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Inspection Procedure

  1. CHECK AUDIO MODEL 
    1. Check the audio models.

      Result 

      RESULT

      Result Proceed to
      Premium Sound Models A
      Standard Models B

    B: Go to step   11 

    A: Go TO NEXT STEP. 

  2. CHECK SPEAKER 
    1. Check that the speakers sound.

      Result 

      RESULT

      Result Proceed to
      Front No. 1 speaker does not operate A
      Front No. 2 speaker does not operate B
      Rear No. 1 speaker does not operate C
      Stereo component speaker rear does not operate D
      All speakers do not operate E

    B: Go to step   5 

    C: Go to step   7 

    D: Go to step   9 

    E: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

    A: Go TO NEXT STEP. 

  3. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER) 
    1. Disconnect the L13 or L14 amplifier connector.
    2. Disconnect the G1 or H1 speaker connector.
      Fig 1: Disconnecting G1, H1 & L14 Connector Termunals
      G04491217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L14-3 (FR-) - G1-2 Below 1 Ω
      L14-9 (FR+) - G1-1 Below 1 Ω
      L14-1 (FL-) - H1-2 Below 1 Ω
      L14-2 (FL+) - H1-1 Below 1 Ω
      L14-3 (FR-) - Body ground 10 kΩ or higher
      L14-9 (FR+) - Body ground 10 kΩ or higher
      L14-1 (FL-) - Body ground 10 kΩ or higher
      L14-2 (FL+) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  4. INSPECT FRONT NO. 1 SPEAKER 
    1. Check the front No. 1 speaker (see INSPECTION ).

      OK: Front No. 1 speaker is normal. 

    NG: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY 

    OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

  5. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER) 
    1. Disconnect the L15 amplifier connector.
    2. Disconnect the G7 or H6 speaker connector.
      Fig 2: Disconnecting L15 & G7 Connector Terminals
      G04491218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L15-6 (FR-) - G7-2 Below 1 Ω
      L15-2 (FR+) - G7-1 Below 1 Ω
      L15-7 (FL-) - H6-2 Below 1 Ω
      L15-8 (FL+) - H6-1 Below 1 Ω
      L15-6 (FR-) - Body ground 10 kΩ or higher
      L15-2 (FR+) - Body ground 10 kΩ or higher
      L15-7 (FL-) - Body ground 10 kΩ or higher
      L15-8 (FL+) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  6. INSPECT FRONT NO. 2 SPEAKER 
    1. Check the front No. 2 speaker (see INSPECTION ).

      OK: Front No. 2 speaker is normal. 

    NG: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY 

    OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

  7. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR NO. 1 SPEAKER) 
    1. Disconnect the L14 or L15 amplifier connector.
    2. Disconnect the J2 or I2 speaker connector.
      Fig 3: Identifying L14, L15, J2 & I2 Connector Terminals
      G04491219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L15-3 (RL+) - J2-1 Below 1 Ω
      L15-9 (RL-) - J2-2 Below 1 Ω
      L15-10 (RR+) - I2-1 Below 1 Ω
      L15-4 (RR-) - I2-2 Below 1 Ω
      L15-3 (RL+) - Body ground 10 kΩ or higher
      L15-9 (RL-) - Body ground 10 kΩ or higher
      L15-10 (RR+) - Body ground 10 kΩ or higher
      L15-4 (RR-) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  8. INSPECT REAR NO. 1 SPEAKER 
    1. Check the rear No. 1 speaker (see INSPECTION ).

      OK: Rear No. 1 speaker is normal. 

    NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY 

    OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

  9. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - STEREO COMPONENT SPEAKER REAR) 
    1. Disconnect the L14 amplifier connector.
    2. Disconnect the Q5 speaker connector.
      Fig 4: Identifying L14 & Q5 Connector Terminals
      G04491220Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      L14-5 (WFL+) - Q5-1 (WF+) Below 1 Ω
      L14-12 (WFL-) - Q5-2 (WF-) Below 1 Ω
      L14-10 (WFR-) - Q5-3 (WF-) Below 1 Ω
      L14-4 (WFR+) - Q5-4 (WF+) Below 1 Ω
      L14-5 (WFL+) - Body ground 10 kΩ or higher
      L14-12 (WFL-) - Body ground 10 kΩ or higher
      L14-10 (WFR+) - Body ground 10 kΩ or higher
      L14-4 (WFR) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  10. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY REAR 
    1. Check the stereo component speaker rear (see INSPECTION ).

