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Inspection Procedure

  1. CHECK SPEAKER 

    Result: 

    SPEAKER TEST RESULT

    Result Proceed to
    All speakers do not sound A
    Front No. 1 speaker RH does not sound B
    Front No. 2 speaker RH does not sound C
    Front No. 1 speaker LH does not sound D
    Front No. 2 speaker LH does not sound E
    Stereo component speaker RH does not sound F
    Stereo component speaker LH does not sound G
    Rear speaker RH does not sound H
    Rear speaker LH does not sound I
    Rear speaker No. 2 does not sound J
    1. B: Go to step   2 . 
    2. C: Go to step   3 . 
    3. D: Go to step   5 . 
    4. E: Go to step   6 . 
    5. F: Go to step   8 . 
    6. G: Go to step   10 . 
    7. H: Go to step   12 . 
    8. I: Go to step   14 . 
    9. J: Go to step   16 . 
    10. A: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  
  2. INSPECT FRONT NO. 1 SPEAKER ASSY RH 
    1. Check that malfunction disappears when the speaker is replaced with a normal one.

      OK: Malfunction disappears. 

      HINT:

      • Connect all connectors to speakers.
      • If the right front or left front speaker is suspected to be malfunctioning, inspect by interchanging the right front and left front speaker.
    1. NG: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
    2. OK: END 
  3. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - FRONT NO. 2 SPEAKER ASSY RH) 
    1. Disconnect the S23 amplifier connector.
    2. Disconnect the D16 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - FRONT NO. 2 SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      S23-1 (TFR+) - D16-1 Below 1 ohms
      S23-14 (TFR-) - D16-2 Below 1 ohms
      S23-1 (TFR+) - Body ground 10 k ohms or higher
      S23-14 (TFR-) - Body ground 10 k ohms or higher
      Fig 1: Identifying Wire Harness (Stereo Component Amplifier Assy - Front No. 2 Speaker Assy RH)
      G02956352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  4. INSPECT FRONT NO. 2 SPEAKER ASSY RH 
    1. Disconnect the D16 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      FRONT NO. 2 SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 5.4 ohms
      Fig 2: Identifying Front No. 2 Speaker Assy RH Connector Terminal
      G02956353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE FRONT NO. 2 SPEAKER ASSY RH (See  FRONT NO.2 SPEAKER ASSY  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  5. INSPECT FRONT NO. 1 SPEAKER ASSY LH 
    1. Check that malfunction disappears when the speaker is replaced with a normal one.

      OK: Malfunction disappears. 

      HINT:

