Windshield/windowglass: Overview Toyota Avalon XX30

SYSTEM DESCRIPTION

1. POWER WINDOW CONTROL SYSTEM DESCRIPTION The power window control system controls the power windows' UP/DOWN function using regulator motors. The main controls of this system are: the multiplex network master switch assembly, which is built into the driver side door, and the power window regulator switches, which are built into the passenger side door and rear doors. Pressing each regulator switch on the multiplex network master switch assembly transmits a remote UP/DOWN signal to each power window regulator switch.
2. FUNCTION OF MAIN COMPONENT FUNCTION OF MAIN COMPONENT Component Outline Multiplex Network Master Switch Assembly Control window operations for all windows. Also, when window lock switch is set to lock position, window operation will only be possible for driver side power window. Multiplex Network Switch Assembly Located on passenger side door. Regulator switch assembly controls window operations for its respective window. Power Window Regulator Switch (Rear LH, RH) Located on rear door. Regulator switch assembly controls window operations for its respective window. Power Window Regulator Motor Assembly Receives switch signals and changes signals into motor activation. As a result, window position changes. Also, regulator motor assembly uses pulse sensor(s) to detect window position.
3. SYSTEM FUNCTION The power window control system has the following functions: POWER WINDOW CONTROL SYSTEM FUNCTION Function Outline Manual UP/DOWN function Function that raises window while power window switch is pulled halfway up and lowers window while switch is pushed halfway down. Window stops as soon as the switch is released. Auto UP/DOWN function Function that enables window to be fully opened or fully closed by one full push or pull of power window switch. Jam protection function Function that automatically stops power window and moves it downward if object is jammed in all power windows during AUTO UP operation. During key-off operation function, jam protection function works for manual UP and AUTO UP operation. Jam protection is available for front doors. Remote control function Function that allows multiplex network master switch assembly to control manual and AUTO UP/DOWN operations of passenger door power window and rear door power window. Key-off operation function Function that makes it possible to operate power window for approximately 43 seconds after ignition switch is turned to ACC or LOCK position and both front doors are closed. Window lock function Function where passenger door power window and rear door power windows' operations are disabled when window lock switch of the multiplex network master switch assembly is pressed. Passenger door power window and rear door power window can be operated when window lock switch is pressed again. Diagnosis Function where power window switch can detect malfunctions in power window system and make diagnoses. Power window switch light starts blinking to inform driver. Fail-safe Function that disables power window AUTO UP/DOWN function if pulse sensor (Hall IC) or limit sensor in power window regulator motor malfunction. Manual operation is possible through power window switches.

DESCRIPTION

This circuit supplies power to operate the multiplex network master switch.

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1. CHECK WIRE HARNESS (MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND) Disconnect the I6 connector. Measure the resistance and voltage according to the value(s) in «MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND (RESISTANCE)»(ref-245161-S15016966182006102400000) and «MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND (VOLTAGE)»(ref-245161-S22929343492006102400000) . Resistance MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND (RESISTANCE) Tester Connection Condition Specified Condition I6-1 (E) - Body ground Always Below 1 ohm Voltage MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND (VOLTAGE) Tester Connection Condition Specified Condition I6-7 (BW) - Body ground Always 10 to 14 V I6-6 (B) - Body ground Always 10 to 14 V I6-11 (IG) - Body ground Ignition switch OFF -> ON 0 V -> 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit supplies power to operate the multiplex network switch.

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1. CHECK WIRE HARNESS (MULTIPLEX NETWORK SWITCH - BATTERY AND BODY GROUND) Disconnect the H6 connector. Measure the resistance and voltage according to the value(s) in «MULTIPLEX NETWORK SWITCH - BATTERY AND BODY GROUND (RESISTANCE)»(ref-245161-S35016381002006102400000) . Resistance MULTIPLEX NETWORK SWITCH - BATTERY AND BODY GROUND (RESISTANCE) Tester Connection Condition Specified Condition H6-7(E) - Body ground Always Below 1 ohm Voltage MULTIPLEX NETWORK SWITCH - BATTERY AND BODY GROUND (VOLTAGE) Tester Connection Condition Specified Condition H6-12(BW) - Body ground Always 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signals from the multiplex network master switch assembly to multiplex network switch assembly.

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1. INSPECT MULTIPLEX NETWORK SWITCH ASSEMBLY Remove the switch. Measure the resistance of the switch when the switch is operated. Resistance MULTIPLEX NETWORK SWITCH ASSEMBLY Switch Condition Tester Connection Specified Condition AUTO UP 1 (D) - 7 (E) 6 (U) - 12 (BW) Below 1ohm UP 1 (D) - 7 (E) 6 (U) - 12 (BW) Below 1ohm OFF 1 (D) - 7 (E) 6 (U) - 7 (E) Below 1ohm DOWN 6 (U) - 7 (E) 1 (D) - 12 (BW) Below 1ohm AUTO DOWN 6 (U) - 7 (E) 1 (D) - 12 (BW) Below 1ohm NG: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signals from the multiplex network master switch assembly to power window regulator switch assembly (Rear LH).

