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Fail-Safe Chart [10/2017 - 05/2018]

WARNING: This page is about a different car, the 2019 Toyota C-HR and 2018 Toyota C-HR. However, it is still accessible from the selected car via links, so may be relevant.
  1. FAIL-SAFE FUNCTION (for LED Headlight) 
    1. Headlight ECU sub-assembly
      1. The headlight ECU sub-assemblies stop light operation if any of the following malfunctions are detected.
        Malfunction Multi-information Display Warning DTC Output
        Lighting on/off LED light source malfunction Low beam Displayed Output
        High beam Not displayed Output
        Fan malfunction Displayed Output
        Other than above (communication with main body ECU (multiplex network body ECU)) Displayed Output
        Automatic headlight beam level control system Displayed Output
        Power supply IG voltage line malfunction Displayed Output
        Other than an IG voltage line malfunction Not displayed Not output
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