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Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Except Plug-In) (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC C1A47: Steering Angle Sensor >> Description
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DTC C1A47: Steering Angle Sensor: Description

The brake booster with master cylinder (skid control ECU) receives steering rotation angle information from the steering angle sensor, and sends the information to the driving support ECU through the CAN communication line.

If the brake booster with master cylinder (skid control ECU) detects a malfunction of the steering angle sensor, it sends a malfunction signal to the driving support ECU and records a DTC.

DTC No. DTC Detection Condition Trouble Area
C1A47 When the vehicle speed is 50 km/h (30 mph) or more, a steering angle sensor malfunction signal is received from the brake booster with master cylinder (skid control ECU).
  • Steering angle sensor
  • Brake booster with master cylinder (skid control ECU)
  • CAN communication system
  • Power management control ECU
  • Driving support ECU
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