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Home >> Lexus >> 2015 >> NX 300h AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A46: Yaw Rate Sensor [09/2017 - 05/2019] >> Description
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DTC C1A46: Yaw Rate Sensor [09/2017 - 05/2019]: Description

The driving support ECU assembly receives yaw rate sensor (airbag ECU assembly) signals from the yaw rate sensor (airbag ECU assembly) and skid control ECU (brake booster with master cylinder assembly) via CAN communication. If the driving support ECU assembly receives a yaw rate sensor (airbag ECU assembly) malfunction signal from the yaw rate sensor (airbag ECU assembly) or skid control ECU (brake booster with master cylinder assembly), DTC C1A46 will be 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 (airbag ECU assembly) malfunction signal from yaw rate sensor (airbag ECU assembly) 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 (airbag ECU assembly) zero point malfunction signal from skid control ECU (brake booster with master cylinder assembly) for approximately 10 seconds.
  • Electronically controlled brake system
  • Yaw rate sensor (airbag ECU assembly)
  • Skid control ECU (Brake booster with master cylinder assembly)
  • Driving support ECU assembly