PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: U0100-U0142,U0155; Lost Communication with ECM / PCM "A"; 2018 - 2020 MY Sienna [11/2017

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM1000000019044
Model Year Start: 2018	Model: Sienna	Prod Date Range: [11/2017 - ]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: U0100-U0142,U0155; Lost Communication with ECM / PCM "A"; 2018 - 2020 MY Sienna [11/2017 - ]

DTC

U0100

Lost Communication with ECM / PCM "A"

DTC

U0101

Lost Communication with TCM

DTC

U0142

Lost Communication with Body Control Module "B"

DTC

U0155

Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)

DESCRIPTION

When the clearance warning ECU self-diagnosis determines that the CAN communication system is malfunctioning, this DTC is stored.

DTC Code	DTC Detection Condition	Trouble Area
U0100	Lost Communication with ECM / PCM "A"	CAN communication system
U0101	Lost Communication with TCM	CAN communication system
U0142	Lost Communication with Body Control Module "B"	CAN communication system
U0155	Lost communication with the Instrument Panel Cluster (IPC) control module.	CAN communication system

HINT:

When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

Result	Proceed to
DTC U0100, U0101, U0142 or U0155 are output	A
No DTC is output	B