Driver Assistance System (Dca): Other Infiniti M37 IV

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the " SRS AIRBAG " and " SEAT BELT " articles of this Service Information.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

DCA System Service

Scheme 51

ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

INPUT SIGNAL ITEM DESCRIPTION

OUTPUT SIGNAL ITEM DESCRIPTION

Fail-safe (ADAS Control Unit)

If a malfunction occurs in each system, ADAS control unit cancels each control, sounds a beep, and turns ON the warning lamp or indicator lamp.

Fail-safe (ICC Sensor)

If a malfunction occurs in the ICC sensor, ADAS control unit cancels control, sounds a beep, and turns ON the ICC system warning lamp in the combination meter.

Scheme 52

Scheme 53

System Control Condition Display

The DCA system switch indicator illuminates and the system is turned ON by pressing the dynamic driver assistance switch at the system OFF.

Condition Display on combination meter Operation status Vehicle ahead not detected Vehicle ahead detected

Scheme 54

Approach Warning Display

1. If own vehicle comes closer to the vehicle ahead due to rapid deceleration of that vehicle or if another vehicle cuts in, the system warns the driver with the chime and DCA system display. Decelerate by depressing the brake pedal to maintain a safe vehicle distance if: The chime sounds. The vehicle ahead detection indicator blinks.
2. The warning chime may not sound in some cases when there is a short distance between vehicles. Some examples are: When the vehicles are traveling at the same speed and the distance between vehicles is not changing When the vehicle ahead is traveling faster and the distance between vehicles is increasing When a vehicle cuts in near own vehicle
3. The warning chime will not sound when own vehicle approaches vehicles that are parked or moving slowly.

Condition Display on combination meter When the system judges that the brake operation by the driver is necessary

WARNING LAMP DISPLAY DESCRIPTION Condition Description Display on combination meter Warning display When the dynamic driver assistance switch is turned ON with settings of DCA system, LDP system and BSI system OFF The DCA system is not activated. The DCA system switch indicator blinks When the VDC or ABS (including the TCS) operates When the VDC is turned OFF When the drive mode select switch is in SNOW position When driving into a strong light (i.e., sunlight) The DCA system is automatically canceled. The chime will sound and the DCA system switch indicator will blink NOTE: The system operates if the dynamic driver assistance switch is turned OFF==>ON after the condition improves When the sensor window is dirty, making it impossible to detect a vehicle ahead The DCA system is automatically canceled. The chime sounds and the ICC system warning lamp will come on and the "CLEAN SENSOR" indicator will appear NOTE: Stop the vehicle in a safe location and turn the ignition switch OFF. Clean the dirty area with soft cloth. The system returns to normal condition when turning the ignition switch ON again When the DCA system is not operating properly The chime sounds and the ICC system warning lamp will come on NOTE: Turn the ignition switch OFF, and then turn the ignition switch ON again. If there is no malfunction, the system returns to the normal condition

Scheme 55

Scheme 56

Scheme 57

Note. When the DCA system is automatically canceled, the cancellation condition can be displayed on "WORK SUPPORT" of CONSULT (ICC/ADAS).

Scheme 58

Scheme 59

1. If the vehicle ahead comes to a stop, the vehicle decelerates to a standstill within the limitations of the system. The system will cancel once it judges that the vehicle has come to a standstill with a warning chime. To prevent the vehicle from moving, the driver must depress the brake pedal.
2. The DCA system will not apply brake control while the driver is depressing the accelerator pedal.
3. This system is only an aid to assist the driver and is not a collision warning or avoidance device. It is the driver's responsibility to stay alert, drive safely and be in control of the vehicle at all times.
4. This system will not adapt automatically to road conditions. Do not use the system on roads with sharp curves, or on icy roads, in heavy rain or in fog.
5. The distance sensor will not detect under most conditions. Stationary and slow moving vehicles Pedestrians or objects in the roadway Oncoming vehicles in the same lane Motorcycles traveling offset in the travel lane
6. As there is a performance limit to the distance control function, never rely solely on the DCA system. This system does not correct careless, inattentive or absent minded driving, or overcome poor visibility in rain, fog, or other bad weather. Decelerate the vehicle speed by depressing the brake pedal, depending on the distance to the vehicle ahead and the surrounding circumstances in order to maintain a safe distance between vehicles.
7. The system may not detect the vehicle in front of own vehicle in certain road or weather conditions. To avoid accidents, never use the DCA system under the following conditions. On roads with sharp curves On slippery road surfaces such as on ice or snow, etc. During bad weather (rain, fog, snow, etc.) When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle When rain, snow or dirt cover the system sensor On steep downhill roads (frequent braking may result in overheating the brakes) On repeated uphill and downhill roads
8. Do not use the DCA system if own vehicle are towing a trailer. The system may not detect a vehicle ahead.
9. In some road or traffic conditions, a vehicle or object can unexpectedly come into the sensor detection zone and cause automatic braking. Driver may need to control the distance from other vehicles using the accelerator pedal. Always stay alert and avoid using the DCA system when it is not recommended in this Service Information.
10. The following are some conditions in which the sensor cannot detect the signals. When the reflector of the vehicle ahead is positioned high on the vehicle (trailer, etc.) When the reflector on the vehicle ahead is missing, damaged or covered When the reflector of the vehicle ahead is covered with dirt, snow and road spray When the snow or road spray from traveling vehicles reduces the sensor's visibility When dense exhaust or other smoke (black smoke) from vehicles reduces the sensor's visibility When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle
11. The DCA system is designed to automatically check the sensor's operation. When the sensor is covered with dirt or is obstructed, the system will automatically be canceled. If the sensor is covered with ice, a transparent or translucent vinyl bag, etc., the DCA system may not detect them. In these instances, the DCA system may not be able to decelerate the vehicle properly. Be sure to check and clean the sensor regularly.
12. The DCA system is designed to help assist the driver to maintain a following distance from the vehicle ahead. The system will decelerate as necessary and if the vehicle ahead comes to a stop, the vehicle decelerates to standstill. However, the DCA system can only apply up to 25% of the vehicles total braking power. If a vehicle moves into the traveling lane ahead or if a vehicle traveling ahead rapidly decelerates, the distance between vehicles may become closer because the DCA system cannot decelerate the vehicle quickly enough. If this occurs, the DCA system will sound a warning chime and blink the system display to notify the driver to take necessary action.
13. The DCA system does not control vehicle speed or warn when driver approach stationary and slow moving vehicles. Driver must pay attention to vehicle operation to maintain proper distance from vehicles ahead.
14. The detection zone of the sensor is limited. A vehicle ahead must be in the detection zone for the system to operate. A vehicle ahead may move outside of the detection zone due to its position within the same lane of travel. Motorcycles may not be detected in the same lane ahead if they are traveling offset from the center line of the lane. A vehicle that is entering the lane ahead may not be detected until the vehicle has completely moved into the lane. If this occurs, the system may warn driver by blinking the system indicator and sounding the chime. The driver may have to manually control the proper distance away from vehicle traveling ahead. When driving on some roads, such as winding, hilly, curved, narrow roads, or roads which are under construction, the sensor may detect vehicles in a different lane, or may temporarily not detect a vehicle traveling ahead. This may cause the system to work inappropriately. The detection of vehicles may also be affected by vehicle operation (steering maneuver or traveling position in the lane, etc.) or vehicle condition. If this occurs, the system may warn driver by blinking the system indicator and sounding the chime unexpectedly. The driver will have to manually control the proper distance away from the vehicle traveling ahead.
15. The approach warning chime may sound and the system display may blink when the sensor detects some reflectors which are fitted on vehicles in other lanes or on the side of the road. This may cause the DCA system to operate inappropriately. The sensor may detect these reflectors when the vehicle is driven on winding roads, hilly roads or when entering or exiting a curve. The sensor may also detect reflectors on narrow roads or in road construction zones. In these cases driver will have to manually control the proper distance ahead of own vehicle. Also, the sensor sensitivity can be affected by vehicle operation (steering maneuver or driving position in the lane) or traffic or vehicle condition (for example, if a vehicle is being driven with some damage).
16. The DCA system automatically decelerates own vehicle to help assist the driver to maintain a following distance from the vehicle ahead. Manually brake when deceleration is required to maintain a safe distance upon sudden braking by the vehicle ahead or when a vehicle suddenly appears in front of own vehicle. Always stay alert when using the DCA system.
17. When the vehicle ahead detection indicator lamp is not illuminated, system will not control or warn the driver.
18. Never place a foot under the brake pedal. A foot may be caught when the system controls the brake.
19. Depending on the position of the accelerator pedal, the system may not be able to assist the driver to release the accelerator pedal appropriately.
20. If the vehicle ahead comes to a standstill, the vehicle decelerates to a standstill within the limitations of the system. The system will release brake control with a warning chime once it judges the vehicle is at a standstill. To prevent the vehicle from moving, the driver must depress the brake pedal. [The system will resume control automatically once the system reaches 5 km/h (3 MPH)].

METHOD OF STARTING

Scheme 60

Scheme 61

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-573617-S03818570942013082200000) ". NOTE: It displays for up to 5 minutes and then stops. If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent one is displayed first.

WORK SUPPORT

Note. Causes of the maximum five cancellations (system cancel) are displayed. The displayed cancellation causes display the number of the ignition switch ON/OFF up to 254. It is fixed to 254 if it is over 254. It returns to 0 when the same cancellation cause is detected again.

Scheme 62

Scheme 63

Scheme 64

METER LAMP

Note. The test can be performed only when the engine is running.

STOP LAMP

ICC BUZZER

BRAKE ACTUATOR

Note. The test can be performed only when the engine is running.

Note. The test is finished in 10 seconds after starting

Scheme 65

Active Pedal

Note. Depress the accelerator pedal to check when performing the test. The test can be performed only when the engine is running.

Note. The test is finished in 10 seconds after starting

Scheme 66

DCA INDICATOR

Note. The test can be performed only when the engine is running.

LDP BUZZER

WARNING SYSTEM IND

LDP ON IND

LANE DEPARTURE W/L

BSW/BSI WARNING LAMP

BSI ON INDICATOR

DATA MONITOR

FFD (Freeze Frame Data)

The accelerator pedal actuator records the following data when the malfunction is detected.

Fail-safe

If a malfunction occurs in each system, ADAS control unit cancels each control, sounds a beep, and turns ON the warning lamp or indicator lamp.

PHYSICAL VALUES

If a malfunction occurs in the ICC sensor, ADAS control unit cancels control, sounds a beep, and turns ON the ICC system warning lamp in the combination meter.

DETAILED FLOW

1. INTERVIEW FOR MALFUNCTION It is also important to clarify the customer concerns before starting the inspection. Interview the customer about the concerns carefully and understand the symptoms fully. NOTE: The customers are not professionals. Never assume that "maybe the customer means..." or "maybe the customer mentioned this symptom". : GO TO 2.
2. SELF-DIAGNOSIS WITH CONSULT Perform "All DTC Reading" with CONSULT. Check if the DTC is detected on the self-diagnosis results of "ICC/ADAS" and/or "ACCELE PEDAL ACT". Is any DTC detected? YES: GO TO 5 . NO: GO TO 3.
3. ACTION TEST Perform DCA system action test to check the operation status. Refer to " «DESCRIPTION»(ref-573618-S15598773542013082200000) ". Check if any other malfunctions occur. : GO TO 4.
4. SYMPTOM DIAGNOSIS Perform the applicable diagnosis according to the diagnosis chart by symptom. Refer to " «SYMPTOM TABLE»(ref-573618-S38066937322013082200000) ". : GO TO 6 .
5. TROUBLE DIAGNOSIS BY DTC Check the DTC in the self-diagnosis results. Perform trouble diagnosis for the detected DTC. Refer to " «DTC INDEX»(ref-573618-S39553697082013082200000) " (ICC/ADAS) and/or " «DTC INDEX»(ref-573618-S00764776022013082200000) " (ACCELE PEDAL ACT). NOTE: If "DTC: U1000" is detected, first diagnose the CAN communication system or ITS communication system. : GO TO 6.
6. MALFUNCTIONING PART REPAIR Repair or replace the identified malfunctioning parts. : GO TO 7.
7. REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT) Erases self-diagnosis results. Perform "All DTC Reading" again after repairing or replacing the specific items. Check if any DTC is detected in self-diagnosis results of "ICC/ADAS" and "ACCELE PEDAL ACT". Is any DTC detected? YES: GO TO 5 . NO: GO TO 8.
8. REPAIR CHECK (ACTION TEST) Perform the DCA system action test. Check that the malfunction symptom is solved or no other symptoms occur. Is there a malfunction symptom? YES: GO TO 4 . NO: INSPECTION END

Work Procedure

1. LASER BEAM AIMING ADJUSTMENT Adjust the laser beam aiming. Refer to " «DESCRIPTION»(ref-573604-S40117573552013082200000) ". : GO TO 2.
2. DCA SYSTEM ACTION TEST Perform the DCA system action test. Refer to " «DESCRIPTION»(ref-573618-S15598773542013082200000) ". Check that the DCA system operates normally. : INSPECTION END

1. ACCELERATOR PEDAL RELEASED POSITION LEARNING Perform accelerator pedal released position learning. Refer to " «DESCRIPTION»(ref-573577-S33966080532013082200000) " (VQ37VHR) or " «DESCRIPTION»(ref-573597-S07466647142013082200000) " (VK56VD for USA and Canada). : GO TO 2.
2. DCA SYSTEM ACTION TEST Perform the DCA system action test. Refer to " «DESCRIPTION»(ref-573618-S15598773542013082200000) ". Check that the DCA system operates normally. : INSPECTION END

Note. When the ICC system is set, the information display changes to the ICC system display.

