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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSY - RADIO AND NAVIGATION ASSY) 
    1. Disconnect the connectors from the radio and navigation assy R5 and combination meter assy C7.
    2. Measure the resistance according to the value(s) in SPECIFIED CONDITION  .

      Standard: 

      SPECIFIED CONDITION

      Tester connection Condition Specified condition
      SPD - C7-36 Always Below 1 Ω
      SPD - Body ground Always 10 kΩ or higher
      Fig 1: Identifying Radio & Navigation Assy
      G03049630Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Combination Meter Assy
      G03049631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: Go to Next Step. 
  2. INSPECT COMBINATION METER ASSY 
    1. Connect the combination meter assy connector C7.
    2. Measure the voltage.
      1. Move the shift lever to the neutral position.
      2. Jack up either one of the front wheels.
      3. Turn the ignition switch to the ON position.
      4. Measure the voltage between terminal C7-36 and body ground of the combination meter assy when the front wheels are turned slowly.
        Fig 3: Measuring Voltage Between Terminal C7-36 & Body Ground
        G03049632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Voltage is pulsed as shown  Fig 4  . 

      Fig 4: Voltage Graph
      G03049633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: GO TO COMBINATION METER SYSTEM (SEE  PRECAUTION  ) 
    2. OK: REPLACE RADIO AND NAVIGATION ASSY (SEE  REPLACEMENT  )