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Home >> Toyota >> 2017 >> Corolla SE, Automatic CVT Trans >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostics - Introduction (Model Code: ZRE172) >> Pre-Collision System >> Fail-Safe Chart [08/2016 - 08/2017] >> Fail-Safe Chart [08/2016 - 08/2017]
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Fail-Safe Chart [08/2016 - 08/2017]

  1. FAIL-SAFE FUNCTION 
    1. When a malfunction occurs in the pre-collision system, a message will be displayed on the multi-information display and the pre-collision system will be disabled depending on the malfunction.
      Warning Message Cause DTC No. Conditions to Return to Normal
      • "PRE-COLLISION SYSTEM MALFUNCTION VISIT YOUR DEALER" *1
      • "Pre-Collision System Malfunction Visit Your Dealer" *2
      		 Pre-collision system malfunction C1A01 After system returns to normal, ignition switch is turned off and then ON
      C1A02 System returns to normal
      C1A0A System returns to normal
      C1A10 After system returns to normal, ignition switch is turned off and then ON
      C1A11 After system returns to normal, ignition switch is turned off and then ON
      C1A14 System returns to normal
      C1A46 After system returns to normal, ignition switch is turned off and then ON
      C1A47 After system returns to normal, ignition switch is turned off and then ON
      C1A4A System returns to normal
      C1A4B System returns to normal
      C1A50 System returns to normal
      C1A63 System returns to normal
      C1A64 After system returns to normal, ignition switch is turned off and then ON
      C1AA0 After system returns to normal, ignition switch is turned off and then ON
      C1AA9 After system returns to normal, ignition switch is turned off and then ON
      U0100 System returns to normal
      U0125 System returns to normal
      U0126 System returns to normal
      U0129 System returns to normal
      U0235 System returns to normal
      U023A System returns to normal
      U1002 System returns to normal
      U1104 System returns to normal
      • "PRE-COLLISION SYSTEM UNAVAILABLE" *1
      • "Pre-Collision System Unavailable" *2
      • Millimeter wave radar sensor assembly misaligned
      • Millimeter wave radar sensor assembly temperature malfunction
      • Millimeter wave radar sensor assembly low voltage malfunction
      • Millimeter wave radar sensor assembly beam axis adjustment is completed and beam axis learning is completed
      • Millimeter wave radar sensor assembly temperature returns to normal
      • Millimeter wave radar sensor assembly voltage returns to normal
      • "PRE-COLLISION SYSTEM UNAVAILABLE CLEAN SENSOR" *1
      • "Pre-Collision System Unavailable Clean Sensor" *2
      		 Foreign matter attached to millimeter wave radar sensor assembly Millimeter wave radar sensor assembly is cleaned
      • "FRONT CAMERA UNAVAILABLE" *1
      • "Front Camera System Unavailable" *2
      		 Forward recognition camera temporarily malfunctioning
      • Abnormal forward recognition camera voltage
      • Forward recognition camera temperature outside of operational range
      • Other forward recognition camera malfunction
      • Forward recognition camera temperature returns to normal
      • Forward recognition camera voltage returns to normal
      • Forward recognition camera returns to normal
      • "FRONT CAMERA UNAVAILABLE REMOVE DEBRIS ON WIND SHIELD" *1
      • "Front Camera Unavailable Remove Debris On Windshield" *2
      		 Foreign matter attached to forward recognition camera or area of windshield in front of forward recognition camera Forward recognition camera or area of windshield glass in front of forward recognition camera is cleaned

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

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