| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000014W7Y |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - 10/2020] |
| Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM (w/ Steering Control): U0235; Lost Communication with Cruise Control Front Distance Range Sensor; 2018 - 2020 MY Camry HV [07/2017 - 10/2020] | ||
|
DTC |
U0235 |
Lost Communication with Cruise Control Front Distance Range Sensor |
DESCRIPTION
The forward recognition camera communicates with the millimeter wave radar sensor assembly via CAN communication. If there is a communication error with the millimeter wave radar sensor assembly, the forward recognition camera stores DTC U0235.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
U0235 |
Lost Communication with Cruise Control Front Distance Range Sensor |
After the power switch is turned on (IG) for 3 seconds or more, when the vehicle is being driven at a speed of 5 km/h (4 mph) or more, a communication error between the millimeter wave radar sensor assembly and forward recognition camera is detected for approximately 5 seconds. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- 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.
Click here
![2018 - 2020 MY Camry HV [07/2017 - 10/2020]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)
- 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, be sure to perform millimeter wave radar sensor assembly adjustment.
Click here
-
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (CAN BUS CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / Can Bus Check.
CAN Bus Check
|
Result |
Proceed to |
|---|---|
|
All of the ECUs and sensors that are currently connected to the CAN communication system are displayed |
A |
|
None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed |
B |
| B |
|
|
|
2. |
CHECK FOR DTCs (CAN COMMUNICATION DTC OUTPUT) |
HINT:
When pre-collision system DTC U1002 is output, check that the local bus is functioning normally by performing the diagnostic procedure for U1002.
(a) Check for DTCs.
Body Electrical > Pre-Collision 2 > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC U1002 is not output |
A |
|
DTC U1002 is output |
B |
| B |
|
|
|
3. |
CHECK CAN BUS LINE |
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
|
(c) Disconnect the V6 forward recognition camera connector. |
|
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V6-6 (CANH) - V6-12 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
HINT:
If the result is not as specified, a malfunction in a CAN communication line is suspected.
(e) Connect the V6 forward recognition camera connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (CAN BUS LINE) |
|
|
4. |
CHECK POWER SOURCE CIRCUIT (MILLIMETER WAVE RADAR SENSOR ASSEMBLY) |
|
(a) Disconnect the A30 millimeter wave radar sensor assembly connector. |
|
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A30-8 (IGB) - Body ground |
Power switch on (IG) |
11 to 14 V |
(d) Turn the power switch off.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A30-1 (SGND) - Body ground |
Always |
Below 1 Ω |
(f) Connect the A30 millimeter wave radar sensor assembly connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
|
5. |
CHECK POWER SOURCE CIRCUIT (FORWARD RECOGNITION CAMERA) |
|
(a) Disconnect the V6 forward recognition camera connector. |
|
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V6-7 (IGB) - Body ground |
Power switch on (IG) |
11 to 14 V |
(d) Turn the power switch off.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V6-10 (GND) - Body ground |
Always |
Below 1 Ω |
(f) Connect the V6 forward recognition camera connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
|
6. |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Replace the millimeter wave radar sensor assembly.
Click here
(b) Adjust the millimeter wave radar sensor assembly.
Click here
|
|
7. |
CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM) |
(a) Clear the DTCs.
Chassis > LKA/LDA > Clear DTCs
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the power switch on (IG) and wait 3 seconds or more.
- Drive the vehicle at a speed of 5 km/h (4 mph) or more for 5 seconds or more.
(c) Check for DTCs.
Chassis > LKA/LDA > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC U0235 is not output |
A |
|
DTC U0235 is output |
B |
| A |
|
END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE) |
| B |
|
|
|