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.Front Left Sensor Malfunction (C1AE1)
DESCRIPTION
The No. 1 ultrasonic sensor (front left sensor) is installed on the front bumper.
The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor
(front left sensor). If the No. 1 ultrasonic sensor (front left sensor) has ...
Starter Signal Circuit
DESCRIPTION
1. w/o Smart Key System
While the engine is being cranked, current flows from terminal ST1 of the ignition
switch assembly to the park/neutral position switch assembly and also flows to terminal
STA of the ECM (STA Signal).
2. w/ Smart Key S ...
Check Mode Procedure
CHECK MODE PROCEDURE
1. CHECK MODE (SIGNAL CHECK): DTC CHECK
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / SRS Ai ...