Driver Assistance System (Dca): Overview Infiniti FX50 II рестайлинг

Scheme 30

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ICC SENSOR INTEGRATED UNIT): Description

1. Always perform the laser beam aiming adjustment after removing and installing or replacing the ICC sensor integrated unit. CAUTION: The system does not operate normally unless the laser beam aiming adjustment is performed. Always perform it.
2. Perform the DCA system action test check that the DCA system operates normally.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (ACCELERATOR PEDAL ASSEMBLY): Description

1. Always perform accelerator pedal released position learning when replacing the accelerator pedal assembly or disconnecting the accelerator pedal position sensor connector.
2. Perform the DCA system action test check that the DCA system operates normally.

ACTION TEST: Description

Always perform the DCA system action test to check that the system operates normally after replacing the ICC sensor integrated unit, replacing the accelerator pedal assembly, or repairing any DCA system malfunction.

FUNCTION DESCRIPTION

When a vehicle is detected ahead

1. The vehicle ahead detection indicator comes on.

When vehicle approaches a vehicle ahead

1. If the driver is not depressing the accelerator pedal, the system activates the brakes to decelerate smoothly as necessary. If the vehicle ahead comes to a stop, the vehicle decelerates to a standstill within the limitations of the system.
2. If the driver is depressing the accelerator pedal, the system moves the accelerator pedal upward to assist the driver to release the accelerator pedal.

When brake operation by driver is required

1. The system alerts the driver by a warning chime and blinking the vehicle ahead detection indicator. If the driver is depressing the accelerator pedal after the warning, the system moves the accelerator pedal upward to assist the driver to switch to the brake pedal.

Note. Depending on the position of the accelerator pedal, the system may not be able to assist the driver to release the accelerator pedal appropriately. When the driver depresses the accelerator pedal even further while the system is moving the accelerator pedal upward, the accelerator pedal control will be canceled. When the driver is depressing the accelerator pedal, the brake control by the system is not operated. When the driver is depressing the brake pedal, neither the brake control nor the alert by the system operates. When the ICC system is set, the DCA system will be canceled.

OPERATION DESCRIPTION

Calculate the distance and relative speed with the vehicle ahead by ICC sensor integrated unit. Control the accelerator pedal actuator and brake booster control unit based on the calculated value via ITS communication.

When vehicle approaches a vehicle ahead If the driver is not depressing the accelerator pedal, the system activates the brakes to decelerate smoothly as necessary. If the driver is depressing the accelerator pedal, the system moves the accelerator pedal upward to assist the driver to release the accelerator pedal. When brake operation by driver is required The system alerts the driver by a warning chime and blinking the vehicle ahead detection indicator. If the driver is depressing the accelerator pedal after the warning, the system moves the accelerator pedal upward to assist the driver to switch to the brake pedal

Scheme 31

Scheme 32

Scheme 33

Note. DCA system settings can be changed by using the vehicle settings function in the MULTI AV system. When the ignition switch is in ACC position, DCA system settings cannot be changed.

Operation Condition

ICC sensor integrated unit performs the control when the following conditions are satisfied

1. When the DCA system setting on the navigation screen is ON.
2. When the dynamic driver assistance switch is turned to ON.
3. When the brake pedal is not depressed.
4. When the vehicle speed is above approximately 5 km/h (3 MPH).
5. When the vehicle ahead is detected.
6. When the ICC system is not set.

No Operation Condition

The ICC sensor integrated unit is not operate when the system is under any conditions of the no operation condition.

1. When the DCA system setting on the navigation screen is OFF.
2. When the brake pedal depressed.
3. When the ICC system is set.
4. When the system judges that the vehicle comes to a standstill by the system control.
5. When the vehicle ahead is not detected.

Operation Cancellation Condition

The ICC sensor integrated unit cancels the operation when the system is under any conditions of the operation cancellation condition.

