DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor [08/2017 - 08/2019]: Procedure

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2017 - 08/2019]

   Result

   Result	Proceed to
   Vehicle stability control system DTCs are not output	A
   Vehicle stability control system DTCs are output	B

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - ] 

Result: 

A 

See step  2

HINT: 

When entering Test Mode (Signal Check), the skid control ECU (brake actuator assembly) communicates with the millimeter wave radar sensor assembly to judge whether the vehicle is equipped with the pre-collision system. Therefore, do not exit Test Mode (Signal Check) within 5 seconds of entering Test Mode (Signal Check).

1. Procedure to enter Test Mode
   1. Turn the ignition switch off.
   2. Check that the steering wheel is centered.
   3. Check that the shift lever is in P.
   4. Connect the Techstream to the DLC3.
   5. Turn the ignition switch to ON.
   6. Turn the Techstream on.
   7. Switch the skid control ECU (brake actuator assembly) to Test Mode (Signal Check) using the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Signal Check.

      HINT: 

      Do not exit Test Mode (Signal Check) within 5 seconds of entering Test Mode (Signal Check). If Test Mode (Signal Check) is exited within 5 seconds of entering Test Mode (Signal Check), DTC U0235 may be stored. If DTC U0235 is output after exiting Test Mode (Signal Check), enter Test Mode (Signal Check) again, wait at least 5 seconds, then recheck for DTCs.

   8. Check that the ABS warning and slip indicator lights come on for several seconds and then blink in the Test Mode (Signal Check) pattern.

      HINT: 

      If the ABS warning and slip indicator lights do not blink, inspect the ABS warning and slip indicator light circuits.

2. End Test Mode (Signal Check)
   1. Turn the ignition switch off to exit mode.
   2. Disconnect the Techstream.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [08/2017 - 08/2019]

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2017 - 08/2019]

   Result

   Result	Proceed to
   DTC U0235 is not output	A
   DTC U0235 is output	B

Result: 

A 

END 

Result: 

B 

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  COMPONENTS [08/2017 - ]