LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2009 >> Tundra Base, 5.7 W >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Navigation/Multi-Info Display) >> Navigation System >> Speaker Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SPEAKER 
    1. Check the malfunctioning speakers.

      Result 

      RESULT REFERENCE

      Result Proceed to
      Malfunction in front speaker area A
      Malfunction in rear speaker area B

    B:  Go to step  11

    A: Go to Next Step 

  2. CHECK SPEAKER 
    1. Check the malfunctioning speakers.

      Result 

      RESULT REFERENCE

      Result Proceed to
      Front No. 1 speaker assembly A
      Front No. 2 speaker assembly B
      Front No. 3 speaker assembly C
      Front No. 4 speaker assembly D

    B:  Go to step  5

    C:  Go to step  7

    D:  Go to step  9

    A: Go to Next Step 

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY 
    1. Disconnect the L8*1 and M10*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 2 Always 1.8 to 2.6 Ω
      Fig 1: Identifying L8*1 And M10*2 Speaker Connectors Terminals
      G05652663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the speaker connectors.

    NG: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY  (See REMOVAL )

    OK: Go to Next Step 

  4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER) 
    1. Disconnect the L8*1 and M10*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Disconnect the I18 stereo component amplifier assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I18-1 (WFL+) - M10-1 Always Below 1 Ω
      I18-5 (WFL-) - M10-2
      I18-1 (WFL+) - Body ground Always 10 kΩ or higher
      I18-5 (WFL-) - Body ground

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I18-2 (WFR+) - L8-1 Always Below 1 Ω
      I18-6 (WFR-) - L8-2
      I18-2 (WFR+) - Body ground Always 10 kΩ or higher
      I18-6 (WFR-) - Body ground
      Fig 2: Identifying L8*1 And M10*2 Speaker Connectors Terminals
      G05652664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reconnect the speaker connectors.
    5. Reconnect the stereo component amplifier assembly connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

  5. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY 
    1. Disconnect the I10*1 and I12*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying I10*1 And I12*2 Speaker Connectors Terminals
      G05652665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 (+) - 3 (TWL+) Always Below 1 Ω
      2 (-) - 4 (TWL-)
      3 (TWL+) - 4 (TWL-) Always 1.5 to 2.5 Ω

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 (+) - 3 (TWR+) Always Below 1 Ω
      2 (-) - 4 (TWR-)
      3 (TWR+) - 4(TWR-) Always 1.5 to 2.5 Ω
    3. Reconnect the speaker connectors.

    NG: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY  (See REMOVAL )

    OK: Go to Next Step 

  6. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY FRONT NO. 2 SPEAKER) 
    1. Disconnect the I19 stereo component amplifier assembly connector.
    2. Disconnect the I10*1 and I12*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-3 (FL+) - I12-3 (TWL+) Always Below 1 Ω
      I19-8 (FL-) - I12-4 (TWL-)
      I19-3 (FL+) - Body ground Always 10 kΩ or higher
      I19-8 (FL-) - Body ground
      Fig 4: Identifying I19 Stereo Component Amplifier Assembly And I10*1, I12*2 Speaker Connectors Terminals
      G05652666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-10 (FR+) - I10-3 (TWR+) Always Below 1 Ω
      I19-9 (FR-) - I10-4 (TWR-)
      I19-10 (FR+) - Body ground Always 10 kΩ or higher
      I19-9 (FR-) - Body ground
    4. Reconnect the stereo component amplifier assembly connector.
    5. Reconnect the speaker connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

  7. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY 
    1. Disconnect the L1*1 and M1*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 3 Always 3.0 to 4.2 Ω
    3. Reconnect the speaker connectors.

    NG: REPLACE FRONT NO. 3 SPEAKER ASSEMBLY  (See REMOVAL )

    Fig 5: Identifying L1*1 And M1*2 Speaker Connectors Terminals
    G05652286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  8. CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER - FRONT NO. 3 SPEAKER) 
    1. Disconnect the L1*1, M1*2, I10*1 and I12*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I12-1(+) - M1-3 Always Below 1 Ω
      I12-2 (-) - M1-1
      I12-1 (+) - Body ground Always 10 kΩ or higher
      I12-2 (-) - Body ground

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I10-1 (+) - L1-3 Always Below 1 Ω
      I10-2 (-) - L1-1
      I10-1 (+) - Body ground Always 10 kΩ or higher
      I10-2 (-) - Body ground
      Fig 6: Identifying L1*1, M1*2, I10*1 And I12*2 Speaker Connectors Terminals
      G05652287Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the speaker connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY  (See REMOVAL )

  9. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY 
    1. Disconnect the I14 speaker connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 2 Always 1.5 to 2.1 Ω
    3. Reconnect the speaker connector. NG

    NG: REPLACE FRONT NO. 4 SPEAKER ASSEMBLY  (See REMOVAL )

    Fig 7: Identifying I14 Speaker Connector Terminals
    G05652288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  10. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 4 SPEAKER) 
    1. Disconnect the I14 speaker connector.
    2. Disconnect the I18 stereo component amplifier assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I18-3 (CTR+) - I14-1 Always Below 1 Ω
      I18-9 (CTR-) - I14-2
      I18-3 (CTR+) - Body ground Always 10 kΩ or higher
      I18-9 (CTR-) - Body ground
    4. Reconnect the speaker connector.
    5. Reconnect the stereo component amplifier assembly connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 8: Identifying I14 Speaker And I18 Stereo Component Amplifier Assembly Connector Terminals
    G05652289Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

  11. CHECK SPEAKER 
    1. Check the malfunctioning speakers.

      Result 

      RESULT REFERENCE

      Result Proceed to
      Rear No. 2 speaker assembly A
      Rear No. 1 speaker assembly B
      Quarter side speaker assembly C
      W/ Box No. 1 speaker assembly D

    B:  Go to step  14

    C:  Go to step  16

    D:  Go to step  18

    A: Go to Next Step 

  12. INSPECT REAR NO. 2 SPEAKER ASSEMBLY 
    1. Disconnect the N2*1 and N8*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 (-TW) - 3 (+TW) Always 3.0 to 4.2 Ω
      1 (-TW) - 2 (-) Always Below 1 Ω
      3 (+TW) - 4 (+)
      Fig 9: Identifying N2*1 And N8*2 Speaker Connectors Terminals
      G05652290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the speaker connectors.

