Component Description
| Component | Description |
|---|---|
| ITS control unit | Being connected with rear view camera via ITS communication, receives vehicle detection signal and transmits Blind Spot Warning indicator signal and Blind Spot Warning indicator dimmer signal to the rear view camera Being connected with lane camera unit via ITS communication, receives detected lane condition signal Receives steering angle sensor signal from steering angle sensor via CAN communication Judges a Blind Spot Warning indicator ON/OFF state and an approach state to the lane marker, based on each signal. Activates the warning buzzer and warning systems ON indicator Transmits Blind Spot Warning ON indicator signal to combination meter via CAN communication |
| Blind Spot Warning indicator LH/RH | Receives Blind Spot Warning indicator operation signal from rear view camera and turns OFF, turns ON or blinks |
| Warning systems switch | Inputs the switch signal to ITS control unit |
| Warning systems ON indicator (On the warning systems switch) | Indicates BSW system status |
| Rear view camera | Detects the lane marker by the built-in camera Transmits detected lane condition signal to ITS control unit |
| ABS actuator and electric unit (control unit) | Transmits vehicle speed signal to ITS control unit via CAN communication Transmits yaw rate signal/side G sensor signal to ITS control unit via CAN communication |
| Buzzer (combination meter) | Receives buzzer signal from ITS control unit and sounds buzzer. |
| Combination meter | Turns the Blind Spot Warning indicator ON/OFF according to the signals from the ITS control unit via CAN communication Receives Blind Spot Warning ON indicator signal via CAN communication. |
| Steering angle sensor | Transmits steering angle sensor signal to ITS control unit via CAN communication |
| BCM | Transmits turn signal indicator to ITS control unit via CAN communication Transmits dimmer signal to ITS control unit via CAN communication |
| ECM | Transmits engine speed signal to ITS control unit via CAN communication |
| TCM | Transmits the output shaft speed signal, input speed signal, current gear position signal and shift position signal to ITS control unit via CAN communication |
| AV control unit | Receives the various systems and camera signals via CAN communication and routes them to the center display |
| Center display | Displays the various system screen signals according to the priority level received via CAN communication |
| Rear view camera washer control unit | Controls the air pump to drive air to the rear camera lens according to the signals received from the ITS control unit |
| Rear view camera air pump motor | Drives air to the rear camera lens according to the signals received from the pump control unit |
Scheme 63
BSW SYSTEM OPERATION DESCRIPTION
- Control unit enables BSW system.
- The control unit turns on the BSW system when the warning systems switch is turned ON.
- Rear view camera detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to control unit.
- Control unit starts the control as follows, based on a vehicle detection signal, turn signal and dimmer signal transmitted from BCM via CAN communication: Blind Spot Warning indicator signal and Blind Spot Warning indicator dimmer signal transmission to rear view camera. Buzzer signal transmission to warning buzzer.
- Rear view camera transmits an indicator operation signal to the Blind Spot Warning indicator according to Blind Spot Warning indicator signal and Blind Spot Warning indicator dimmer signal.
Operation Condition of BSW System
control unit performs the control when the following conditions are satisfied
- When the warning systems switch is turned ON*.
- When the vehicle drives at 32 km/h (20 MPH) or more in the forward direction. NOTE: *: When the BSW system setting on the vehicle information display screen is ON.
- After the operating conditions of warning are satisfied, the warning continues until the vehicle speed is reduced below approximately 29 km/h (18 MPH)
- The BSW system may not function properly, depending on the situation.
