Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJTE
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM: C1A47; Steering Angle Sensor; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

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.

If the 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 skid control ECU.

  • Vehicle stability control system
  • Driving support ECU

CAUTION / NOTICE / HINT

HINT:

This circuit uses CAN communication. Therefore, be sure to check that the CAN communication system is normal before performing inspection (See page 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING ).

PROCEDURE

1.

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

(a) Check DTCs for the vehicle stability control system (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR ).

OK:

Vehicle stability control system DTCs are not output.

NG

GO TO VEHICLE STABILITY CONTROL SYSTEM

OK

2.

CHECK FOR DTC (PRE-COLLISION 2 SYSTEM)

(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.

(b) Clear the DTCs (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; PRE-COLLISION: PRE-COLLISION SYSTEM: DTC CHECK / CLEAR ).

(c) Check for DTCs (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; PRE-COLLISION: PRE-COLLISION SYSTEM: DTC CHECK / CLEAR ).

OK:

DTC C1A47 is not output.

OK

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION)

(See page 2016 MY Sienna [12/2015 - 08/2016]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING )

NG

REPLACE DRIVING SUPPORT ECU