DESCRIPTION
These DTCs are output when a communication malfunction occurs between the sensors and ECUs.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
U0123 |
Lost Communication with Yaw Rate Sensor Module |
3 seconds after the ignition switch is turned to ON, the vehicle is being driven at 5 km/h (3 mph) or more and a communication error between the yaw rate sensor and the forward recognition camera is detected for approximately 5 seconds or more. |
|
U0126 |
Lost Communication With Steering Angle Sensor Module |
3 seconds after the ignition switch is turned to ON, a communication error between the spiral cable with sensor sub-assembly and the forward recognition camera is detected for approximately 5 seconds or more. |
|
U0129 |
Lost Communication with Brake System Control Module |
3 seconds after the ignition switch is turned to ON, a communication error between the skid control ECU (brake actuator assembly) and the forward recognition camera is detected for approximately 5 seconds or more. |
|
U0142 |
Lost Communication with Body Control Module "B" |
3 seconds after the ignition switch is turned to ON, a communication error between the main body ECU (multiplex network body ECU) and the forward recognition camera is detected for approximately 5 seconds or more. |
|
U0155 |
Lost Communication with Combination Meter |
3 seconds after the ignition switch is turned to ON, a communication error between the combination meter assembly and the forward recognition camera is detected for approximately 50 seconds or more. |
|
PROCEDURE
1. |
CHECK FOR DTCs |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
(e) Clear the DTCs.
Click here
(f) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(g) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
(h) Check the DTCs.
Click here
Result |
Proceed to |
---|---|
DTC U0123, U0126, U0129, U0142 and U0155 are not output |
A |
DTC U0123, U0126, U0129, U0142 or U0155 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT CONNECTING ROD THRUST CLEARANCE
(a) Using a dial indicator, measure the thrust clearance while moving
the connecting rod back and forth.
Standard thrust clearance:
0.15 to 0.40 mm (0.00591 to 0.0157 in.)
Maximum thrust clearance:
0.50 ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
*1: for Vacuum Brake Booster
*2: for Hydraulic Brake Booster
Millimeter Wave Radar Sensor Assembly
Forward Recognition Camera
...
Installation
INSTALLATION
PROCEDURE
1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(a) Install a new gasket to the water inlet with thermostat sub-assembly.
(b) Install the water inlet with thermostat sub-assembly to the timing chain
cover assembly with the 2 bolts and nut.
Torque:
10 N·m {102 kgf ...