DESCRIPTION
The millimeter wave radar sensor assembly is connected to the skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 via CAN communication. If communication with the skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 stops, the millimeter wave radar sensor assembly stores DTC U0235.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
U0235 |
Lost Communication with Cruise Control Front Distance Range Sensor |
When the ignition switch is ON, a communication error between the millimeter wave radar sensor assembly and skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 is detected for approximately 2 seconds. |
|
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. |
CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
Vehicle stability control system DTCs are not output |
A |
Vehicle stability control system DTCs are output |
B |
B | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
2. |
TEST MODE INSPECTION (VEHICLE STABILITY CONTROL SYSTEM) |
HINT:
When entering Test Mode (Signal Check), the skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 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).
(a) 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 (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 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.
(b) End Test Mode (Signal Check)
(1) Turn the ignition switch off to exit mode.
(2) Disconnect the Techstream.
|
3. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
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(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
Result |
Proceed to |
---|---|
DTC U0235 is not output |
A |
DTC U0235 is output |
B |
A | ![]() |
END |
B | ![]() |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
ECU Power Source Circuit
DESCRIPTION
This circuit supplies power to the millimeter wave radar sensor assembly when
the ignition switch is ON.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspection procedure.
PROCEDURE
...
Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. REMOVE FOG LIGHT BULB
(a) Turn the fog light bulb in the direction indicated by the arrow in
the illust ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT SEATBACK HEATER ASSEMBLY
(a) Set the front seatback heater assembly with the name stamp side facing the
front seatback cover.
(b) Install the front seatback heater assembly with 14 new tag pins.
2. INSTALL SEPARATE TYPE FRONT SEATBACK COVER (for Front P ...