DYNAMIC RADAR CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips


  • Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Dynamic Radar Cruise Control System
DTC Code Detection Item See page
C1A01 Driving Support ECU

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C1A02 Vehicle Information Not Obtained

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C1A03 Driving Support ECU Internal Logical Error

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C1A05 Stop Light Switch Circuit

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C1A06 Stop Light Switch Input Circuit

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C1A0A Front Radar Sensor Region Code Mismatch

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C1A10 Front Radar Sensor

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C1A11 Front Radar Sensor Incorrect Axial Gap

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C1A14 Front Radar Sensor Beam Axis Not Adjusted

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C1A40 ENG / EHV Device

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C1A41 Brake Request Value Mismatch between ENG / EHV and Driving Support ECU

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C1A4A Skid Control Buzzer Circuit

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C1A4B Stop Light Relay Circuit

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C1A50 Brake System

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U0100 Lost Communication with ECM / PCM "A"

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U0125 Lost Communication with Yaw Rate Sensor Module

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U0126 Lost Communication with Steering Angle Sensor Module

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U0129 Lost Communication with Brake System Control Module

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U0235 Lost Communication with Cruise Control Front Distance Range Sensor

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U1104 Lost Communication with Driving Support ECU

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