Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000012V4M
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 - 10/2020]
Title: CRUISE CONTROL: FORWARD RECOGNITION CAMERA SYSTEM: U0235; Lost Communication with Cruise Control Front Distance Range Sensor; 2018 - 2020 MY Camry [03/2017 - 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 ignition switch is turned to ON for 3 seconds or more, a communication error between the millimeter wave radar sensor assembly and forward recognition camera is detected for approximately 5 seconds.

  • CAN communication system
  • Millimeter wave radar sensor assembly
  • Forward recognition camera

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 [03/2017 - 10/2020]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)

  • 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 2018 MY Camry [03/2017 - 06/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT 2018 - 2020 MY Camry [06/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here 2018 MY Camry [03/2017 - 06/2017]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION 2018 - 2019 MY Camry [06/2017 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION 2020 MY Camry [09/2019 - 03/2020]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION 2020 - 2024 MY Camry [03/2020 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1.

READ VALUE USING TECHSTREAM (CAN BUS CHECK)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(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

GO TO CAN COMMUNICATION SYSTEM

A

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

GO TO PRE-COLLISION SYSTEM

A

3.

CHECK CAN BUS LINE

(a) Turn the ignition switch off.

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

(c) Disconnect the V6 forward recognition camera connector.

*a

Front view of wire harness connector

(to Forward Recognition Camera)

(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 (-) 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)

OK

4.

CHECK POWER SOURCE CIRCUIT (MILLIMETER WAVE RADAR SENSOR ASSEMBLY)

(a) Disconnect the A30 millimeter wave radar sensor assembly connector.

*a

Front view of wire harness connector

(to Millimeter Wave Radar Sensor Assembly)

(b) Turn the ignition switch to ON.

(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

Ignition switch ON

11 to 14 V

(d) Turn the ignition 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)

OK

5.

CHECK POWER SOURCE CIRCUIT (FORWARD RECOGNITION CAMERA)

(a) Disconnect the V6 forward recognition camera connector.

*a

Front view of wire harness connector

(to Forward Recognition Camera)

(b) Turn the ignition switch to ON.

(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

Ignition switch ON

11 to 14 V

(d) Turn the ignition 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)

OK

6.

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

(a) Replace the millimeter wave radar sensor assembly.

Click here 2018 - 2020 MY Camry [03/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: REMOVAL

(b) Adjust the millimeter wave radar sensor assembly.

Click here 2018 MY Camry [03/2017 - 06/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT 2018 - 2020 MY Camry [06/2017 - 10/2020]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT

NEXT

7.

CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)

(a) Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

(b) Perform the following procedure.

HINT:

If the following procedure is not performed, the previously output DTC cannot be detected.

  1. Turn the ignition switch to ON and wait 8 seconds or more.

(c) Check for DTCs.

Chassis > Front Recognition Camera > 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

REPLACE FORWARD RECOGNITION CAMERA