1. When the dynamic driver assistance switch is turned to OFF.
2. When the system malfunction occurs.
3. When ABS or VDC (including the TCS) operates.
4. When the VDC is turned OFF.
5. When the snow mode switch is turned ON.
6. When driving into a strong light (i.e., sunlight).
7. When the ICC sensor integrated unit body window is dirty and the measurement of the distance between the vehicles becomes difficult.

Operation At The Driver Operation

Give priority to the driver operation in the following situation

1. When the accelerator pedal is depressed again.
2. When the brake pedal is depressed.

Scheme 34

Component Description

Diagnosis Description

The DTC is displayed on the information display by operating the ICC steering switch.

Scheme 35

ON BOARD SELF-DIAGNOSIS OPERATION PROCEDURE

Scheme 36

1. Turn the ignition switch OFF.
2. Start the engine.
3. Wait for 5 seconds after starting the engine. Push up the RESUME/ACCELERATE switch 5 times and push down the SET/COAST switch 5 times within 10 seconds. NOTE: If the above operation cannot be performed within 10 seconds after waiting for 5 seconds after starting the engine, repeat the procedure from step 1 .
4. The DTC is displayed on the set vehicle speed indicator (1) on the ICC system display on the information display when the on board self-diagnosis starts. Refer to " «DTC INDEX»(ref-524036-S13901744512013012500000) ".

Scheme 37

Note. It displays for up to 5 minutes and then stops. If multiple malfunctions exist, up to 3 DTCs can be stored in memory at the most, and the most recent one is displayed first.

DESCRIPTION

CONSULT performs the following functions via CAN communication using ICC sensor integrated unit

CONSULT performs the following functions via CAN communication with ICC sensor integrated unit and the communication with accelerator pedal actuator

ECU IDENTIFICATION

Displays accelerator pedal assembly parts number.

ICC sensor integrated unit function description

1. It detects the reflected light from the vehicle ahead by irradiating a laser forward. It calculates the vehicle distance from and relative speed with the vehicle ahead depending on the detected signal.
2. It outputs the brake fluid pressure command signal to the brake booster control unit and the accelerator pedal feedback force control signal to the accelerator pedal actuator depending on the signal from various sensors and switches via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The ICC sensor integrated unit controls the system with the ignition power supply.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The ICC sensor integrated unit receives the vehicle speed signal (wheel speed) from ABS actuator and electric unit (control unit) and the A/T vehicle speed sensor signal (output shaft revolution signal) from TCM via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ABS actuator and electric unit (control unit) transmits the vehicle speed signal (wheel speed), and VDC/TCS/ABS system operation condition to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. ICC brake switch is turned OFF and stop lamp switch is turned ON, when depressing the brake pedal.
2. ICC brake switch signal and stop lamp switch signal are input to ECM. These signals are transmitted from ECM to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. Turns the DCA system ON/OFF. (When the setting of the DCA system on the navigation screen is ON.)
2. The ICC steering switch signal is input to the ECM. It is transmitted from ECM to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The brake pressure sensor detects the brake fluid pressure value in the brake master cylinder and outputs the value to the brake booster control unit.
2. The brake booster control unit receives the brake fluid pressure command signal from the ICC sensor integrated unit via ITS communication and controls the brake fluid pressure while feeding back the brake fluid pressure value (brake fluid pressure control signal).

