FUNCTION DESCRIPTION
- Lane Departure Warning (LDW) system provides a lane departure warning function when the vehicle is driven at speeds of approximately 70 km/h (45 MPH) or more.
- When the vehicle approaches either the left or the right side of the traveling lane, a warning will sound and the lane departure warning lamp (yellow) on the combination meter will blink to alert the driver.
- The warning does not occur during turn signal operation (Lane change side).
- The warning function will stop when the vehicle returns inside of the lane markers.
EXAMPLE
Scheme 5
When the vehicle approaches the right lane marker, the driver is alerted by the buzzer and the blinking of lane departure warning lamp (yellow).
OPERATION DESCRIPTION
- When the system is turned ON by operating the warning systems switch, camera control unit turns ON the LDW ON indicator lamp and the warning systems ON indicator.
- Rear view camera monitors the traveling lane. It transmits the camera image signal to camera control unit.
- When judging from a camera image signal that the vehicle is approaching the lane marker, the camera control unit controls the following item to alert the driver. Activates warning buzzer in the combination meter. Camera control unit transmits a lane departure warning lamp signal to combination meter via CAN communication and turns ON/OFF the lane departure warning lamp (yellow).
REAR VIEW CAMERA WASHER OPERATION
- When judging that the rear view camera has water droplets, the camera control unit transmits a rear view camera washer activation signal or rear view camera air blow signal to the pump control unit via serial communication.
- When receiving a rear view camera washer activation signal, the pump control unit simultaneously activates the washer pump to clean the rear view camera by spraying washer fluid from the nozzle installed to the rear view camera bracket.
- The washer switching solenoid valve switches the washer path from rear window to rear view camera.
- When receiving a rear view camera air blow signal, the pump control unit activates the air pump to clean the rear view camera by blowing air from the nozzle installed to the rear view camera bracket.
OPERATION CONDITION
- Approximately 30 km/h (20 MPH) or more
- When the camera control unit judges that the rear view camera has water droplets.
- When the front washer and the rear washer are not activated.
- When the low washer fluid warning is OFF.
Note. The camera is cleaned intermittently by spraying washer fluid and blowing air. When the camera control unit judges that dirt on the camera cannot be removed even after approximately 5 minutes from the first detection of dirt, the activation of LDW is canceled.
Fail-Safe
| DTC | Display contents of CONSULT | Malfunction detection condition Fail-safe condition |
|---|---|---|
| C1A03 VHCL SPEED SE CIRC | If the vehicle speed signal (wheel speed) from ABS actuator and electric unit (control unit) received by the camera control unit via CAN communication, are inconsistent | LDW system is cancel BSW system is cancel |
| C1A04 ABS/TCS/VDC CIRC | If a malfunction occurs in the VDC/TCS/ABS system | LDW system is cancel BSW system is cancel |
| C1A39 STRG SEN CIR | If the steering angle sensor is malfunction | LDW system is cancel BSW system is cancel |
| U0122 VDC P-RUN DIAGNOSIS | If camera control unit detects an error signal that is received from ABS actuator and electric unit (control unit) via CAN communication | LDW system is cancel BSW system is cancel |
| U0416 VDC CHECKSUM DIAGNOSIS | If camera control unit detects an error signal that is received from ABS actuator and electric unit (control unit) via CAN communication | LDW system is cancel BSW system is cancel |
| U0428 ST ANGLE SENSOR CALIBRATION | Neutral position adjustment of steering angle sensor is not complete. | Predicted course line is not displayed. MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. |
| U1000 CAN COMM CIRCUIT | When camera control unit cannot transmit/receive CAN communication signal continuously for 2 seconds or more. | The following functions are stopped When communication of steering angle sensor signal is not normal Predicted course line is not displayed. MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. Front tire angle display is stopped. Using "SETTING" menu display, switch each indicator of predicted course line display and MOD switch to "OFF" (turn OFF) so that switch operation cannot be performed. When communication of vehicle signal, wheel speed sensor signal, and shift signal is not normal Predicted course line is not displayed. MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. Using "SETTING" menu display, switch each indicator of predicted course line display and MOD switch to "OFF" (turn OFF) so that switch operation cannot be performed When communication of sonar signal is not normal Predicted course line is not displayed. |
| U1010 CONTROL UNIT (CAN) | CAN initial diagnosis malfunction is detected. | MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. |
| U111A REAR CAMERA IMAGE SIGNAL | No-signal status of rear camera image signal is continued for 500 ms or more while ignition switch is ON. NOTE: Current malfunction is displayed only and is not saved. | Camera image is not displayed (Gray screen display). LDW system is stopped. BSW system is stopped. |
| U1232 ST ANGLE SEN CALIB | Neutral position adjustment of steering angle sensor is performed. NG signal from steering angle sensor is received. | Predicted course line is not displayed. MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. Tire icon is stopped. Using "SETTING" menu display, switch each indicator of predicted course line display and MOD switch to "OFF" (turn OFF) so that switch operation cannot be performed. |
| U1305 CONFIG UNFINISH | The vehicle setting of camera control unit is incomplete. NOTE: Current malfunction is displayed only and is not saved. | Operation is according to the vehicle setting value as default value. |
| U1308 R-CAMERA (R&L) CALIB JDGMNT | Camera image calibration is incomplete | MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. |
| U1309 PUMP INPUT CURRENT JUDGE | Camera control unit detects the value of current from pump control unit is incorrect | MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. |
| U130B RR CAMERA COMM ERROR | Camera control unit receives the incorrect communication signal from rear view camera | MOD (Moving Object Detection) function is stopped. LDW system is stopped. BSW system is stopped. |
| U1310 PUMP ECU JUDGE | If the pump control unit is malfunction | LDW system is stopped. BSW system is stopped. |
| Other | When camera control unit is not normal. | Switch to camera screen is not allowed. |
| When communication between camera control unit and each camera is not normal. | On applicable camera screen marking (Red) is displayed. | |
| When communication line between camera control unit and each camera image line are affected by electromagnetic noises. | On applicable camera image screen, display (Blue) is displayed. |
| NOTE |
|---|
| Current malfunction is displayed only and is not saved. |
| NOTE |
|---|
| Current malfunction is displayed only and is not saved. |
Scheme 6
| No. | Switch name | Description |
|---|---|---|
| (1) | Warning systems switch | Turns LDW system ON/OFF (When the setting of LDW system on the navigation system screen is ON) |
| (2) | LDW system setting screen (Navigation system setting screen) | Turns setting of LDW system can be switched between ON and OFF |
Scheme 7
| No. | Display item | Description |
|---|---|---|
| (1) | Warning systems ON indicator | Indicates that the LDW and/or BSW system is ON |
| (2) | Lane departure warning lamp (Yellow) | Blinks when LDW system is warning to driver Turns ON when LDW system has a malfunction |
| LDW ON indicator lamp (Green) | Turns ON when LDW system is activated Blinks when the back door is open Blinks when the washer fluid level is low |
ECU IDENTIFICATION
Camera control unit part number can be identified.
