DESCRIPTION
These DTCs are stored when a communication malfunction occurs between ECUs that perform pre-collision control.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
U0100 |
Lost Communication with ECM / PCM "A" |
When driving the vehicle at a speed of 5 km/h (4 mph) or more, a communication error between the ECM and the millimeter wave radar sensor assembly is detected for approximately 5 seconds. |
|
U0125 |
Lost Communication with Yaw Rate Sensor Module |
When driving the vehicle at a speed of 5 km/h (4 mph) or more, a communication error between the yaw rate and acceleration sensor (airbag sensor assembly) and the millimeter wave radar sensor assembly is detected for approximately 1 second. |
|
U0126 |
Lost Communication with Steering Angle Sensor Module |
When the ignition switch is ON, a communication error between the steering angle sensor (spiral cable with sensor sub-assembly) and the millimeter wave radar sensor assembly is detected for approximately 4 seconds. |
|
U0129 |
Lost Communication with Brake System Control Module |
When the ignition switch is ON, a communication error between the skid control ECU (brake actuator assembly) and the millimeter wave radar sensor assembly is detected for approximately 3 seconds. |
|
U023A |
Lost Communication with Front Camera Module |
After the ignition switch is turned ON, a communication malfunction occurs between the millimeter wave radar sensor assembly and forward recognition camera. |
|
PROCEDURE
1. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC U0100, U0125, U126 and U0129 are not output |
A |
DTC U0100, U0125, U126 or U0129 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
Toyota CH-R Service Manual > General Maintenance: Inside Vehicle
INSIDE VEHICLE
These are maintenance and inspection items that are considered to be
the owner's responsibility.
The owner can do them or they can have them done at a service center.
These items include those that should be checked on a daily basis, those
that in most cases ...
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Side-mounted
Air Conditioner Pressure Sensor): Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine Swi ...