Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018JBU
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: U0100,U0126,U0140,U0163,U1110; Lost Communication with ECM / PCM "A"; 2018 - 2020 MY Sienna [11/2017 -        ]

DTC

U0100

Lost Communication with ECM / PCM "A"

DTC

U0126

Lost Communication with Steering Angle Sensor Module

DTC

U0140

Lost Communication with Body Control Module

DTC

U0163

Lost Communication with Navigation Control Module

DTC

U1110

Lost Communication with Intuitive Parking Assist Module

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera assembly.

HINT:

If CAN communication system DTCs are stored, they may also be stored in other systems.

DTC Code

DTC Detection Condition

Trouble Area

U0100

Lost Communication with ECM

CAN communication system

U0126

Lost communication with spiral cable with sensor sub-assembly

CAN communication system

U0140

Lost communication with main body ECU (multiplex network body ECU)

CAN communication system

U0163

Lost communication with radio and display receiver assembly

CAN communication system

U1110

Lost communication with clearance warning ECU assembly

CAN communication system

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: DTC CHECK / CLEAR

(b) Recheck for DTCs and check that no DTCs are output.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: DTC CHECK / CLEAR

HINT:

  • If CAN communication system DTCs are stored, they may also be stored in other systems.
  • If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
  • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.

    Click here 2018 - 2020 MY Sienna [11/2017 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

Result

Result

Proceed to

DTCs are output

A

No DTCs are output

B

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK