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Diagnosis System [06/2015 - ]

  1. DESCRIPTION 
    1. Automatic high beam system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and to repair it.
  2. CHECK DLC3 
    1. Check the DLC3.

      Refer to GENERAL INFORMATION [06/2015 - ]

  3. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage

      11 to 14 V (IG OFF)

      If the voltage is below 11 V, recharge or replace the auxiliary battery.

  4. DIAGNOSIS SYSTEM 
    1. If the automatic high beam system malfunctions, the automatic high beam indicator light turns off and "Headlight System Malfunction Visit Your Dealer" is displayed on the multi-information display.
      GTY499079Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Automatic High Beam Indicator Light
      *b Multi-information Display

      HINT: 

      When the system returns to normal, "Headlight System Malfunction Visit Your Dealer" is no longer displayed on the multi-information display.