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1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR LH) Remove the switch. Measure the resistance of the switch when the switch is operated. Resistance POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR LH) Switch Condition Tester Connection Specified Condition UP 1 (D) - 2 (SD) 3 (U) - 4 (B) Below 1 ohm OFF 1 (D) - 2 (SD) 3 (U) - 5 (SU) Below 1 ohm DOWN 1 (D) - 4 (B) 3 (U) - 5 (SU) Below 1 ohm NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR LH) OK: PROCEED TO NEXT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signals from the multiplex network master switch assembly to power window regulator switch assembly (Rear RH).

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1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR RH) Remove the switch. Measure the resistance of the switch when the switch is operated. Resistance POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR RH) Switch Condition Tester Connection Specified Condition UP 1 (D) - 2 (SD) 3 (U) - 4 (B) Below 1 ohm OFF 1 (D) - 2 (SD) 3 (U) - 5 (SU) Below 1 ohm AUTO DOWN 1 (D) - 4 (B) 3 (U) - 5 (SU) Below 1 ohm NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (REAR RH) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signal from the multiplex network master switch assembly to power window regulator motor assembly (Driver side).

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1. INSPECT POWER WINDOW REGULATOR MOTOR (DRIVER SIDE) Remove the power window motor. Apply battery voltage to the motor connector according to «POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)»(ref-245161-S37573782752006102400000) . NOTE: Do not apply battery voltage to any terminals except terminal 1 and 2. Standard POWER WINDOW REGULATOR MOTOR (DRIVER SIDE) Measurement Condition Specified Condition Battery positive (+) -> Terminal 2 (U) Battery negative (-) -> Terminal 1 (D) Motor gear rotates clockwise Battery positive (+) -> Terminal 1 (D) Battery negative (-) -> Terminal 2 (U) Motor gear rotates counterclockwise NG: REPLACE POWER WINDOW REGULATOR MOTOR (DRIVER SIDE) OK: Go to next step
2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH) Disconnect the I4 and I6 connectors. Measure the resistance of the wire harness side connectors. Resistance WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK MASTER SWITCH Tester Connection Condition Specified Condition I4-1 - I6-9 Always Below 1 ohm I4-2 - I6-4 Always Below 1 ohm I4-1 - Body ground Always 10 kohm or higher I4-2 - Body ground Always 10 kohm or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signal from the multiplex network switch to power window regulator motor.

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1. INSPECT POWER WINDOW REGULATOR MOTOR (FRONT PASSENGER SIDE) Remove the power window motor. Apply battery voltage to the motor connector according to «POWER WINDOW REGULATOR MOTOR (FRONT PASSENGER SIDE)»(ref-245161-S17326413772006102400000) . NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2. Standard POWER WINDOW REGULATOR MOTOR (FRONT PASSENGER SIDE) Measurement Condition Specified Condition Battery positive (+) -> Terminal 1 (D) Battery negative (-) -> Terminal 2 (U) Motor gear rotates clockwise Battery positive (+) -> Terminal 2 (U) Battery negative (-) -> Terminal 1 (D) Motor gear rotates counterclockwise NG: REPLACE POWER WINDOW REGULATOR MOTOR (FRONT PASSENGER SIDE) OK: Go to next step
2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH) Disconnect the H4 and H6 connectors. Measure the resistance of the wire harness side connectors. Resistance WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH Tester Connection Condition Specified Condition H4-2 - H6-6 Always Below 1 ohm H4-1 - H6-1 Always Below 1 ohm H4-2 - Body ground Always 10 kohm or higher H4-1 - Body ground Always 10 kohm or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signal from the power window regulator switch assembly (Rear LH) to power window regulator motor assembly (Rear LH).

