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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 [10/2014 - 09/2017] >> Description
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DTC C1A46: Yaw Rate Sensor [10/2014 - 09/2017]: Description

The brake booster with master cylinder assembly (skid control ECU) receives electronically controlled brake system signals from the airbag ECU assembly (yaw rate sensor) and sends the signals to the driving support ECU assembly. If the brake booster with master cylinder assembly (skid control ECU) detects that the airbag ECU assembly (yaw rate sensor) is malfunctioning, the brake booster with master cylinder assembly (skid control ECU) sends a malfunction signal to the driving support ECU assembly, and the driving support ECU assembly stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A46 Yaw Rate Sensor While the vehicle speed is 5 km/h (3 mph) or more, an airbag ECU assembly (yaw rate sensor) malfunction signal is received from the brake booster with master cylinder assembly (skid control ECU) for 1 second or more.
  • Electronically controlled brake system
  • Brake booster with master cylinder assembly (skid control ECU)
  • Driving support ECU assembly