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Diagnosis System [08/2019 - ]

  1. FUNCTION OF WARNING INDICATOR AND MESSAGE 
    1. If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message is displayed on the multi-information display.
      GTY535348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a PCS Warning Light
      PCS warning light Warning Message Detail DTC/RoB
      Illuminates "Pre-Collision System Malfunction Visit Your Dealer" Pre-collision system malfunctioning Stored
      Illuminates "Pre-Collision System Unavailable"
      • Millimeter wave radar sensor assembly misaligned
      • Millimeter wave radar sensor assembly temperature malfunction
      • Millimeter wave radar sensor assembly voltage malfunction
      Stored
      Illuminates "Pre-Collision System Unavailable Clean Sensor" Foreign matter attached to millimeter wave radar sensor assembly Stored
      Illuminates "Front Camera Unavailable"
      • Abnormal forward recognition camera voltage
      • Forward recognition camera temperature outside of operational range
      • Forward recognition camera recognition stopped
      Stored
      Illuminates "Front Camera Unavailable See Owner's Manual" Front of forward recognition camera or windshield glass is dirty or fogged Stored
      Illuminates "VSC Turned Off Pre-Collision Brake System Unavailable" VSC system is disabled Not stored

      HINT: 

      PCS WARNING LIGHT ILLUMINATION STATUS

      PCS Warning Light Condition
      Illuminates Pre-collision system malfunctioning (DTC stored)
      Pre-collision system temporarily disabled
      Pre-collision system disabled
      VSC system disabled
      Not illuminated Other
  2. INITIAL CHECK 
    1. An initial check is performed when the power switch is off for more than 2 seconds and then turned on (IG). The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds.
    2. If a malfunction is detected during the initial check, the PCS warning light in the combination meter assembly will illuminate and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.
  3. CONSTANT CHECK 
    1. The forward recognition camera constantly monitors the pre-collision system for malfunctions after the power switch is turned on (IG) and the initial check (approximately 3 seconds) has completed.
    2. If a malfunction is detected during the constant check, the PCS warning light in the combination meter assembly will illuminate and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.