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
Body Electrical > Pre-Collision 2 > Clear DTCs(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
Body Electrical > Pre-Collision 2 > Trouble Codes
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 > Pre-collision System: System Description
SYSTEM DESCRIPTION
PRE-COLLISION SYSTEM DESCRIPTION
(a) The pre-collision system uses the pre-collision alarm control, pre-collision
brake assist control and pre-collision brake control to help avoid a collision or
reduce the impact if it determines that the possibility of a collision is high ...
Toyota CH-R Service Manual > Rear Brake(for Tmc Made): Reassembly
REASSEMBLY
PROCEDURE
1. TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG
(a) Temporarily install the rear disc brake bleeder plug to the rear disc brake
cylinder assembly.
HINT:
Fully tighten the rear disc brake bleeder plug after bleeding the system.
2. INSTALL REAR DISC BRAKE BLEEDER PLUG ...