Audio And Visual System Speaker Circuit

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Audio Visual. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK STEREO COMPONENT AMPLIFIER

CHECK SPEAKER

INSPECT SPEAKER (CENTER)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (CENTER))

INSPECT TWEETER

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - TWEETER)

INSPECT SPEAKER (DOOR)

CHECK WIRE HARNESS (TWEETER - SPEAKER DOOR)

INSPECT SPEAKER (WOOFER)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER WOOFER)

CHECK SPEAKER

CHECK SPEAKER

INSPECT SPEAKER (CENTER)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (CENTER))

INSPECT SQUAWKER AND TWEETER

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SQUAWKER AND TWEETER)

INSPECT SPEAKER (FRONT DOOR)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (FRONT DOOR))

CHECK SPEAKER

INSPECT TWEETER (REAR)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - TWEETER (REAR))

INSPECT SPEAKER (REAR DOOR)

CHECK WIRE HARNESS (TWEETER (REAR) - SPEAKER (REAR DOOR))

INSPECT SPEAKER (REAR)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (REAR))

INSPECT SPEAKER (WOOFER)

CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER WOOFER)

AUDIO AND VISUAL SYSTEM - Speaker Circuit


DESCRIPTION

The stereo component amplifier sends sound signals to the speaker.

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit


Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit


Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit


INSPECTION PROCEDURE

1.CHECK STEREO COMPONENT AMPLIFIER

  1. Check stereo component amplifier model.

    Result:
    Model
    		Proceed to
    Standard model
    		A
    Mark Levinson model
    		B


B
Go to step 11
A


2.CHECK SPEAKER

  1. Check the malfunctioning speakers.

    Result:
    Result
    		Proceed to
    Speaker (Center)
    		A
    Tweeter
    		B
    Speaker (Door)
    		C
    Speaker (Woofer)
    		D


B
Go to step 5

C
Go to step 7

D
Go to step 9
A


3.INSPECT SPEAKER (CENTER)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the M2 speaker (center) connector.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 10 Ω


NG
REPLACE SPEAKER (CENTER)
OK


4.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (CENTER))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the M2 speaker (center) connector.

  1. Disconnect the V31 stereo component amplifier connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-3 (CTR+) - M2-1
    		Below 1 Ω
    V31-12 (CTR-) - M2-2
    		Below 1 Ω
    V31-3 (CTR+) - Body ground
    		10 kΩ or higher
    V31-12 (CTR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

5.INSPECT TWEETER


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the L23, L62, U4 and T4 tweeter connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 4 Ω


NG
REPLACE TWEETER
OK


6.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - TWEETER)


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V31 stereo component amplifier connector.

  1. Disconnect the L23, L62, U4 and T4 tweeter connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-8 (FL+) - L23-1
    		Below 1 Ω
    V31-19 (FL-) - L23-2
    		Below 1 Ω
    V31-9 (FR+) - L62-1
    		Below 1 Ω
    V31-20 (FR-) - L62-2
    		Below 1 Ω
    V31-6 (RL+) - U4-1
    		Below 1 Ω
    V31-17 (RL-) - U4-2
    		Below 1 Ω
    V31-7 (RR+) - T4-1
    		Below 1 Ω
    V31-18 (RR-) - T4-2
    		Below 1 Ω
    V31-8 (FL+) - Body ground
    		10 kΩ or higher
    V31-19 (FL-) - Body ground
    		10 kΩ or higher
    V31-9 (FR+) - Body ground
    		10 kΩ or higher
    V31-20 (FR-) - Body ground
    		10 kΩ or higher
    V31-6 (RL+) - Body ground
    		10 kΩ or higher
    V31-17 (RL-) - Body ground
    		10 kΩ or higher
    V31-7 (RR+) - Body ground
    		10 kΩ or higher
    V31-18 (RR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

7.INSPECT SPEAKER (DOOR)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the O1, N1, Q1 and P1 speaker (door) connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 4 Ω


NG
REPLACE SPEAKER (DOOR)
OK


8.CHECK WIRE HARNESS (TWEETER - SPEAKER DOOR)


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the L23, L62, U4 and T4 tweeter connectors.

