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 |
2
seconds after the power switch is turned on (IG), a communication error
between the millimeter wave radar sensor assembly and the forward
recognition camera is detected for approximately 5 seconds. |
- CAN communication system
- CAN bus line
- 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 procedure.
- 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.
- When the millimeter wave radar sensor assembly is replaced with a new
one, adjustment of the radar sensor beam axis must be performed.
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- 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.
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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.
Click here 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 |
 | |
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 | |
| |
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
| (c) Disconnect the O5 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 | |
O5-6 (CANH) - O5-12 (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 O5 forward recognition camera connector.
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (CAN BUS LINE) |
|
OK | |
| |
(a) Check for DTCs. Chassis > Front Recognition Camera > Trouble Codes
|
Result | Proceed to | |
Only DTC U0235 is output |
A | | DTC U0235 and U1104 are output |
B |
| B |
| REPLACE FORWARD RECOGNITION CAMERA |
|
A | |
| |
(a) Check for DTCs.
HINT: The malfunction area can be determined by the combination of DTCs output at the same time. Body Electrical > Pre-Collision 2 > Trouble Codes Chassis > Front Recognition Camera > Trouble Codes
|
Result | Proceed to | |
Front camera system (Front Recognition Camera) DTC U0235 and pre-collision system (Pre-Collision 2) DTC U1104 are output. |
A | | Front camera system (Front Recognition Camera) DTC U0235 and pre-collision system (Pre-Collision 2) DTC U0235 are output. | |
Only front camera system (Front Recognition Camera) DTC U0235 is output. |
B |
| A |
| REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
| B |
| REPLACE FORWARD RECOGNITION CAMERA | | 
