Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM100000001SH7Y |
Model Year Start: 2021 |
Model: Camry |
Prod Date Range: [10/2020 -
] |
Title: CRUISE CONTROL: FRONT RADAR SENSOR SYSTEM: U010487; Lost Communication with Cruise Control Module Missing Message; 2021 - 2024 MY Camry [10/2020 - ] |
DTC
|
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
|
U010487
|
Lost Communication with Cruise Control Module Missing Message
|
Malfunction status:
-
Communication malfunction with the forward recognition camera is detected
|
-
Pre-collision system
-
Forward recognition camera
-
Millimeter wave radar sensor assembly
|
Pattern
|
DTC output part name
(Display on Techstream)
|
Suspected Area (Malfunction Status)
|
Millimeter Wave Radar Sensor Assembly
|
Forward Recognition Camera
|
Front Radar Sensor
|
Pre-Collision System
|
Lane Control
|
Forward Recognition Camera (Front Lighting Control)
|
Radar Cruise2
|
U010487
|
U023587
|
U023587
|
U023587
|
U023587
|
Pattern 1
|
○
|
○
|
○
|
○
|
○
|
Harness or connector (Open or short)
|
Millimeter wave radar sensor assembly (Internal malfunction)
|
Forward recognition camera (Internal malfunction)
|
Pattern 2
|
○
|
-
|
-
|
-
|
-
|
Forward recognition camera (Internal malfunction)
|
Millimeter wave radar sensor assembly (Internal malfunction)
|
HINT:
If the DTCs are output simultaneously, the inspection area can be narrowed down.
WIRING DIAGRAM
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 here
Flat Surface Target: Click here
Driving Adjustment: Click here
-
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 is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.
HINT:
Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.
One Time Recognition: Click here
Sequential Recognition: Click here
Driving Adjustment: Click here
PROCEDURE
(a) Read each DTC and check the diagnosis pattern using the table below.
Body Electrical > Front Radar Sensor > Trouble Codes
Body Electrical > Pre-Collision System > Trouble Codes
Chassis > Lane Control > Trouble Codes
Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes
Powertrain > Radar Cruise2 > Trouble Codes
Pattern
|
DTC output part name
(Display on Techstream)
|
Front Radar Sensor
|
Pre-Collision System
|
Lane Control
|
Forward Recognition Camera (Front Lighting Control)
|
Radar Cruise2
|
Pattern 1
|
U010487
|
U023587
|
U023587
|
U023587
|
U023587
|
Pattern 2
|
U010487
|
-
|
-
|
-
|
-
|
Result
|
Proceed to
|
Pattern 1
|
A
|
Pattern 2
|
B
|
B
|
|
|
2.
|
CHECK FORWARD RECOGNITION CAMERA
|
*a
|
Front view of wire harness connector
(to Millimeter Wave Radar Sensor Assembly)
|
(a) Disconnect the millimeter wave radar sensor assembly connector.
(b) Using an oscilloscope, check the waveform.
OK:
Tester Connection
|
Condition
|
Tool Setting
|
Specified Condition
|
A30-5 (CA1P) - A30-6 (CA1N)
|
Ignition switch ON
|
1V/DIV., 100μs./DIV.
|
Pulse generation
|
|