Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VIWN
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1442,C1443; Invalid Data Received from Deceleration Sensor; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

C1442

Invalid Data Received from Deceleration Sensor

DTC

C1443

Invalid Data Received from Yaw Rate Sensor

DESCRIPTION

  • The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor via the CAN communication system (w/ VDIM).
  • The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system (w/o VDIM).

The yaw rate sensor has a built-in acceleration sensor and detects the vehicle condition.

DTC Code

DTC Detection Condition

Trouble Area

C1442

With terminal IG1 voltage between 9.5 and 17.4 V, an invalid data signal is received from the acceleration sensor for 10 seconds or more.

  • Yaw rate and acceleration sensor (w/ VDIM)
  • Yaw rate and acceleration sensor (airbag sensor assembly) (w/o VDIM)

C1443

With terminal IG1 voltage between 9.5 and 17.4 V, an invalid data signal is received from the yaw rate sensor for 10 seconds or more.

  • Yaw rate and acceleration sensor (w/ VDIM)
  • Yaw rate and acceleration sensor (airbag sensor assembly) (w/o VDIM)

CAUTION / NOTICE / HINT

NOTICE:

When replacing the brake actuator assembly or yaw rate and acceleration sensor, perform zero point calibration and store system information (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION ).

PROCEDURE

1.

CHECK DTC

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

(b) Start and idle the engine for 60 seconds, and then stop the engine.

(c) Check if the same DTC is recorded (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR ).

Result

Result

Proceed to

DTCs (C1442 and/or C1443) are output (w/ VDIM)

A

DTCs (C1442 and/or C1443) are output (w/o VDIM)

B

DTCs (C1442 and C1443) are not output

C

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (See page 2016 MY Sienna [12/2015 - 08/2016]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE ).

A

REPLACE YAW RATE AND ACCELERATION SENSOR

B

REPLACE AIRBAG SENSOR ASSEMBLY

C

USE SIMULATION METHOD TO CHECK

(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 )