      OK: Stereo component speaker rear is normal. 

    NG: REPLACE STEREO COMPONENT SPEAKER ASSEMBLY REAR 

    OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

  11. CHECK SPEAKER 
    1. Check that the speakers sound.

      Result 

      RESULT

      Result Proceed to
      Front No. 1 speaker does not operate A
      Front No. 2 speaker does not operate B
      Rear No. 1 speaker does not operate C
      All speakers do not operate D

    B: Go to step   14 

    C: Go to step   16 

    D: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

    A: Go TO NEXT STEP. 

  12. CHECK FRONT NO. 2 SPEAKER ASSEMBLY 
    1. Check that the front No. 2 speaker sounds.

      OK: Speaker sounds. 

    NG: Go to step   14 

    OK: Go TO NEXT STEP. 

  13. CHECK WIRE HARNESS (FRONT NO. 1 SPEAKER - FRONT NO. 2 SPEAKER) 
    1. Disconnect the H1 and H7, or G1 and G8 speaker connectors.
    2. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      H7-3 (+) - H1-1 Below 1 Ω
      H7-1 (-) - H1-2 Below 1 Ω
      G8-3 (+) - G1-1 Below 1 Ω
      G8-1 (-) - G1-2 Below 1 Ω
      H7-3 (+) - Body ground 10 kΩ or higher
      H7-1 (-) - Body ground 10 kΩ or higher
      G8-3 (+) - Body ground 10 kΩ or higher
      G8-1 (-) - Body ground 10 kΩ or higher
      Fig 5: Identifying H1, H7, G1 & G8 Speaker Connectors
      G04491221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY 

  14. CHECK WIRE HARNESS (RADIO RECEIVER - FRONT NO. 2 SPEAKER) 
    1. Disconnect the E47 receiver connector.
    2. Disconnect the H7 or G8 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E47-1 (FR+) - G8-4 (TWR+) Below 1 Ω
      E47-5 (FR-) - G8-2 (TWR-) Below 1 Ω
      E47-2 (FL+) - H7-4 (TWL+) Below 1 Ω
      E47-6 (FL-) - H7-2 (TWL-) Below 1 Ω
      E47-1 (FR+) - Body ground 10 kΩ or higher
      E47-5 (FR-) - Body ground 10 kΩ or higher
      E47-2 (FL+) - Body ground 10 kΩ or higher
      E47-6 (FL-) - Body ground 10 kΩ or higher
      Fig 6: Identifying E47, H7 & G8 Connector Terminals
      G04491222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  15. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY 
    1. Check that the malfunction disappears when another speaker in good condition is installed.

      OK: Malfunction disappear. 

      HINT:

      • Connect all connectors to the speakers.
      • When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

    OK: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY 

    NG: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

  16. CHECK WIRE HARNESS (RADIO RECEIVER - REAR NO. 1 SPEAKER) 
    1. Disconnect the E48 receiver connector.
    2. Disconnect the J2 or I2 receiver connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E48-2 (RL+) - J2-1 Below 1 Ω
      E48-6 (RL-) - J2-2 Below 1 Ω
      E48-1 (RR+) - I2-1 Below 1 Ω
      E48-3 (RR-) I2-2 Below 1 Ω
      E48-2 (RL+) -Body ground 10 kΩ or higher
      E48-6 (RL-) - Body ground 10 kΩ or higher
      E48-1 (RR+) - Body ground 10 kΩ or higher
      E48-3 (RR-) - Body ground 10 kΩ or higher
      Fig 7: Identifying E48, J2 & I1 Connector Terminals
      G04491223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: Go TO NEXT STEP. 

  17. INSPECT REAR NO. 1 SPEAKER 
    1. Check the rear No. 1 speaker (see INSPECTION ).

      OK: Rear No. 1 speaker is normal. 

    NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY 

    OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

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