Failing to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.


Stop the vehicle immediately.
Follow the correction procedures.Removal
REMOVAL
PROCEDURE
1. REMOVE REAR BUMPER ASSEMBLY
(See page )
2. REMOVE ULTRASONIC SENSOR CLIP
(a) Disconnect the connector.
Text in Illustration
*A
LH Side
*B
...
Clearance Sonar Main Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE LH
2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
3. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL
4. REMOVE CLEARANCE SONAR MAIN SWITCH
...
Lost Communication with ECM (U0101,U0073,U0126,U0129,U0142,U0182,U1000)
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 syst ...