Audio And Visual System Speaker Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK SPEAKER

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

CHECK WIRE HARNESS (RADIO RECEIVER - FRONT NO. 1 SPEAKER)

INSPECT REAR NO. 1 SPEAKER ASSEMBLY

CHECK WIRE HARNESS (RADIO RECEIVER - REAR NO. 1 SPEAKER)

AUDIO AND VISUAL SYSTEM - Speaker Circuit


DESCRIPTION

The radio receiver sends sound signals to the speakers.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit


INSPECTION PROCEDURE

1.CHECK SPEAKER

  1. Check that each speaker sounds.

    Result
    Result
    		Proceed to
    Front No. 1 speaker does not operate
    		A
    Rear No. 1 speaker does not operate
    		B


B
Go to step 4
A


2.INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

  1. Check the front No. 1 speaker (Toyota Fortuner RM0000011Q1002X.html).

    OK:
    Front No. 1 speaker is normal.


NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY
OK


3.CHECK WIRE HARNESS (RADIO RECEIVER - FRONT NO. 1 SPEAKER)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the R2 receiver connector.

  1. Disconnect the S15 or S16 receiver connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    R2-1 (FR+) - S16-1
    		Below 1 Ω
    R2-5 (FR-) - S16-2
    		Below 1 Ω
    R2-1 (FR+) - Body ground
    		10 kΩ or higher
    R2-5 (FR-) - Body ground
    		10 kΩ or higher
    R2-2 (FL+) - S15-1
    		Below 1 Ω
    R2-6 (FL-) - S15-2
    		Below 1 Ω
    R2-2 (FL+) - Body ground
    		10 kΩ or higher
    R2-6 (FL-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE

4.INSPECT REAR NO. 1 SPEAKER ASSEMBLY

  1. Check the rear No. 1 speaker (Toyota Fortuner RM0000011Q2003X.html).

    OK:
    Rear No. 1 speaker is normal.


NG
REPLACE REAR NO. 1 SPEAKER ASSEMBLY
OK


5.CHECK WIRE HARNESS (RADIO RECEIVER - REAR NO. 1 SPEAKER)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Audio Visual.Audio And Visual System.Audio And Visual System Speaker Circuit

  1. Disconnect the R3 receiver connector.

  1. Disconnect the S17 or S18 receiver connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    R3-1 (RR+) - S18-1
    		Below 1 Ω
    R3-3 (RR-) - S18-2
    		Below 1 Ω
    R3-1 (RR+) - Body ground
    		10 kΩ or higher
    R3-3 (RR-) - Body ground
    		10 kΩ or higher
    R3-2 (RL+) - S17-1
    		Below 1 Ω
    R3-6 (RL-) - S17-2
    		Below 1 Ω
    R3-2 (RL+) - Body ground
    		10 kΩ or higher
    R3-6 (RL-) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE