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Home >> Lexus >> 2019 >> RX 450h Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC C1A46: Yaw Rate Sensor [08/2018 - 08/2019] >> Description
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DTC C1A46: Yaw Rate Sensor [08/2018 - 08/2019]: Description

The driving support ECU assembly receives yaw rate sensor signals from the yaw rate sensor assembly and skid control ECU assembly via CAN communication. If the driving support ECU assembly receives yaw rate sensor malfunction signals from the yaw rate sensor assembly or skid control ECU assembly, DTC C1A46 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A46 Yaw Rate Sensor
  • While the vehicle is being driven at a speed of 5 km/h (4 mph) or more, the driving support ECU assembly receives a yaw rate sensor malfunction signals from yaw rate sensor for approximately 10 seconds.
  • While the vehicle is being driven at a speed of 5 km/h (4 mph) or more, the driving support ECU assembly receives a yaw rate sensor zero point malfunction signals from skid control ECU assembly for approximately 10 seconds.
  • Electronically controlled brake system
  • Yaw rate sensor assembly
  • Skid control ECU assembly
  • Driving support ECU assembly