PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1A47

DTC Code DTC Name
C1A47 Steering Angle Sensor

DESCRIPTION

The 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.

When DTC C1A47 is detected, DTC C1433 is also stored in the "ABS/VSC/TRC".

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 skid control ECU.

  • Steering angle sensor

  • Skid control ECU

  • Driving support ECU

INSPECTION PROCEDURE

Tech Tips

This circuit uses CAN communication. Therefore, be sure to check that the CAN communication system is normal before performing inspection Click here.

PROCEDURE


  1. CHECK DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check DTCs for vehicle stability control system Click here.

      OK
      DTC C1433 is not output.

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    OK

  2. CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)


    1. Using the intelligent tester, enter the following menus: Body / Pre-Crash 2 / DTC.

    2. Clear the DTCs Click here.

    3. Drive the vehicle.

    4. Recheck for DTCs.

      OK
      DTC C1A47 is not output.

    NG

    REPLACE DRIVING SUPPORT ECU Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) Click here