  1. Disconnect the O1, N1, Q1 and P1 speaker (door) connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    L23-3 - O1-1
    		Below 1 Ω
    L23-4 - O1-2
    		Below 1 Ω
    L62-3 - N1-1
    		Below 1 Ω
    L62-4 - N1-2
    		Below 1 Ω
    U4-3 - P1-1
    		Below 1 Ω
    U4-4 - P1-2
    		Below 1 Ω
    T4-3 - Q1-1
    		Below 1 Ω
    T4-4 - Q1-2
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE TWEETER

9.INSPECT SPEAKER (WOOFER)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the V21 speaker (woofer) connector.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 2.5 Ω
    3 - 4


NG
REPLACE SPEAKER (WOOFER)
OK


10.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER WOOFER)


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V31 stereo component amplifier connector.

  1. Disconnect the V21 speaker (woofer) connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-5 (WF1+) - V21-4
    		Below 1 Ω
    V31-14 (WF1-) - V21-3
    		Below 1 Ω
    V31-4 (WF2+) - V21-2
    		Below 1 Ω
    V31-13 (WF2-) - V21-1
    		Below 1 Ω
    V31-5 (WF1+) - Body ground
    		10 kΩ or higher
    V31-14 (WF1-) - Body ground
    		10 kΩ or higher
    V31-4 (WF2+) - Body ground
    		10 kΩ or higher
    V31-13 (WF2-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

11.CHECK SPEAKER

  1. Check the malfunctioning speakers.

    Result:
    Result
    		Proceed to
    Malfunction condition from the front speaker
    		A
    Malfunction condition from the rear speaker
    		B


B
Go to step 19
A


12.CHECK SPEAKER

  1. Check the malfunctioning speakers.

    Result:
    Result
    		Proceed to
    Speaker (Center)
    		A
    Tweeter and squawker
    		B
    Speaker (Front door)
    		C


B
Go to step 15

C
Go to step 17
A


13.INSPECT SPEAKER (CENTER)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the M2 speaker (center) connector.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 8 Ω


NG
REPLACE SPEAKER (CENTER)
OK


14.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (CENTER))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the M2 speaker (center) connector.

  1. Disconnect the V31 stereo component amplifier connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-3 (CTR+) - M2-1
    		Below 1 Ω
    V31-12 (CTR-) - M2-2
    		Below 1 Ω
    V31-3 (CTR+) - Body ground
    		10 kΩ or higher
    V31-12 (CTR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

15.INSPECT SQUAWKER AND TWEETER


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the L23 and L62 squawker and tweeter connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 7 Ω


NG
REPLACE SQUAWKER AND TWEETER
OK


16.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SQUAWKER AND TWEETER)


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V31 stereo component amplifier connector.

  1. Disconnect the L23 and L62 squawker and tweeter connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-8 (FL+) - L23-1
    		Below 1 Ω
    V31-19 (FL-) - L23-2
    		Below 1 Ω
    V31-9 (FR+) - L62-1
    		Below 1 Ω
    V31-20 (FR-) - L62-2
    		Below 1 Ω
    V31-8 (FL+) - Body ground
    		10 kΩ or higher
    V31-19 (FL-) - Body ground
    		10 kΩ or higher
    V31-9 (FR+) - Body ground
    		10 kΩ or higher
    V31-20 (FR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

17.INSPECT SPEAKER (FRONT DOOR)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the O2 and N2 speaker (front door) connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 8 Ω


NG
REPLACE SPEAKER (FRONT DOOR)
OK


18.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (FRONT DOOR))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V30 stereo component amplifier connector.