Scheme 67

1. ICC SYSTEM ACTION TEST Perform the ICC system action test. Refer to " «DESCRIPTION»(ref-573604-S13863895562013082200000) ". : GO TO 2.
2. CHECK DCA SYSTEM SETTING Start the engine. After starting the engine wait for 30 seconds or more. Check that the DCA system setting can be enabled/disabled on the navigation screen. Turn OFF the ignition switch and wait for 5 seconds or more. Check that the previous setting is saved when the engine starts again. : GO TO 3.
3. CHECK DRIVER ASSISTANCE SYSTEMS SWITCH Start the engine. After starting the engine wait for 30 seconds or more. Enable the setting of the DCA system on the navigation screen. Press the dynamic driver assistance switch (1). Check that the DCA system switch indicator (2) on the information display illuminates. Check that the DCA system switch indicator turns OFF when the system is turned OFF by pressing the dynamic driver assistance switch. Check that the DCA system switch indicator turns OFF when the engine starts again. NOTE: The DCA system switch indicator does not illuminate even when the dynamic driver assistance switch is turned ON within approximately 5 seconds after starting the engine. If the accelerator pedal assembly is not replaced: INSPECTION END If the accelerator pedal assembly is replaced: GO TO 4.
4. CHECK DCA SYSTEM OPERATION Check that the accelerator pedal actuator operates by the "Active Test" items "ACCELERATOR PEDAL ACTUATOR TEST1" and "ACCELERATOR PEDAL ACTUATOR TEST2" of "ACCELE PEDAL ACT" with CONSULT. : INSPECTION END

CAN COMMUNICATION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control units, and each control unit shares information and links with other control units during operation (not independent). 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 the required data only.

CAN communication signal chart. Refer to " CAN COMMUNICATION SYSTEM: CAN COMMUNICATION SIGNAL CHART ".

ITS COMMUNICATION

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 control units with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

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 control units with 2 communication lines.
2. ITS communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.

