Driver Assistance System (Ldw & Ldp): Other Infiniti FX50 II рестайлинг

DETAILED FLOW

1. INTERVIEW FOR MALFUNCTION Interview the customer to obtain information about symptoms using "Diagnostic Work Sheet". (Refer to " «DIAGNOSTIC WORK SHEET»(ref-524052-S42330599362013012500000) ".) : GO TO 2.
2. SELF-DIAGNOSIS WITH CONSULT Perform self-diagnosis with CONSULT. Check if any DTC is detected. Is any DTC detected? YES: GO TO 5 . NO: GO TO 3.
3. PRE-INSPECTION FOR DIAGNOSIS Perform pre-inspection for diagnosis. Refer to " «INSPECTION PROCEDURE»(ref-524052-S07146921482013012500000) ". : GO TO 4.
4. VERIFY CUSTOMER CONCERN (ACTION TEST) Perform action test and verify the customer's information. Refer to " «DESCRIPTION»(ref-524052-S35012877902013012500000) ". : GO TO 6 .
5. TROUBLE DIAGNOSIS BY DTC Perform trouble diagnosis for the detected DTC. Specify a malfunctioning part. Refer to " «DTC INDEX»(ref-524052-S03267118072013012500000) " (LANE CAMERA UNIT) and/or " «DTC INDEX»(ref-524026-S23650152162013012500000) " [ABS actuator and electric unit (control unit)]. : GO TO 7 .
6. SYMPTOM DIAGNOSIS Perform symptom diagnosis. Specify malfunctioning part. Refer to " «SYMPTOM TABLE»(ref-524052-S32034157732013012500000) ". : GO TO 7.
7. MALFUNCTION PART REPAIR Repair or replace the identified malfunctioning parts. : GO TO 8.
8. REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT) Perform self-diagnosis with CONSULT. Check that any DTC is not detected. Erase DTC if DTC is detected before the repair. Check that DTC is not detected again. Is any DTC detected? YES: GO TO 5 . NO: GO TO 9.
9. REPAIR CHECK (ACTION TEST) Perform action test. Also check the system operation. Does it operate normally? YES: INSPECTION END NO: GO TO 4 .

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (LANE CAMERA UNIT): Special Repair Requirement

1. CAMERA AIMING ADJUSTMENT Perform the camera aiming adjustment with CONSULT. Refer to " «CAMERA AIMING ADJUSTMENT: DESCRIPTION»(ref-524052-S41830231942013012500000) ". : GO TO 2.
2. PERFORM SELF-DIAGNOSIS Perform the self-diagnosis of lane camera unit with CONSULT. Check if any DTC is detected. Is any DTC detected? YES: Perform the trouble diagnosis for the detected DTC. Refer to " «DTC INDEX»(ref-524052-S03267118072013012500000) " (LANE CAMERA UNIT). NO: GO TO 3.
3. LDW/LDP SYSTEM ACTION TEST Perform the LDW/LDP system action test. Refer to " «DESCRIPTION»(ref-524052-S35012877902013012500000) ". Check that the LDW/LDP system operates normally. : WORK END

OUTLINE

1. 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.
2. 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.
3. The warning function will stop when the vehicle returns inside of the lane markers.

Scheme 20

Scheme 21

BULB CHECK ACTION AND FAIL-SAFE INDICATION CHART Vehicle condition/Driver's operation Warning systems ON indicator Indication on the combination meter Ignition switch: OFF => ON 2 sec. ON When DTC is detected (Except "C1B01" and "C1B03") ON (1) Camera aiming is not completed ("C1B01" is detected) ON (1) Temporary disabled status at high temperature ("C1B03" is detected) Blink (1) OFF NOTE: (1) The FCW system operates

Scheme 22

Scheme 23

LDW INITIAL STATE CHANGE

LDW initial state can be changed.

1. LDW initial ON* - LDW function is automatically turned ON, when the ignition switch OFF => ON.
2. LDW initial OFF - LDW function is still OFF when the ignition switch OFF => ON.

*: Factory setting

How to change LDW initial state

1. Turn ignition switch ON.
2. Switch LDW and LDP functions to OFF.
3. Push and hold warning systems switch for more than 4 seconds.
4. Buzzer sounds and blinking of the lane departure warning lamp informs that the LDW initial state change is completed.