Description
- Perform action test to verify the customer's concern.
- Perform action test and check the system operation after system diagnosis.
| WARNING | Be careful of traffic conditions and safety around the vehicle when performing road test. |
| CAUTION | Fully understand the following items well before the road test; Precautions: Refer to " FOR USA AND CANADA: PRECAUTION FOR LDW SYSTEM SERVICE ". System description for LDW: Refer to " SYSTEM DESCRIPTION ". Handling precaution: Refer to " PRECAUTIONS FOR LANE DEPARTURE WARNING ". |
- Always perform the camera control unit configuration after replacing the camera control unit.
- Always perform the rear view camera calibration after removing and installing or replacing the rear view camera.
- Always perform the rear view camera calibration after replacing the camera control unit.
| CAUTION | The system does not operate normally unless the rear view camera calibration is performed. Always perform it. |
- Since vehicle specifications are not included in the camera control unit after replacement, it is required to write vehicle specifications with CONSULT.
- Configuration has three functions as follows.
| Function | Description | |
|---|---|---|
| Read/Write Configuration | Before Replace ECU | Allows the reading of vehicle specification written in camera control unit to store the specification in CONSULT. |
| After Replace ECU | Allows the writing of the vehicle information stored in CONSULT into the camera control unit. | |
| Manual Configuration | Allows the writing of the vehicle specification into the camera control unit by hand. | |
- Always perform the rear view camera calibration after removing and installing or replacing the rear view camera.
- Always perform the rear view camera calibration after replacing the camera control unit.
| CAUTION | Place the vehicle on level ground when the calibration is operated. Follow the CONSULT when performing the calibration. (Rear view camera calibration cannot be operated without CONSULT.) |
Scheme 8
Scheme 9
- PERFORM SELF-DIAGNOSIS Perform self-diagnosis of the camera control unit with CONSULT (AVM). Is any DTC detected? Except "U1308": Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to " «DTC INDEX»(ref-594009-S13543684572014012200000) ". "U1308" or no DTC: GO TO 2.
- PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION Perform pre-inspection for diagnosis. Refer to " «INSPECTION PROCEDURE»(ref-594009-S05282394412014012200000) ". Adjust the tire pressure to the specified pressure value. Maintain no-load in vehicle. Check if coolant and engine oil are filled up to correct level and fuel tank is full. Shift the selector lever to "P" position and release the parking brake. Clean the rear view camera. : GO TO 3.
- PREPARATION OF CALIBRATION TARGET MARK Prepare six sheets of white paper and black paper, respectively, with dimensions of 200 mm (7.87 in) x 200 mm (7.87 in) to create a left target, right target, and center target. NOTE: Correct the magnification of print and print the target mark sample in the service information on the black paper. Refer to " «WORK PROCEDURE (TARGET MARK SAMPLE)»(ref-594009-S36636933962014012200000) ". Tape two sheets of black paper and two sheets of white paper together to make a target of 400 mm (15.75 in) x 400 mm (15.75 in). NOTE: Use a transparent tape. Create two more targets according to step 2 . Side of the square target: 400 mm (15.75 in) Side of the black or white area: 200 mm (7.87 in) : Go to " «WORK PROCEDURE (TARGET SETTING)»(ref-594009-S11295885082014012200000) ".
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independently). In CAN communication, control units are connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to " CAN COMMUNICATION SIGNAL CHART ".
CAN controller controls the communication of CAN communication signal and the error detection.
The lane departure warning lamp in the combination meter does not turn ON when turning on the ignition switch
The LDW ON indicator lamp in the combination meter does not turn ON when turning on the ignition switch
The warning of Lane Departure Warning (LDW) is activated during the use of a turn signal.
Note. For the operational conditions of Lane Departure Warning (LDW), refer to " SYSTEM DESCRIPTION ".
- LDW system setting is not selectable on the navigation screen. NOTE: When the ignition switch is in ACC position, LDW system settings cannot be changed. "Lane Departure Warning" is not indicated on the navigation screen. The switching between ON and OFF cannot be performed by operating the navigation system. The item of "Lane Departure Warning" on the navigation screen is not active.
- After turning ON the ignition switch or starting the engine, LDW settings of the navigation system cannot be selected for several tens of seconds under the following conditions: After replacing AV control unit. After erasing connection history of the navigation system. After erasing self-diagnosis results of AV control unit.
- The LDW system setting differs from the one set at the previous driving. NOTE: Turn OFF the ignition switch and wait for 5 seconds or more.