  1. Disconnect the O2 and N2 speaker (front door) connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V30-3 (WFL+) - O2-1
    		Below 1 Ω
    V30-9 (WFL1-) - O2-2
    		Below 1 Ω
    V30-4 (WFR+) - N2-1
    		Below 1 Ω
    V30-10 (WFR-) - N2-2
    		Below 1 Ω
    V30-3 (WFL+) - Body ground
    		10 kΩ or higher
    V30-9 (WFL-) - Body ground
    		10 kΩ or higher
    V30-4 (WFR+) - Body ground
    		10 kΩ or higher
    V30-10 (WFR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

19.CHECK SPEAKER

  1. Check the malfunctioning speakers.

    Result:
    Result
    		Proceed to
    Tweeter (Rear)
    		A
    Speaker (Rear door)
    		B
    Speaker (Rear)
    		C
    Speaker (Woofer)
    		D


B
Go to step 22

C
Go to step 24

D
Go to step 26
A


20.INSPECT TWEETER (REAR)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the U4 and T4 tweeter (rear) connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 8 Ω


NG
REPLACE TWEETER (REAR)
OK


21.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - TWEETER (REAR))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V31 stereo component amplifier connector.

  1. Disconnect the U4 and T4 tweeter (rear) connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-6 (RL+) - U4-1
    		Below 1 Ω
    V31-17 (RL-) - U4-2
    		Below 1 Ω
    V31-7 (RR+) - T4-1
    		Below 1 Ω
    V31-18 (RR-) - T4-2
    		Below 1 Ω
    V31-6 (RL+) - Body ground
    		10 kΩ or higher
    V31-17 (RL-) - Body ground
    		10 kΩ or higher
    V31-7 (RR+) - Body ground
    		10 kΩ or higher
    V31-18 (RR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

22.INSPECT SPEAKER (REAR DOOR)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the P1 and Q1 speaker (rear door) connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 8 Ω


NG
REPLACE SPEAKER (REAR DOOR)
OK


23.CHECK WIRE HARNESS (TWEETER (REAR) - SPEAKER (REAR DOOR))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the Q1 and P1 speaker (rear door) connectors.

  1. Disconnect the U4 and T4 tweeter (rear) connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    U4-3 - Q1-1
    		Below 1 Ω
    U4-4 - Q1-2
    		Below 1 Ω
    T4-3 - P1-1
    		Below 1 Ω
    T4-4 - P1-2
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE TWEETER (REAR)

24.INSPECT SPEAKER (REAR)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the W21 and V17 speaker (rear) connectors.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 8 Ω


NG
REPLACE SPEAKER (REAR)
OK


25.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER (REAR))


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V30 stereo component amplifier connector.

  1. Disconnect the W20 and V17 speaker (rear) connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V30-1 (SL+) - W20-1
    		Below 1 Ω
    V30-5 (SL-) - W20-2
    		Below 1 Ω
    V30-2 (SR+) - V17-1
    		Below 1 Ω
    V30-6 (SR-) - V17-2
    		Below 1 Ω
    V30-1 (SL+) - Body ground
    		10 kΩ or higher
    V30-5 (SL-) - Body ground
    		10 kΩ or higher
    V30-2 (SR+) - Body ground
    		10 kΩ or higher
    V30-6 (SR-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER

26.INSPECT SPEAKER (WOOFER)


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Disconnect the V21 speaker (woofer) connector.

  1. Measure the resistance of the connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    1 - 2
    		Approx. 14 Ω
    3 - 4
    		Approx. 14 Ω


NG
REPLACE SPEAKER (WOOFER)
OK


27.CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - SPEAKER WOOFER)


    Lexus Gs430, Gs300. Uzs190 Grs190.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the V31 stereo component amplifier connector.

  1. Disconnect the V21 speaker (woofer) connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    V31-5 (WF1+) - V21-4
    		Below 1 Ω
    V31-14 (WF1-) - V21-3
    		Below 1 Ω
    V31-4 (WF2+) - V21-2
    		Below 1 Ω
    V31-13 (WF2-) - V21-1
    		Below 1 Ω
    V31-5 (WF1+) - Body ground
    		10 kΩ or higher
    V31-14 (WF1-) - Body ground
    		10 kΩ or higher
    V31-4 (WF2+) - Body ground
    		10 kΩ or higher
    V31-13 (WF2-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE STEREO COMPONENT AMPLIFIER