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1. INSPECT POWER WINDOW REGULATOR MOTOR (REAR LH) Remove the power window regulator motor. Apply battery voltage to the motor connector according to «POWER WINDOW REGULATOR MOTOR (REAR LH)»(ref-245161-S33639594192006102400000) . NOTE: Do not apply battery to any terminals except terminals 1 and 2. Standard POWER WINDOW REGULATOR MOTOR (REAR LH) Measurement Condition Specified Condition Battery positive (+) -> Terminal 2 (D) Battery negative (-) -> Terminal 1(U) Motor gear rotates clockwise Battery positive (+) -> Terminal 1 (U) Battery negative (-) -> Terminal 2 (D) Motor gear rotates counterclockwise NG: REPLACE POWER WINDOW REGULATOR MOTOR (REAR LH) OK: Go to next step
2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - POWER WINDOW REGULATOR SWITCH) Disconnect the K2 and K4 connectors. Measure the resistance of the wire harness side connectors. Resistance WINDOW REGULATOR MOTOR - POWER WINDOW REGULATOR SWITCH Tester Connection Condition Specified Condition K4-1 - K2-3 Always Below 1 ohm K4-2 - K2-1 Always Below 1 ohm K4-1 - Body ground Always 10 kohm or higher K4-2 - Body ground Always 10 kohm or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

This circuit transmits signal from the power window regulator switch assembly (Rear RH) to power window regulator motor assembly (Rear RH).

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1. INSPECT POWER WINDOW REGULATOR MOTOR (REAR RH) Remove the power window regulator motor. Apply battery voltage to the motor connector according to «POWER WINDOW REGULATOR MOTOR (REAR RH)»(ref-245161-S26732579772006102400000) . NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2. Standard POWER WINDOW REGULATOR MOTOR (REAR RH) Measurement Condition Specified Condition Battery positive (+) -> Terminal 1 (U) Battery negative (-) -> Terminal 2 (D) Motor gear rotates clockwise Battery positive (+) - Terminal 2 (D) Battery negative (-) -> Terminal 1 (U) Motor gear rotates counterclockwise NG: REPLACE POWER WINDOW REGULATOR MOTOR (REAR RH) OK: Go to next step
2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - POWER WINDOW REGULATOR SWITCH) Disconnect the J2 and J4 connectors. Measure the resistance of the wire harness side connectors. Resistance WINDOW REGULATOR MOTOR - POWER WINDOW REGULATOR SWITCH Tester Connection Condition Specified Condition J4-1 - J2-3 Always Below 1 ohm J4-2 - J2-1 Always Below 1 ohm J4-1 - Body ground Always 10 kohm or higher J4-2 - Body ground Always 10 kohm or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

When the window lock switch on the multiplex network master switch is in the LOCK position, the front passenger door power window regulator and rear LH and RH power window switches cannot operate their respective power windows.

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1. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Remove the multiplex network master switch with connector still connected. Measure the voltage of the wire harness side connector. Standard voltage MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Switch Condition Tester Connection Specified Condition H6-15 (PCT) - Body ground Window lock switch is OFF -> ON 0 V -> 2 V or less H6-13 (TX) - Body ground Ignition switch ON 10 to 14 V NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY OK: Go to next step
2. CHECK WIRE HARNESS (MULTIPLEX NETWORK MASTER SWITCH - MULTIPLEX NETWORK SWITCH) Disconnect the H6 and G6 connectors. Measure the resistance of the wire harness side connector. Standard resistance MULTIPLEX NETWORK MASTER SWITCH - MULTIPLEX NETWORK SWITCH Switch Condition Tester Connection Specified Condition H6-15 (PCT) - G6-11 (PCT) Always Below 1 ohm H6-15 (PCT) - Body ground Always 10 kohm or higher H6-13 (TX) - G6-2 (RX) Always Below 1 ohm H6-13 (TX) - Body ground Always 10 kohm or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-245161-S32458254122006102400000)

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1. INSPECT FRONT PASSENGER POWER WINDOW SWITCH ASSEMBLY Remove the multiplex network switch assembly. Measure the resistance of the switch when the switch is operated. Resistance FRONT PASSENGER POWER WINDOW SWITCH ASSEMBLY Switch Condition Tester Connection Specified Condition AUTO UP 1 (D) - 7 (E) 6 (U) - 12 (BW) Below 1 ohm UP 1 (D) - 7 (E) 6 (U) - 12 (BW) Below 1 ohm OFF 1 (D) - 7 (E) 6 (U) - 7 (E) Below 1 ohm DOWN 6 (U) - 7 (E) 1 (D) - 12 (BW) Below 1 ohm AUTO DOWN 6 (U) - 7 (E) 1 (D) - 12 (BW) Below 1 ohm If the result is not as specified, replace the multiplex network switch assembly.

