REAR SEAT ENTERTAINMENT SYSTEM Sound Signal Circuit between Multi-display Controller and Head-phone Terminal

DESCRIPTION

This is the sound signal circuit between the multi-display controller sub-assembly and each headphone terminal.

WIRING DIAGRAM

B004W17E04

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - REAR SEAT ARMREST ASSEMBLY CENTER)


    1. Disconnect the L137 multi-display controller sub-assembly connector.

    2. Disconnect the L80 rear seat armrest assembly center connector.

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

      Standard Resistance
      for RH Side
      Tester Connection Condition Specified Condition
      L137-7 (HP2R) - L80-20 (HP2R) Always Below 1 Ω
      L137-9 (HP2L) - L80-22 (HP2L) Always Below 1 Ω
      L137-8 (SLD6) - L80-21 (SGN2) Always Below 1 Ω
      L137-7 (HP2R) - Body ground Always Below 1 Ω
      L137-9 (HP2L) - Body ground Always Below 1 Ω
      L137-8 (SLD6) - Body ground Always Below 1 Ω
      for LH Side
      Tester Connection Condition Specified Condition
      L137-3 (HP1R) - L80-9 (HP1R) Always Below 1 Ω
      L137-5 (HP1L) - L80-11 (HP1L) Always Below 1 Ω
      L137-4 (SLD5) - L80-10 (SGN1) Always Below 1 Ω
      L137-3 (HP1R) - Body ground Always Below 1 Ω
      L137-5 (HP1L) - Body ground Always Below 1 Ω
      L137-4 (SLD5) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT REAR SEAT ARMREST ASSEMBLY CENTER


    1. B004TTCC02
      *A for RH Side
      *B for LH Side
      *a

      Component with harness connected

      (to Wire Harness)
      *b

      Component with harness connected

      (to Headphone Terminal RH)
      *c

      Component with harness connected

      (to Headphone Terminal LH)

      Remove the rear seat armrest assembly center.

      Click here

    2. Remove the headphone terminal.

      Click here

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

      Standard Resistance
      for RH Side
      Tester Connection Condition Specified Condition
      20(HP2R) - A-5(HPR2) Always Below 1 Ω
      22(HP2L) - A-6(HPL2) Always Below 1 Ω
      21(SGN2) - A-7(SGND2) Always Below 1 Ω
      for LH Side
      Tester Connection Condition Specified Condition
      9(HP1R) - B-1(HPR1) Always Below 1 Ω
      11(HP1L) - B-2(HPL1) Always Below 1 Ω
      10(SGN1) - B-3(SGND1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR SEAT ARMREST ASSEMBLY CENTER Click here

    OK

  3. CHECK HEADPHONE TERMINAL


    1. Replace the malfunctioning headphone terminal with a new one or normally functioning headphone terminal.

      Click here

    2. Check if the same malfunction occurs again.

      Result
      Result Proceed to
      The system returns to normal A
      Malfunction recurs B

    A

    END (HEADPHONE TERMINAL IS DEFECTIVE)

    B

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here