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Inspection Procedure

WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. Display Check Mode 
    1. Perform display check.
      1. Set up diagnosis system and read result of display vehicle check mode.

        STANDARD: Input signal is normal (TAIL) 

    1. OK : GO TO STEP   5 
    2. NG : GO TO NEXT STEP 
  2. Inspect Radio Receiver Assy (ILL+) 
    1. Check voltage.
      1. Measure voltage between terminals ILL+ and GND of radio receiver assy at each conditions, as shown in the chart.
        Fig 1: Measuring Voltage Between Terminals ILL+ And GND Of Radio Receiver Assembly
        G02822280Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Fig 2: Radio Receiver Assembly (ILL+) Connector Terminals Voltage Check Reference Table
      G02822279Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : CHECK AND REPLACE RADIO RECEIVER ASSY 
    2. NG : GO TO NEXT STEP 
  3. Inspect Radio Receiver Assy (ILL-) 
    1. Check continuity.
      1. Check that the continuity exists between terminals ILL- and GND of radio receiver assy and body ground.

        Standard:Continuity exists. 

        Fig 3: Checking Continuity Exists Between Terminals ILL- And GND Of Radio Receiver Assembly And Body Ground
        G02822281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : CHECK AND REPLACE RADIO RECEIVER ASSY 
    2. NG : GO TO NEXT STEP 
  4. Inspect Light Control Rheostat (See ) 
    1. OK : CHECK AND REPLACE RADIO RECEIVER ASSY 
    2. NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 
  5. Inspect Display 
    1. Check the screen display.
      1. Check that the screen dimmed by turning the headlight dimmer switch to ON.

        STANDARD: The screen dimming function is normal 

    1. NG : CHECK AND REPLACE RADIO RECEIVER ASSY 
    2. OK : GO TO NEXT STEP 
  6. Check Setting 
    1. Check the settings.
      1. Turn the ignition switch ON.
      2. Turn the power switch of the radio receiver assy ON to display the map.
      3. Operate the radio receiver assy, and check that The color of night screen is standard is set at the navigation condition setting.

        STANDARD: The setting is normal 

    1. NG : THE SETTING IS ABNORMAL 
    2. OK : CHECK AND REPLACE NAVIGATION ECU 
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