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1. INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) Check operation of the regulator motor. Remove the power window regulator motor assembly. Apply battery voltage to the motor terminals. NOTE: Do not apply voltage to the terminals except 1 and 2. Check that the motor operates smoothly. OK POWER WINDOW REGULATOR MOTOR Measurement Condition Specified Condition Battery positive (+) -> Terminal 2 (U) Battery negative (-) -> Terminal 1 (D) Motor gear rotates clockwise Battery positive (+) -> Terminal 1 (D) Battery negative (-) -> Terminal 2 (U) Motor gear rotates counterclockwise Check the PTC operation inside the regulator motor. NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle. Disconnect the driver side power window regulator motor connector. Connect the ammeter's positive (+) lead to terminal 1 (D) of the wire harness side connector and the negative (-) lead to the battery's negative terminal. Connect the battery's positive (+) lead to terminal 2 (U) of the wire harness side connector, and raise the window to the fully closed position. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds. Disconnect the leads from the terminals. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 1 (D) and the negative (-) lead to terminal 2 (U). Check that the window begins to descend. If the result is not as specified, replace the motor assembly.
2. INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY Check operation of the regulator motor. Remove the power window regulator motor assembly. Apply battery voltage to the motor terminals. NOTE: Do not apply voltage to the terminals except 1 and 2. Check that the motor operates smoothly. OK POWER WINDOW REGULATOR MOTOR Measurement Condition Specified Condition Battery positive (+) -> Terminal 1 (D) Battery negative (-) -> Terminal 2 (U) Motor gear rotates clockwise Battery positive (+) -> Terminal 2 (U) Battery negative (-) -> Terminal 1 (D) Motor gear rotates counterclockwise Check the PTC operation inside the regulator motor. NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle. Disconnect the driver side power window regulator motor connector. Connect the ammeter's positive (+) lead to terminal 2 (U) of the wire harness side connector and the negative (-) lead to the battery's negative terminal. Connect the battery's positive (+) lead to terminal 1 (D) of the wire harness side connector, and raise the window to the fully closed position. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds. Disconnect the leads from the terminals. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 2 (U) and the negative (-) lead to terminal 1 (D). Check that the window begins to descend. If the result is not as specified, replace the motor assembly.
3. INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH) Check operation of the regulator motor. Remove the power window regulator motor assembly. Apply battery voltage to the motor terminals. NOTE: Do not apply voltage to the terminals except 1 and 2. Check that the motor operates smoothly. OK POWER WINDOW REGULATOR MOTOR Measurement Condition Specified Condition Battery positive (+) -> Terminal 2 (D) Battery negative (-) -> Terminal 1 (U) Motor gear rotates clockwise Battery positive (+) -> Terminal 1 (U) Battery negative (-) -> Terminal 2 (D) Motor gear rotates counterclockwise Check the PTC operation inside the regulator motor. NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle. Disconnect the driver side power window regulator motor connector. Connect the ammeter's positive (+) lead to terminal 1 (U) of the wire harness side connector and the negative (-) lead to the battery's negative terminal. Connect the battery's positive (+) lead to terminal 2 (D) of the wire harness side connector, and raise the window to the fully closed position. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds. Disconnect the leads from the terminals. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 1 (U) and the negative (-) lead to terminal 2 (D). Check that the window begins to descend. If the result is not as specified, replace the motor assembly.
4. INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH) Check operation of the regulator motor. Remove the power window regulator motor assembly. Apply battery voltage to the motor terminals. NOTE: Do not apply voltage to the terminals except 1 and 2. Check that the motor operates smoothly. OK POWER WINDOW REGULATOR MOTOR Measurement Condition Specified Condition Battery positive (+) -> Terminal 1 (U) Battery negative (-) -> Terminal 2 (D) Motor gear rotates clockwise Battery positive (+) -> Terminal 2 (D) Battery negative (-) -> Terminal 1 (U) Motor gear rotates counterclockwise Check the PTC operation inside the regulator motor. NOTE: The work must be performed with the power window regulator and door glass installed in the vehicle. Disconnect the driver side power window regulator motor connector. Connect the ammeter's positive (+) lead to terminal 2 (D) of the wire harness side connector and the negative (-) lead to the battery's negative terminal. Connect the battery's positive (+) lead to terminal 1 (U) of the wire harness side connector, and raise the window to the fully closed position. Continue to apply voltage, and check that the current changes to less than 1 A within 4 to 90 seconds. Disconnect the leads from the terminals. Approximately 60 seconds later, connect the battery's positive (+) lead to terminal 2 (D) and the negative (-) lead to terminal 1 (U). Check that the window begins to descend. If the result is not as specified, replace the motor assembly.

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1. The defogger system and rear view mirror system use heater wires to defog the rear windshield and rear view mirror, respectively. The defogger switch is installed on the vehicles equipped with the rear window defogger system and rear view mirror system. The defogger switch operates both the defogger system and the rear view heater system. Both systems are part of the same circuit.
2. This system is activated when the ignition switch is turned on (IG) and the rear window defogger switch is pushed. This switch is provided with a timer function to keep the defogger and mirror heater on for approximately. 15 minutes.