DESCRIPTION The driving
support ECU assembly uses the millimeter wave radar sensor assembly to
detect objects in front of the vehicle. Based on signals from the
millimeter wave radar sensor assembly, the driving support ECU assembly
sends pre-collision system control operation signals. These DTCs are
stored when a communication malfunction occurs between ECUs that perform
pre-collision system control. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area | |
U0125 | Lost Communication with Yaw Rate Sensor Module |
When
the power switch is on (IG), a communication error between the yaw rate
sensor (airbag ECU assembly) and the driving support ECU assembly is
detected for approximately 1 second. |
CAN communication system | |
U0126 | Lost Communication with Steering Angle Sensor Module |
When
the power switch is on (IG), a communication error between the steering
sensor and the driving support ECU assembly is detected for
approximately 4 seconds. | CAN communication system | |
U0129 | Lost Communication with Brake System Control Module |
When
the power switch is on (IG), a communication error between the skid
control ECU (brake booster with master cylinder assembly) and the
driving support ECU assembly is detected for approximately 3 seconds. |
CAN communication system | |
U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module |
When
the power switch is on (IG), a communication error between the
combination meter assembly and the driving support ECU assembly is
detected for approximately 3 seconds. |
CAN communication system | |
U0293 | Lost Communication with HV ECU |
When
the vehicle is being driven at a speed of 5 km/h (4 mph) or more, a
communication error between the hybrid vehicle control ECU and the
driving support ECU assembly is detected for approximately 5 seconds. |
CAN communication system | PROCEDURE
(a) Clear the DTCs. 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. Body Electrical > Pre-Collision 2 > Trouble Codes
|
Result | Proceed to | |
DTC U0125, U0126, U0129, U0155 and U0293 are not output |
A | | DTC U0125, U0126, U0129, U0155 or U0293 is output |
B |
| A |
 | USE SIMULATION METHOD TO CHECK |
| B |
| GO TO CAN COMMUNICATION SYSTEM | |
