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Home >> Toyota >> 2018 >> Corolla SE, Standard Trans >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Lane Departure Alert System (W/ Steering Control) - Diagnostics - Introduction (Model Code: ZRE172) >> LANE DEPARTURE ALERT SYSTEM (W/ Steering Control) >> Diagnosis System [08/2016 - ] >> Diagnosis System [08/2016 - ]
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Diagnosis System [08/2016 - ]

  1. CHECK DLC3 
    1. Check the DLC3.

      Refer to GENERAL INFORMATION [08/2013 - ]

  2. FUNCTION OF WARNING INDICATOR AND MESSAGE 
    1. If the lane departure alert system is not functioning properly, the driver is warned by the lane departure alert indicator and a warning message displayed on the multi-information display.
      Master Warning Indicator Warning Message Details DTC Lane Departure Alert Indicator
      Illuminated
      • LANE DEPARTURE ALERT MALFUNCTION VISIT YOUR DEALER *1
      • Lane Departure Alert Malfunction Visit Your Dealer *2
      		 Lane departure alert system is malfunctioning Stored Illuminates (yellow)
      Not illuminated
      • FRONT CAMERA UNAVAILABLE *1
      • Front Camera System Unavailable *2
      • Abnormal forward recognition camera voltage
      • Forward recognition camera temperature outside of operational range
      • Other forward recognition camera malfunction
      		 Not stored Illuminates (yellow)
      Not illuminated
      • FRONT CAMERA UNAVAILABLE REMOVE DEBRIS ON WIND SHIELD *1
      • Front Camera Unavailable Remove Debris On Windshield *2
      		 Forward recognition camera view is unclear Not stored Illuminates (yellow)
      Illuminated
      • LANE DEPARTURE ALERT UNAVAILABLE *1
      • Lane Departure Alert Unavailable *2
      		 Sensor other than forward recognition camera sensor is temporarily disabled Not stored Illuminates (yellow)

      () *1: for Dot LCD Type Multi-information Display*2: for Color Type Multi-information Display

      HINT: 

      Lane Departure Alert Indicator Status 

      • for Color Type Multi-information Display
        Lane Departure Alert Indicator Condition
        Illuminates (yellow) The LDA system is malfunctioning or temporarily disabled
        Blinks (yellow) Lane departure alert function is operating
        Illuminates (green) Lane departure alert steering control function is operating*
        Illuminates (white) Monitoring for lane departure
        Not illuminated Lane departure alert system is not operating

        () *If the lane departure alert steering control function operates while the lane departure alert function is operating, the lane departure alert indicator blinks (yellow).

      • for Dot LCD Type Multi-information Display
        Lane Departure Alert Indicator Condition
        Illuminates (yellow) The LDA system is malfunctioning or temporarily disabled
        Blinks (yellow) Lane departure alert function is operating
        Illuminates (green) Lane departure alert steering control function is operating* / Monitoring for lane departure
        Not illuminated Lane departure alert system is not operating

        () *If the lane departure alert steering control function operates while the lane departure alert function is operating, the lane departure alert indicator blinks (yellow).

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