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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT RADIO RECEIVER ASSY 
    1. Disconnect the radio receiver assy connector R12.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS RESISTANCE

      Tester connection Condition Specified condition
      REV - Body ground Ignition switch to ON. Shift lever is moved to R position. 10 to 14 V
      REV - Body ground Ignition switch to ON. Shift lever is moved to except R position. Below 1 V
      Fig 1: Disconnecting Radio Receiver Assy Connector R12
      G02895072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: REPLACE RADIO RECEIVER ASSY 
    2. NG: Go to next step. 
  2. CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSY - PARK/NEUTRAL POSITION SWITCH ASSY) 
    1. Disconnect the connector from the radio and navigation assy R12 and park/neutral position switch assy A4.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS RESISTANCE

      Tester connection Condition Specified condition
      REV - A4-1 Always Below 1 Ω
      REV - Body ground Always 10 k Ω or higher
      Fig 2: Disconnecting Connector From Radio And Navigation Assy R12
      G02895073Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 3: Disconnecting Connector From Park/Neutral Position Switch Assy A4
      G02895074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE RADIO AND NAVIGATION ASSY (SEE  REPLACEMENT  )