RM38T0EC _95 ADAS / AD _112293 ADVANCED DRIVER ASSISTANCE SYSTEM _0586710 FRONT RADAR SENSOR SYSTEM(Production Date from 2023/04) C

ADVANCED DRIVER ASSISTANCE SYSTEM  FRONT RADAR SENSOR SYSTEM(Production Date from 2023/04)  U010487  Lost Communication with Cruise Control Module Missing Message  


DESCRIPTION

The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication.

If a communication error is detected between the forward recognition camera and millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U010487 Lost Communication with Cruise Control Module Missing Message
Detection condition:

Ignition switch ON


Malfunction status:

Communication malfunction with the forward recognition camera is detected


Malfunction duration:

10 seconds or more


·

Front camera system

·

Harness or connector

·

Forward recognition camera

·

Millimeter wave radar sensor assembly


Front Radar Sensor

HINT:

If the DTCs are output simultaneously, the inspection area can be narrowed down.


Pattern DTC output part name
(Display on GTS) 		Suspected Area (Malfunction Status)
Millimeter Wave Radar Sensor Assembly Forward Recognition Camera
Front Radar Sensor Front Recognition Camera
U010487 U023587

○: DTC is output

-: DTC is not output

Pattern 1 ○ ○ Harness or connector (Open or short)
Millimeter wave radar sensor assembly (Internal malfunction)
Forward recognition camera (Internal malfunction)
Pattern 2 ○ - Millimeter wave radar sensor assembly (Internal malfunction)
Forward recognition camera (Internal malfunction)

WIRING DIAGRAM

B660522E20
4.667,1.667 5.208,1.906 0.542,0.24 10 false T37 4.667,1.844 6.844,2.094 2.177,0.25 10 false Forward Recognition Camera 0.833,1.667 1.385,1.865 0.552,0.198 10 false A181 0.823,1.833 4.802,2.031 3.979,0.198 10 false Millimeter Wave Radar Sensor Assembly 1.583,0.76 2.198,1.667 0.615,0.906 10 false CA1P 4.823,0.76 5.375,0.958 0.552,0.198 10 false 12 5.156,0.76 5.708,0.958 0.552,0.198 10 false CANH 5.135,1.427 5.833,1.833 0.698,0.406 10 false CANL 4.833,1.229 5.385,1.427 0.552,0.198 10 false 11 2.083,1.229 2.635,1.427 0.552,0.198 10 false 7 1.583,1.417 2.135,1.615 0.552,0.198 10 false CA1N 2.083,0.75 2.635,0.948 0.552,0.198 10 false 8



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 and a DTC may be stored.

·

When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly beam axis alignment and to clear the vehicle control history. Before performing the Driving Adjustment, make sure to read Before Starting Driving Adjustment.

HINT:

Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.

Triangle Target: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>MILLIMETER WAVE RADAR SENSOR (Production Date from 2023/04)>TARGET ADJUSTMENT(TRIANGLE TARGET)

Flat Surface Target: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>MILLIMETER WAVE RADAR SENSOR (Production Date from 2023/04)>TARGET ADJUSTMENT(FLAT SURFACE TARGET)

Driving Adjustment: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>MILLIMETER WAVE RADAR SENSOR (Production Date from 2023/04)>DRIVING 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 and a DTC may be stored.

·

When the forward recognition camera has been replaced with a new one, make sure to clear all stored vehicle control history of each system and the forward recognition camera beam axis alignment data.

HINT:

Forward recognition camera beam axis alignment can be performed by using "One Time Recognition", "Driving Adjustment" or "Camera Axis Adjustment Value Write".

One Time Recognition: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>FRONT CAMERA (Production Date from 2023/04)>TARGET ADJUSTMENT(ONE TIME RECOGNITION)

Driving Adjustment: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>FRONT CAMERA (Production Date from 2023/04)>DRIVING ADJUSTMENT

Camera Axis Adjustment Value Write: Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>FRONT CAMERA (Production Date from 2023/04)>CAMERA AXIS ADJUSTMENT VALUE WRITE


·

If the forward recognition camera has been replaced with a new one, make sure to perform Software Version Confirmation.

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>UTILITY (Production Date from 2023/04)>SOFTWARE VERSION CONFIRMATION

·

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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

HINT:

When disconnecting and reconnecting the auxiliary 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 FOR DTCs
a.

Read each DTC and check the diagnosis pattern using the table below.

Chassis > Front Recognition Camera > Trouble Codes
50001 498
Body Electrical > Front Radar Sensor > Trouble Codes
50001 429
Pattern DTC output part name
(Display on GTS)
Front Radar Sensor Front Recognition Camera
Pattern 1 U010487 U023587
Pattern 2 U010487 -


Result:
Result Proceed to
Pattern 1 A
Pattern 2 B



A

GO TO FRONT CAMERA SYSTEM

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>FRONT CAMERA SYSTEM (Production Date from 2023/04)>U023587


B

2.CHECK CONNECTION OF CONNECTORS
2.CHECK CONNECTION OF CONNECTORS
a.

Check that the connectors are properly connected to the forward recognition camera and millimeter wave radar sensor assembly.

OK:

The connectors are properly connected


Result:
Proceed to
OK
NG




OK

3.CLEAR DTC

NG

REPAIR OR REPLACE CAN BUS HARNESS OR CONNECTOR

3.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Front Radar Sensor > Clear DTCs
50002 429

Result:
Proceed to
NEXT



NEXT

4.CHECK FOR DTCs
4.CHECK FOR DTCs
a.

Turn the ignition switch off.


b.

Turn the ignition switch to ON.


c.

Make sure that the DTC detection conditions are met.

HINT:

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



d.

Check for DTCs.

Body Electrical > Front Radar Sensor > Trouble Codes
50001 429

Result:
Result Proceed to
U010487 is not output A
U010487 is output B



A

END

B

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

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


b.

Disconnect the A181 millimeter wave radar sensor assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A181-8 (CA1P) - A181-7 (CA1N) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω


Result:
Proceed to
OK
NG




OK

6.CHECK FORWARD RECOGNITION CAMERA

NG

REPAIR OR REPLACE CAN BUS HARNESS OR CONNECTOR

6.CHECK FORWARD RECOGNITION CAMERA
a.

Disconnect the A181 millimeter wave radar sensor assembly connector.


b.

Using an oscilloscope, check the waveform.

OK:
Tester Connection Condition Tool Setting Specified Condition
A181-8 (CA1P) - A181-7 (CA1N) Ignition switch ON 1V/DIV., 100μs./DIV. Pulse generation



Result:
Proceed to
OK
NG



OK

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>MILLIMETER WAVE RADAR SENSOR (Production Date from 2023/04)>REMOVAL


NG

REPLACE FORWARD RECOGNITION CAMERA

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>FRONT CAMERA (Production Date from 2023/04)>REMOVAL