Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VKI2
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: LIGHTING (EXT): LIGHTING SYSTEM: U0101,U0126,U0129,U0142,U0182; Lost Communication with ECM; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

U0101

Lost Communication with ECM

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0129

Lost Communication with Skid Control ECU

DTC

U0142

Lost Communication with Main Body ECU

DTC

U0182

Lost Communication with AFS ECU

DESCRIPTION

The DTCs are stored when the CAN communication system is malfunctioning.

DTC No.

DTC Detection Condition

Trouble Area

U0101

Lost communication with ECM

CAN communication system

U0126

Lost communication with steering angle sensor

CAN communication system

U0129

Lost communication with skid control ECU

CAN communication system

U0142

Lost communication with main body ECU

CAN communication system

U0182

Lost communication with AFS ECU (headlight swivel ECU assembly)

CAN communication system

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs (See page 2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (EXT): LIGHTING SYSTEM: DTC CHECK / CLEAR ).

(b) Check for DTCs (See page 2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (EXT): LIGHTING SYSTEM: DTC CHECK / CLEAR ).

OK:

DTCs are not output.

OK

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 )

NG

GO TO CAN COMMUNICATION SYSTEM

(See page 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART )