIPTION The rear window defogger system data and the Diagnostic Trouble Code (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs. (Scheme 81): Identifying DLC3 Connector Terminal
2. CHECK DLC3 HINT: The vehicle uses the ISO 9141-2 communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 9141-2 format. ECU CONNECTOR TERMINAL SPECIFIED CONDITION 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 If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. HINT: Connect the cable of the intelligent tester to the DLC3, turn the ignition switch ON and attempt to use the tester. If the screen displays the message UNABLE TO CONNECT TO VEHICLE, there is a problem either with the vehicle or with the tester. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle. If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual. (Scheme 82): Identifying Data Link Connector DLC3

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. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Perform the ACTIVE TEST by following the directions on the tester screen. Luggage room junction block ECU ITEM CONTENT REFERENCE CHART Item Test Details Diagnostic Note DEFOGGER RLY-R Operate rear window defogger wire ON/OFF

ON-VEHICLE INSPECTION

1. CHECK REAR WINDOW DEFOGGER SYSTEM OPERATION When the ignition switch is 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.