DYNAMIC RADAR CRUISE CONTROL SYSTEM(for Mono Camera Type), Diagnostic DTC:U0235

DTC Code DTC Name
U0235 Lost Communication with Cruise Control Front Distance Range Sensor

DESCRIPTION

The driving support ECU assembly sends vehicle speed and vehicle condition information to the millimeter wave radar sensor assembly. The millimeter wave radar sensor assembly then sends information on the presence, distance, and relative speed of objects in front of the vehicle to the driving support ECU assembly. The driving support ECU assembly sends this information to the hybrid vehicle control ECU assembly and the hybrid vehicle control ECU assembly operates the dynamic radar cruise control system.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0235 Lost Communication with Cruise Control Front Distance Range Sensor

w/o Full-speed range following function:


  • While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the millimeter wave radar sensor assembly and the driving support ECU assembly is detected for approximately 1 second.

w/ Full-speed range following function:


  • While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, a communication error between the millimeter wave radar sensor assembly and the driving support ECU assembly is detected for approximately 1 second.

  • CAN communication system

  • Millimeter wave radar sensor assembly

  • Driving support ECU assembly

  • Harness or connector
Pattern

DTC output parts

(Tester Display)

 Trouble Area

Driving support ECU assembly

(Pre-Collision 2)

Forward Recognition Camera

(Front Recognition Camera)
U0235 U0235
Pattern 1 ○ ○ Millimeter wave radar sensor assembly
Pattern 2 ○ - Driving support ECU assembly

○: DTC output

-: DTC not output

WIRING DIAGRAM

B004UR1E02

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • When replacing the driving support ECU assembly, make sure to replace it with a new one. If a device which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle, and as a result, a DTC may be stored.

  • When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle. As a result, a DTC may be stored.

  • When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.

    Click here

PROCEDURE


  1. CHECK FOR DTC (FRONT RECOGNITION CAMERA)


    1. Check for DTCs.


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC U0235 is output B

    A

    REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here

    B

    REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY Click here