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Home >> Toyota >> 2021 >> Sequoia TRD Pro >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A11: Front Radar Sensor Incorrect Axial Gap [08/2017 - 08/2019] >> Description
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DTC C1A11: Front Radar Sensor Incorrect Axial Gap [08/2017 - 08/2019]: Description

When the vehicle is determined to be driving in a straight line or on a gradual curve based on signals from the yaw rate sensor, etc., the millimeter wave radar sensor assembly performs self diagnosis to check if the sensor beam axis has deviated. If the millimeter wave radar sensor assembly beam axis has deviated, the millimeter wave radar sensor assembly detects this and stores DTC C1A11.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A11 Front Radar Sensor Incorrect Axial Gap When the ignition switch is ON, misalignment of the millimeter wave radar sensor assembly is detected for approximately 1 second or more.
  • Millimeter wave radar sensor assembly
  • Wheel alignment