RM35X0E _59 Vehicle Exterior _079256 LIGHTING (EXT) _0396321 LIGHTING SYSTEM(w/ Headlight ECU) C

LIGHTING (EXT)  LIGHTING SYSTEM(w/ Headlight ECU)  U023587  Lost Communication with Cruise Control Front Distance Range Sensor Missing Message  


DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
U023587 Lost Communication with Cruise Control Front Distance Range Sensor Missing Message
Detection condition:

The engine switch is on (IG)


Malfunction status:

A communication malfunction with the millimeter wave radar sensor assembly is detected


Malfunction duration:

5 seconds or more


·

Local bus (Open or short)

·

Forward recognition camera

·

Millimeter wave radar sensor assembly


Front Recognition Camera (Front Lighting Control) w/ Automatic High Beam System

Pattern DTC output part name
(Display on GTS) 		Suspected Area (Malfunction Status)
Forward Recognition Camera
(Front Recognition Camera(Front Light Control))
U023587

○: DTC is output

-: DTC is not output

Pattern 1 ○ Local bus (Open or short)
Millimeter wave radar sensor assembly (Internal malfunction)
Forward recognition camera (Internal malfunction)

WIRING DIAGRAM

E384731E15
5.677,0.792 6.292,0.99 0.615,0.198 10 false CANH 5.677,1.448 6.292,1.646 0.615,0.198 10 false CANL 5.427,1.25 6.042,1.448 0.615,0.198 10 false 12 5.458,0.771 6.073,0.969 0.615,0.198 10 false 6 1.229,0.781 1.844,0.979 0.615,0.198 10 false CA1P 1.198,1.438 1.813,1.635 0.615,0.198 10 false CA1N 1.667,1.24 2.281,1.438 0.615,0.198 10 false 6 1.677,0.792 2.292,0.99 0.615,0.198 10 false 5 5.25,1.719 7.146,2.292 1.896,0.573 10 false a9 0.625,1.865 3.125,2.375 2.5,0.51 10 false Millimeter Wave Radar Sensor Assembly 0.615,1.708 2.51,2.281 1.896,0.573 10 false A3 5.26,1.875 7.042,2.229 1.781,0.354 10 false Forward Recognition Camera

CAUTION / NOTICE / HINT

NOTICE:
·

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.

·

If the millimeter wave radar sensor assembly has been replaced with a new one, adjustment of the radar sensor beam axis must be performed.

Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>ADJUSTMENT

·

When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

·

If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.

for sequential recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>ADJUSTMENT (SEQUENTIAL RECOGNITION)

for one time recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>ADJUSTMENT (ONE TIME RECOGNITION)

·

After the engine switch is turned off, there may be waiting time before disconnecting the cable from the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the battery

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART




PROCEDURE

1.CHECK CAN BUS WIRE (FORWARD RECOGNITION CAMERA MAIN WIRE)
a.

Disconnect the cable from the negative (-) battery terminal.


b.

Disconnect the a9 forward recognition camera connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
a9-6 (CANH) - a9-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
a9-6 (CANH) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
a9-12 (CANL) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
a9-6 (CANH) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
a9-12 (CANL) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher



Result:
Proceed to
OK
NG



OK

2.CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY

NG

5.CHECK CAN BUS WIRE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY MAIN WIRE)
2.CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY
a.

Temporarily replace the millimeter wave radar sensor assembly with a new one.

Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>REMOVAL


Result:
Proceed to
NEXT



NEXT

3.CLEAR DTC
3.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Clear DTCs.


e.

Clear the DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs
50002 433

Result:
Proceed to
NEXT



NEXT

4.CHECK FOR DTC
4.CHECK FOR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Wait 5 seconds or more.


d.

Turn the GTS on.


e.

Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.


f.

Check for DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes
50001 433
OK:

DTC U023587 is not output.



Result:
Proceed to
OK
NG



OK

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY IS DEFECTIVE)

NG

REPLACE FORWARD RECOGNITION CAMERA

Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>REMOVAL


5.CHECK CAN BUS WIRE (MILLIMETER WAVE RADAR SENSOR ASSEMBLY MAIN WIRE)
a.

Disconnect the A3 millimeter wave radar sensor assembly connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A3-5 (CA1P) - A3-6 (CA1N) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
A3-5 (CA1P) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
A3-6 (CA1N) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
A3-5 (CA1P) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
A3-6 (CA1N) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY

NG

REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR

6.CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY
a.

Temporarily replace the millimeter wave radar sensor assembly with a new one.

Click hereEngine / Hybrid System>CRUISE CONTROL>MILLIMETER WAVE RADAR SENSOR>REMOVAL


Result:
Proceed to
NEXT



NEXT

7.CLEAR DTC
7.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Clear DTCs.


e.

Clear the DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs
50002 433

Result:
Proceed to
NEXT



NEXT

8.CHECK FOR DTC
8.CHECK FOR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Wait 5 seconds or more.


d.

Turn the GTS on.


e.

Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.


f.

Check for DTCs.

Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes
50001 433
OK:

DTC U023587 is not output.



Result:
Proceed to
OK
NG



OK

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY IS DEFECTIVE)

NG

REPLACE FORWARD RECOGNITION CAMERA

Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>REMOVAL