      • Connect all connectors to speakers.
      • If the right front or left front speaker is suspected to be malfunctioning, inspect by interchanging the right front and left front speaker.
    1. NG: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
    2. OK: END 
  6. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - FRONT NO. 2 SPEAKER ASSY LH) 
    1. Disconnect the S23 amplifier connector.
    2. Disconnect the D15 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - FRONT NO. 2 SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      S23-2 (TFL+) - D15-1 Below 1 ohms
      S23-15 (TFL-) - D15-2 Below 1 ohms
      S23-2 (TFL+) - Body ground 10 k ohms or higher
      S23-15 (TFL-) - Body ground 10 k ohms or higher
      Fig 3: Identifying Stereo Component Amplifier Assy & Front No. 2 Speaker Assy LH Connector Terminal
      G02956354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  7. INSPECT FRONT NO. 2 SPEAKER ASSY LH 
    1. Disconnect the D15 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      FRONT NO. 2 SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 5.4 ohms
      Fig 4: Identifying Front No. 2 Speaker Assy LH Connector Terminal
      G02956355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE FRONT NO. 2 SPEAKER ASSY LH (See  FRONT NO.2 SPEAKER ASSY  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  8. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - STEREO COMPONENT SPEAKER ASSY RH) 
    1. Disconnect the S22 amplifier connector.
    2. Disconnect the W5 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - STEREO COMPONENT SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      S22-1 (FR+) - W5-1 Below 1 ohms
      S22-8 (FR-) - W5-2 Below 1 ohms
      S22-1 (FR+) - Body ground 10 k ohms or higher
      S22-8 (FR-) - Body ground 10 k ohms or higher
      Fig 5: Identifying Stereo Component Amplifier Assy & Stereo Component Speaker Assy RH Connector Terminals
      G02956356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  9. INSPECT STEREO COMPONENT SPEAKER ASSY RH 
    1. Disconnect the W5 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      STEREO COMPONENT SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 8 ohms
      Fig 6: Identifying Stereo Component Speaker Assy RH Connector Terminal
      G02956357Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE STEREO COMPONENT SPEAKER ASSY RH (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  10. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - STEREO COMPONENT SPEAKER ASSY LH) 
    1. Disconnect the S22 amplifier connector.
    2. Disconnect the W6 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - STEREO COMPONENT SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      S22-2 (FL+) - W6-1 Below 1 ohms
      S22-9 (FL-) - W6-2 Below 1 ohms
      S22-2 (FL+) - Body ground 10 k ohms or higher
      S22-9 (FL-) - Body ground 10 k ohms or higher
      Fig 7: Identifying Stereo Component Amplifier Assy - Stereo Component Speaker Assy LH Connector Terminal
      G02956358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  11. INSPECT STEREO COMPONENT SPEAKER ASSY LH 
    1. Disconnect the W6 speaker connector.
    2. Measure the resistance of the speaker.
      STEREO COMPONENT SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 8 ohms
      Fig 8: Identifying Stereo Component Speaker Assy LH Connector Terminal
      G02956359Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE STEREO COMPONENT SPEAKER ASSY LH (See  STEREO COMPONENT SPEAKER ASSY  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  12. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY RH) 
    1. Disconnect the S22 amplifier connector.
    2. Disconnect the R11 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      S22-3 (RR+) - R11-1 Below 1 ohms
      S22-10 (RR-) - R11-2 Below 1 ohms
      S22-3 (RR+) - Body ground 10 k ohms or higher
      S22-10 (RR-) - Body ground 10 k ohms or higher
      Fig 9: Identifying Stereo Component Amplifier Assy & Rear Speaker Assy RH Connector Terminal
      G02956360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  13. INSPECT REAR SPEAKER ASSY RH 
    1. Disconnect the R11 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      REAR SPEAKER ASSY RH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 8 ohms
      Fig 10: Identifying Rear Speaker Assy RH Connector Terminal
      G02956361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE REAR SPEAKER ASSY RH (See  REPLACEMENT  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  14. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY LH) 
    1. Disconnect the S22 amplifier connector.
    2. Disconnect the R10 speaker connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      S22-4 (RL+) - R10-1 Below 1 ohms
      S22-11 (RL-) - R10-2 Below 1 ohms
      S22-4 (RL+) - Body ground 10 k ohms or higher
      S22-11 (RL-) - Body ground 10 k ohms or higher
      Fig 11: Identifying Stereo Component Amplifier Assy & Rear Speaker Assy LH Connector Terminal
      G02956362Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  15. INSPECT REAR SPEAKER ASSY LH 
    1. Disconnect the R10 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      REAR SPEAKER ASSY LH RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 8 ohms
      Fig 12: Identifying Rear Speaker Assy LH Connector Terminal
      G02956363Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE REAR SPEAKER ASSY LH (See  REPLACEMENT  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
  16. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY NO. 2) 
    1. Disconnect the S22 amplifier connector.
    2. Disconnect the W6 speaker connector.
    3. Measure the resistance of the wire harness side connectors.
      STEREO COMPONENT AMPLIFIER ASSY - REAR SPEAKER ASSY NO.2 RESISTANCE

      Tester Connection Specified Condition
      S22-6 (WF+) - W6-1 Below 1 ohms
      S22-5 (WF-) - W6-2 Below 1 ohms
      S22-5 (WF+) - Body ground 10 k ohms or higher
      S22-6 (WF-) - Body ground 10 k ohms or higher
      Fig 13: Identifying Stereo Component Amplifier Assy & Rear Speaker Assy No. 2 Connector Terminal
      G02956364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  17. INSPECT REAR SPEAKER ASSY NO. 2 
    1. Disconnect the W6 speaker connector.
    2. Measure the resistance of the speaker.

      Standard: 

      REAR SPEAKER ASSY NO. 2 RESISTANCE

      Tester Connection Specified Condition
      1--2 Approx. 14.5 ohms
      Fig 14: Identifying Rear Speaker Assy No. 2 Connector Terminal
      G02956365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE REAR SPEAKER ASSY NO. 2 (See  REAR SPEAKER ASSY NO. 2  ) 
    2. OK: REPLACE STEREO COMPONENT AMPLIFIER ASSY (See  STEREO COMPONENT AMPLIFIER ASSY  ) 
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