DISPLAY AND WARNING OPERATION
Vehicle condition/Driver's operation Action Warning systems ON indicator Vehicle speed (Approx.) [km/h (MPH)] Turn signal condition Status of vehicle detection within detection area Indication on the Blind Spot Warning indicator Buzzer OFF - - - OFF OFF ON Less than approx. 29km/h (18MPH) - - OFF OFF Approx. 32 km/h (20 MPH) or more - Vehicle is absent OFF OFF OFF Vehicle is detected ON OFF ON (vehicle detected direction) Before turn signal operates Vehicle is detected Vehicle is detected after turn signal operates OFF
Scheme 64
Scheme 65
Note. If vehicle speed exceeds approximately 32 km/h (20 MPH), BSW function operates until the vehicle speed becomes lower than approximately 29 km/h (18 MPH). Time shown in the figure is approximate. Whenever Blind Spot Warning system is turned off, the warning systems ON indicator remains OFF.
ECU IDENTIFICATION
ITS control unit part number is displayed.
DESCRIPTION
In general, each customer feels differently about an incident. It is important to fully understand the symptoms or conditions for a customer complaint.
There are many operating conditions that lead to the malfunction. A good grasp of such conditions can make troubleshooting faster and more accurate.
Some conditions may cause the lane departure warning lamp to stay ON.
Utilize a work sheet sample to organize all of the information for troubleshooting.
KEY POINTS
- WHAT..... System and functions
- WHEN..... Date, Frequencies
- WHERE..... Road conditions
- HOW..... Operating conditions, Symptoms
Scheme 66
- 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 " PRECAUTION FOR LDW SYSTEM SERVICE ". System description for LDW: Refer to " SYSTEM DESCRIPTION ". System description for BSW: Refer to " SYSTEM DESCRIPTION ". System description for MOD: Refer to " SYSTEM DESCRIPTION ". Handling precaution: Refer to " PRECAUTIONS FOR LANE DEPARTURE WARNING ". |
Always perform the calibration after removing and installing or replacing the rear view camera.
| CAUTION | The system does not operate normally unless the rear view camera aiming adjustment is performed. Always perform it. |
Always perform the calibration after removing and installing or replacing the rear view camera.
| CAUTION | Place the vehicle on level ground when the calibration is performed. Follow the CONSULT when performing the calibration. (Rear view camera calibration cannot be operated without CONSULT). |
Scheme 67
- PERFORM SELF-DIAGNOSIS Perform self-diagnosis of the ITS control unit. Is any DTC detected? Except "U1308" >> Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to " «DTC INDEX»(ref-576065-S16768496962013090900000) ". "U1308" or no DTC >> GO TO 2.
- PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION NOTE: Select the "AVM" to diagnose the ITS control unit by CONSULT. Perform pre-inspection for diagnosis. Refer to " «INSPECTION PROCEDURE»(ref-576067-S10727478072013090900000) ". 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. Situate vehicle where the camera is exposed at an atmosphere temperature between 0°C (32°F) and 30°C (86°F) Move the shift selector to P (Park) and release the parking brake. Clean the rear view camera. >> GO TO 3.
- PREPARATION OF CALIBRATION TARGET MARK Prepare the calibration target mark according to the following figure: Left and right targets Center target Side of the black or white area = 200 mm (7.87 in) Side of the square target = 400 mm (15.75 in) >> Refer to " «WORK PROCEDURE (TARGET SETTING)»(ref-576067-S00166081642013090900000) ".
CAN controller controls the communication of CAN communication signal and ITS communication signal, and the error detection.
The switch does not turn ON
- When the Blind Spot Warning system setting is ON, the Blind Spot Warning ON indicator does not illuminate even if the warning system switch is depressed.
The switch does not turn OFF
- The Blind Spot Warning ON indicator does not turn off even if the warning system switch is pressed when the Blind Spot Warning ON indicator illuminates.
- BSW system setting is not selectable on the vehicle information display screen.
- NOTE: When the ignition switch is in ACC position, Blind Spot Warning system setting cannot be changed. "Blind Spot Warning" is not indicated on the vehicle information display screen. The switching between ON and OFF cannot be performed by operating the Setting screen on the vehicle information display system. The item "Blind Spot Warning" on the vehicle information display screen is not active.
- The Blind Spot Warning system setting differs from the one set at the previous driving. NOTE: Turn OFF the ignition switch and wait for 5 seconds or more.