    NG: REPLACE REAR NO. 2 SPEAKER ASSEMBLY  (See REMOVAL )

    OK: Go to Next Step 

  13. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR NO. 2 SPEAKER) 
    1. Disconnect the I19 stereo component amplifier assembly connector.
    2. Disconnect the N2*1 and N8*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-4 (RL+) - N8-3 (+TW) Always Below 1 Ω
      I19-11 (RL-) - N8-1 (-TW)
      I19-4 (RL+) - Body ground Always 10 kΩ or higher
      I19-11 (RL-) - Body ground

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-5 (RR+) - N2-3 (+TW) Always Below 1 Ω
      I19-12 (RR-) - N2-1 (-TW)
      I19-5 (RR+) - Body ground Always 10 kΩ or higher
      I19-12 (RR-) - Body ground
      Fig 10: Identifying N2*1 And N8*2 Speaker Connectors Terminals
      G05652672Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reconnect the stereo component amplifier assembly.
    5. Reconnect the speaker connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

  14. INSPECT REAR NO. 1 SPEAKER ASSEMBLY 
    1. Disconnect the N1*1 and N7*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 2 Always 1.8 to 2.6 Ω
      Fig 11: Identifying N1*1 And N7*2 Speaker Connectors Terminals
      G05652292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the speaker connectors.

    NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY  (See REMOVAL )

    OK: Go to Next Step 

  15. CHECK HARNESS AND CONNECTOR (REAR NO. 1 SPEAKER - REAR NO. 2 SPEAKER) 
    1. Disconnect the N1*1, N2*1, N7*2 and N8*2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      for LH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      N8-4 (+) - N7-1 Always Below 1 Ω
      N8-2 (-) - N7-2
      N8-4 (+) - Body ground Always 10 kΩ or higher
      N8-2 (-) - Body ground

      for RH Side 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      N2-4 (+) - N1-1 Always Below 1 Ω
      N2-2 (-) - N1-2
      N2-4 (+) - Body ground Always 10 kΩ or higher
      N2-2 (-) - Body ground
      Fig 12: Identifying N1*1, N2*1, N7*2 And N8*2 Speaker Connectors Terminals
      G05652293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Reconnect the speaker connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE REAR NO. 2 SPEAKER ASSEMBLY  (See REMOVAL )

  16. INSPECT QUARTER SIDE SPEAKER ASSEMBLY 
    1. Disconnect the O37*1 and O31*2 speaker connector.

      HINT:

      *1: for RH Side

      *2: for LH Side

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 2 Always 1.5 to 2.5 Ω
    3. Reconnect the speaker connectors.

    NG: REPLACE QUARTER SIDE SPEAKER ASSEMBLY  (See REMOVAL )

    Fig 13: Identifying O37*1 And O31*2 Speaker Connector Terminals
    G05652294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  17. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY QUARTER SIDE SPEAKER) 
    1. Disconnect the I18 and I19 stereo component amplifier assembly connectors.
    2. Disconnect the O37*1 and O31 *2 speaker connectors.

      HINT:

      *1: for RH Side

      *2: for LH Side

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-2(SR+) - O37-1 (+) Always Below 1 Ω
      I19-7(SR-) - O37-2(-)
      I18-8(SL+) - O31-1(+)
      I18-7(SL-) - O31-2(-)
      I19-2(SR+) - Body ground Always 10 kΩ or higher
      I19-7(SR-) - Body ground
      I18-8(SL+) - Body ground
      I18-7(SL-) - Body ground
    4. Reconnect the stereo component amplifier assembly connectors.
    5. Reconnect the speaker connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 14: Identifying O37*1 And O31*2 Speaker Connectors Terminals
    G05652295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

  18. INSPECT W/ BOX N0.1 SPEAKER ASSEMBLY 
    1. Disconnect the O13 speaker connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      1 - 2 Always Approx. 1.2 Ω
    3. Reconnect the speaker connector.

    NG: REPLACE W/ BOX N0.1 SPEAKER ASSEMBLY  (See REMOVAL )

    Fig 15: Identifying O13 Speaker Connector Terminals
    G05652296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  19. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - W/ BOX NO.1 SPEAKER) 
    1. Disconnect the I18 and I19 stereo component amplifier assembly connectors.
    2. Disconnect the O13 speaker connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      I19-1 (WF1+) - O13-1 (WF1+) Always Below 1 Ω
      I19-6 (WF1-) - O13-2 (WF1-)
      I18-4 (WF2+) - O13-3 (WF2+)
      I18-10 (WF2-) - O13-4 (WF2-)
      I19-1 (WF1+) - Body ground Always 10 kΩ or higher
      I19-6 (WF1-) - Body ground
      I18-4 (WF2+) - Body ground
      I18-10 (WF2-) - Body ground
    4. Reconnect the stereo component amplifier assembly connectors.
    5. Reconnect the speaker connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 16: Identifying I18, I19 Stereo Component Amplifier Assembly And O13 Speaker Connector Terminals
    G05652297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY  (See REMOVAL )

scientia non olet · About LEMON Manuals