PRECAUTIONS FOR DISTANCE CONTROL ASSIST (DCA) SYSTEM

1. If the vehicle ahead comes to a stop, the vehicle decelerates to a standstill within the limitations of the system. The system will cancel once it judges that the vehicle has come to a standstill with a warning chime. To prevent the vehicle from moving, the driver must depress the brake pedal.
2. The DCA system will not apply brake control while the driver is depressing the accelerator pedal.
3. This system is only an aid to assist the driver and is not a collision warning or avoidance device. It is the driver's responsibility to stay alert, drive safely and be in control of the vehicle at all times.
4. This system will not adapt automatically to road conditions. Do not use the system on roads with sharp curves, or on icy roads, in heavy rain or in fog.
5. The distance sensor will not detect under most conditions. Stationary and slow moving vehicles Pedestrians or objects in the roadway Oncoming vehicles in the same lane Motorcycles traveling offset in the travel lane
6. As there is a performance limit to the distance control function, never rely solely on the DCA system. This system does not correct careless, inattentive or absent minded driving, or overcome poor visibility in rain, fog, or other bad weather. Decelerate the vehicle speed by depressing the brake pedal, depending on the distance to the vehicle ahead and the surrounding circumstances in order to maintain a safe distance between vehicles.
7. The system may not detect the vehicle in front of own vehicle in certain road or weather conditions. To avoid accidents, never use the DCA system under the following conditions. On roads with sharp curves On slippery road surfaces such as on ice or snow, etc. During bad weather (rain, fog, snow, etc.) When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle When rain, snow or dirt covers the system sensor On steep downhill roads (frequent braking may result in overheating the brakes) On repeated uphill and downhill roads
8. Do not use the DCA system if own vehicle are towing a trailer. The system may not detect a vehicle ahead.
9. In some road or traffic conditions, a vehicle or object can unexpectedly come into the sensor detection zone and cause automatic braking. Driver may need to control the distance from other vehicles using the accelerator pedal. Always stay alert and avoid using the DCA system when it is not recommended in this Service Information.
10. The following are some conditions in which the sensor cannot detect the signals. When the reflector of the vehicle ahead is positioned high on the vehicle (trailer, etc.) When the reflector on the vehicle ahead is missing, damaged or covered When the reflector of the vehicle ahead is covered with dirt, snow and road spray When the snow or road spray from traveling vehicles reduces the sensor's visibility When dense exhaust or other smoke (black smoke) from vehicles reduces the sensor's visibility When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle
11. The DCA system is designed to automatically check the sensor's operation. When the sensor is covered with dirt or is obstructed, the system will automatically be canceled. If the sensor is covered with ice, a transparent or translucent vinyl bag, etc., the DCA system may not detect them. In these instances, the DCA system may not be able to decelerate the vehicle properly. Be sure to check and clean the sensor regularly.
12. The DCA system is designed to help assist the driver to maintain a following distance from the vehicle ahead. The system will decelerate as necessary and if the vehicle ahead comes to a stop, the vehicle decelerates to standstill. However, the DCA system can only apply up to 25% of the vehicles total braking power. If a vehicle moves into the traveling lane ahead or if a vehicle traveling ahead rapidly decelerates, the distance between vehicles may become closer because the DCA system cannot decelerate the vehicle quickly enough. If this occurs, the DCA system will sound a warning chime and blink the system display to notify the driver to take necessary action.
13. The DCA system does not control vehicle speed or warn when driver approach stationary and slow moving vehicles. Driver must pay attention to vehicle operation to maintain proper distance from vehicles ahead.
14. The detection zone of the sensor is limited. A vehicle ahead must be in the detection zone for the system to operate. A vehicle ahead may move outside of the detection zone due to its position within the same lane of travel. Motorcycles may not be detected in the same lane ahead if they are traveling offset from the center line of the lane. A vehicle that is entering the lane ahead may not be detected until the vehicle has completely moved into the lane. If this occurs, the system may warn driver by blinking the system indicator and sounding the chime. The driver may have to manually control the proper distance away from vehicle traveling ahead. When driving on some roads, such as winding, hilly, curved, narrow roads, or roads which are under construction, the sensor may detect vehicles in a different lane, or may temporarily not detect a vehicle traveling ahead. This may cause the system to work inappropriately. The detection of vehicles may also be affected by vehicle operation (steering maneuver or traveling position in the lane, etc.) or vehicle condition. If this occurs, the system may warn driver by blinking the system indicator and sounding the chime unexpectedly. The driver will have to manually control the proper distance away from the vehicle traveling ahead.
15. The approach warning chime may sound and the system display may blink when the sensor detects some reflectors which are fitted on vehicles in other lanes or on the side of the road. This may cause the DCA system to operate inappropriately. The sensor may detect these reflectors when the vehicle is driven on winding roads, hilly roads or when entering or exiting a curve. The sensor may also detect reflectors on narrow roads or in road construction zones. In these cases driver will have to manually control the proper distance ahead of own vehicle. Also, the sensor sensitivity can be affected by vehicle operation (steering maneuver or driving position in the lane) or traffic or vehicle condition (for example, if a vehicle is being driven with some damage).
16. The DCA system automatically decelerates own vehicle to help assist the driver to maintain a following distance from the vehicle ahead. Manually brake when deceleration is required to maintain a safe distance upon sudden braking by the vehicle ahead or when a vehicle suddenly appears in front of own vehicle. Always stay alert when using the DCA system.
17. When the vehicle ahead detection indicator lamp is not illuminated, system will not control or warn the driver.
18. Never place a foot under the brake pedal. A foot may be caught when the system controls the brake.
19. Depending on the position of the accelerator pedal, the system may not be able to assist the driver to release the accelerator pedal appropriately.
20. If the vehicle ahead comes to a standstill, the vehicle decelerates to a standstill within the limitations of the system. The system will release brake control with a warning chime once it judges the vehicle is at a standstill. To prevent the vehicle from moving, the driver must depress the brake pedal. [The system will resume control automatically once the system reaches 5 km/h (3 MPH)].

Exploded View

Scheme 68

Refer to " MODELS WITH DISTANCE CONTROL ASSIST SYSTEM: EXPLODED VIEW ".

Dynamic driver assistance switch is integrated in the ICC steering switch. Refer to " EXPLODED VIEW ".