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The booster solenoid is integrated with the brake booster.
2. The brake booster control unit activates the booster solenoid to operate the brake booster (brake) according to the brake fluid pressure command signal received from ICC sensor integrated unit via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The release switch is integrated with the brake booster.
2. The release switch detects that the driver depresses the brake pedal, and it outputs the signal to the brake booster control unit.
3. The brake booster control unit transmits the release switch signal [release switch NO signal (normal open), release switch NC signal (normal close)] to the ICC sensor integrated unit via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The brake booster control unit receives the brake fluid pressure command signal from ICC sensor integrated unit via ITS communication and activates the booster solenoid to operate the brake booster.
2. The brake booster adjusts the brake fluid pressure by driving the booster solenoid.
3. The brake pedal is controlled when the brake booster adjusts the brake fluid pressure.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit detects the reflected light from the vehicle ahead by irradiating a laser forward. It calculates the distance from and relative speed with the vehicle ahead based on the detected signal.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The ICC sensor integrated unit transmits the ICC brake hold relay drive signal to the brake booster control unit via ITS communication.
2. The ICC brake hold relay activates the stop lamp by the ICC brake hold relay drive signal (stop lamp drive signal) outputted by the brake booster control unit.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ECM transmits the accelerator pedal position signal, ICC brake switch signal, stop lamp switch signal, ICC steering switch signal, etc. to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit judges the gear position based on the following signals

1. Shift position signal transmitted from TCM via CAN communication.
2. Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
3. Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit (control unit) via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit detects the reflected light from the vehicle ahead by irradiating a laser beam forward. It calculates the distance from and relative speed with the vehicle ahead based on the detected signal.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Always perform the laser beam aiming adjustment after replacing the ICC sensor integrated unit.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit integrates the temperature sensor.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The brake booster control unit receives the brake fluid pressure command signal from ICC sensor integrated unit via ITS communication and activates the booster solenoid to operate the brake booster.
2. The brake booster adjusts the brake fluid pressure by driving the booster solenoid.
3. The brake pedal is controlled when the brake booster adjusts the brake fluid pressure.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit judges the NP position status from the shift position signal and current gear position signal received from TCM via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The brake booster control unit controls the brake booster, etc. with the battery power supply and ignition power supply.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The brake booster control unit communicates with ICC sensor integrated unit for brake booster control via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The brake booster control unit inputs the brake fluid pressure control signal and release switch signal and transmits them to ICC sensor integrated unit via ITS communication. Also, it receives the brake fluid pressure command signal from ICC sensor integrated unit via ITS communication and activates the booster solenoid to operate the brake booster (brake).

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit shares components with the IBA system.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit transmits the signal required by the DCA system control to ECM via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ICC sensor integrated unit transmits the command signal required for the ECM control via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The accelerator pedal actuator is integrated into the accelerator pedal assembly.
2. The accelerator pedal actuator consists of the control unit and motor.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

It measures the rotation amount, rotation speed, and rotation direction of steering wheel, and then transmits them to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

1. The accelerator pedal actuator is integrated into the accelerator pedal assembly.
2. The accelerator pedal actuator consists of the control unit and motor.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

1. The accelerator pedal actuator is integrated into the accelerator pedal assembly.
2. The accelerator pedal actuator consists of the control unit and motor.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

The accelerator pedal actuator is integrated into with a temperature sensor.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

Power is supplied from ignition power supply and battery power supply to the accelerator pedal actuator.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

ABS actuator and electric unit (control unit) transmits the VDC system signal to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

It measures the rotation amount, rotation speed, and rotation direction of steering wheel, and then transmits them to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The brake booster control unit transmits the signal related to brake control to ICC sensor integrated unit via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ECM transmits the signal related to engine control [DCA system] to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

TCM transmits the signal related to A/T control to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

ABS actuator and electric unit (control unit) transmits the signal related to the VDC system to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

The brake booster control unit transmits the signal related to brake control to ICC sensor integrated unit via ITS communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

It detects the rotation amount, rotation speed, and rotation direction of steering wheel, and then transmits them to ICC sensor integrated unit via CAN communication.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

ACCELERATOR PEDAL ACTUATOR: Description

1. ITS communication is a multiplex communication system. This enables the system to transmit and receive large quantities of data at high speed by connecting ICC sensor integrated unit, brake booster control unit, and accelerator pedal actuator with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

Check the operation after performing the accelerator pedal released position learning when the following operation is performed

1. Disconnection and connection of accelerator pedal position sensor connector
2. Replace accelerator pedal assembly

ICC SENSOR INTEGRATED UNIT: Description

1. CAN controller controls the communication of CAN communication signal and the error detection.
2. CAN controller controls the communication of ITS communication signal and the error detection.

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed

1. Removal and installation of ICC sensor integrated unit
2. Replacement of ICC sensor integrated unit

CAN controller controls the communication of ITS communication signal and the error detection.

The accelerator pedal released position learning is necessary when the following operation is performed

1. Disconnection and connection of accelerator pedal assembly connector
2. Replace accelerator pedal assembly

1. The ICC sensor integrated unit transmits the buzzer output signal to the brake booster control unit via ITS communication.
2. The brake booster control unit outputs the buzzer output signal to the ICC warning chime.
3. A warning chime sounds when the system is canceled or when the vehicle distance from the vehicle ahead is too close.

The switch does not turn ON

1. When the DCA system setting is ON, the DCA system switch indicator does not illuminate even if the dynamic driver assistance switch is depressed.

The switch does not turn OFF

1. The DCA system switch indicator does not turn off even if the dynamic driver assistance switch is pressed when the DCA system switch indicator illuminates.

Note. The system cannot be operated when setting conventional (fixed speed) cruise control mode.

1. DCA system setting is not selectable on the navigation screen. NOTE: When the ignition switch is in ACC position, DCA system settings cannot be changed. Distance Control Assist is not indicated on the navigation screen. The switching between ON and OFF cannot be performed by operating the navigation system. The item of Distance Control Assist on the navigation screen is not active.
2. The DCA system setting differs from the one set at the previous driving.

Note. Turn OFF the ignition switch and wait for 5 seconds or more.

The dynamic driver assistance switch can be turned ON/OFF, but the DCA system does not operate.

Note. Never start the operation under the following conditions

No operation condition

1. When the brake pedal depressed
2. When the ICC system is set
3. When the system judges that the vehicle comes to a standstill by the system control
4. When the vehicle ahead is not detected Operation cancellation condition
5. When the dynamic driver assistance switch is turned to OFF
6. When the system malfunction occurs
7. When ABS or VDC (including the TCS) operates
8. When the VDC is turned OFF
9. When the snow mode switch is turned ON
10. When driving into a strong light (i.e., sunlight)
11. When the ICC sensor integrated unit body window is dirty and the measurement of the distance between the vehicles becomes difficult

The warning chime may not sound in some cases when there is a short distance between vehicles. Some examples are

1. When the vehicles are traveling at the same speed and the distance between vehicles is not changing
2. When the vehicle ahead is traveling faster and the distance between vehicles is increasing
3. When a vehicle cuts in near own vehicle
4. The warning chime will not sound when own vehicle approaches vehicles that are parked or moving slowly.
5. The warning chime does not sound when the system does not detect any vehicle ahead. (Diagnose the conditions under which the system is detecting the vehicle ahead and when the system is malfunctioning. If there is any malfunction in detecting the vehicle ahead, check the system following the " «DESCRIPTION»(ref-524071-S05908713432013012500000) ".)

The dynamic driver assistance switch can be turned ON/OFF but the actuation force of accelerator pedal is not generated.

Note. When the vehicle ahead detection indicator does not illuminate, the control and warning with the system are not performed. The actuation force of accelerator pedal may not be generated sufficiently depending on depressing method or depressing amount of accelerator pedal.

Symptom check: Detection function may become unstable under the following conditions

1. When the reflector of vehicle ahead is broken or dirty.
2. When the vehicle is driving on a curve such as S-curve where the curvature changes.
3. When the vehicle is driving on up-and-down road or passing the peak or foot of slope or passing the break of the inclination of hill.

When DCA system is active, the DCA system does not perform any control even through there is a vehicle ahead.

See also:
• ACCELERATOR PEDAL RELEASED POSITION LEARNING: DESCRIPTION
• EXPLODED VIEW