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Inspection Procedure

  1. CHECK WIRE HARNESS (INSTRUMENT CLUSTER FINISH PANEL SUB-ASSY CENTER - NAVIGATION ECU) 
    1. Disconnect the M6 panel connector.
    2. Disconnect the N4 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      INSTRUMENT CLUSTER FINISH PANEL SUB-ASSY CENTER - NAVIGATION ECU

      Tester Connection Specified Condition
      M6-19 (VR) - N4-1 (VR) Below 1 ohms
      M6-23 (SYNC) - N4-8 (SYNC) Below 1 ohms
      M6-20 (R) - N4-2 (R) Below 1 ohms
      M6-21 (G) - N4-7 (G) Below 1 ohms
      M6-22 (B) - N4-3 (B) Below 1 ohms
      M6-24 (VG) - N4-6 (VG) Below 1 ohms
      M6-19 (VR) - Body ground 10 k ohms or higher
      M6-23 (SYNC) - Body ground 10 k ohms or higher
      M6-20 (R) - Body ground 10 k ohms or higher
      M6-21 (G) - Body ground 10 k ohms or higher
      M6-22 (B) - Body ground 10 k ohms or higher
      M6-24 (VG) - Body ground 10 k ohms or higher
      Fig 1: Checking Wire Harness (Instrument Cluster Finish Panel Sub-Assy Center - Navigation ECU)
      G02956558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: Go to next step. 
  2. INSPECT INSTRUMENT CLUSTER FINISH PANEL SUB-ASSY CENTER (MULTI-DISPLAY) 
    1. Remove the instrument cluster finish panel sub-assy center.
    2. Measure the resistance of the panel sub-assy.

      Standard: 

      INSTRUMENT CLUSTER FINISH PANEL SUB-ASSY CENTER (MULTI-DISPLAY)

      Tester Connection Specified Condition
      M6-19 (VR) - B-23 (VR) Below 1 ohms
      M6-23 (SYNC) - B-27 (SYNC) Below 1 ohms
      M6-20 (R) - B-24 (R) Below 1 ohms
      M6-21 (G) - B-25 (G) Below 1 ohms
      M6-22 (B) - B-26 (B) Below 1 ohms
      M6-24 (VG) - B-28 (VG) Below 1 ohms
      Fig 2: Inspecting Instrument Cluster Finish Panel Sub-Assy Center (Multi-Display)
      G02956559Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSY CENTER (See  MULTI-DISPLAY (CENTER DISPLAY)  ) 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   )