SIGNAL INPUT/OUTPUT BY CAN COMMUNICATION

Lane camera unit receives signals via CAN communication. It also detects vehicle conditions that are necessary for LDW control.

Scheme 24

1. Lane Departure Prevention (LDP) system provides a lane departure warning and brake control assistance when the vehicle is driven at speeds of approximately 70 km/h (45 MPH) or more.
2. When the vehicle approaches either the left or the right side of the traveling lane, a warning sounds and the lane departure warning lamp (yellow) on the combination meter blinks to alert the driver.
3. Then, the LDP system automatically applies the brakes for a short period of time to help assist the driver to return the vehicle to the center of the traveling lane.
4. The warning and assist functions stop when the vehicle returns to a position inside of the lane marker.

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

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BULB CHECK ACTION AND FAIL-SAFE INDICATION CHART Vehicle condition/Driver's operation Indication on the combination meter Ignition switch: OFF => ON When DTC is detected (Except "C1B01" or "C1B03") Camera aiming is not completed ("C1B01" is detected) Temporary disabled status at high temperature ("C1B03" is detected) When the dynamic driver assistance switch is turned ON with settings of DCA system and LDP system OFF

Scheme 27

The lane camera unit and ABS actuator and electric unit (control unit) transmit/receive each signals via CAN communication. They also detect the vehicle conditions necessary for LDP control.

Scheme 28

WORK SUPPORT

Cause of Auto-Cancel Display Item List

When LDP control is canceled under the operating condition, "CAUSE OF AUTO-CANCEL" is memorized.

1. Last five cancel (system cancel) causes are displayed.
2. "CAUSE OF AUTO-CANCEL" displays the number of times of ignition switch ON/OFF up to a maximum of "39". "39" is kept even when the number exceeds "39". The number returns to 0 when detecting the same cancellation causes are detected.

DATA MONITOR

FUNCTION

CONSULT can display each diagnostic item using the diagnostic test modes shown following

Display Item List

Refer to " DTC INDEX " (LDW/LDP SYSTEM).

Display Item List

Note. A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an operation for checking. With LDP models.

SPECIFIC DATA MONITOR

Specific data monitor displays specific LDP operating conditions.

Component Function Check

1. CHECK WARNING SYSTEMS SWITCH SIGNAL BY CONSULT CONSULT DATA MONITOR Turn the ignition switch ON. Select "LDW SW" of "LANE CAMERA" data monitor item. With operating the warning systems switch, check the monitor status. Monitor item Condition Monitor status LDW SW warning systems switch Pressed <=> Released On <=> Off Is the item status normal? YES: Warning systems switch circuit is normal. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-524052-S21086715822013012500000) ".

1. CHECK WARNING SYSTEMS ON INDICATOR BY CONSULT CONSULT ACTIVE TEST Turn the ignition switch ON. Select "LDW ON IND" of "LANE CAMERA" active test item. With operating the test item, check the operation. On: Warning systems ON indicator illuminates. Off: Warning systems ON indicator is turned OFF. Does the warning systems ON indicator illuminate? YES: Warning systems ON indicator circuit is normal. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-524052-S23994331032013012500000) ".

1. CHECK LANE DEPARTURE WARNING BUZZER BY CONSULT CONSULT ACTIVE TEST Turn the ignition switch ON. Select "BUZZER DRIVE" of "LANE CAMERA" active test item. With operating the test item, check the operation. On: Lane departure warning buzzer is activated. Off: Lane departure warning buzzer is not activated. Is the lane departure warning buzzer activated? YES: Lane departure warning buzzer circuit is normal. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-524052-S27147659092013012500000) ".

PHYSICAL VALUES

TEMPORARY DISABLED STATUS AT HIGH TEMPERATURE

When using LDW

1. If the vehicle is parked in direct sunlight under high temperature conditions [approximately over 104°F (40°C)] and then started, the system may sound a buzzer and cancel automatically. In this case warning systems ON indicator will blink.
2. When the interior temperature is reduced, warning systems ON indicator is turned ON.

When using LDP

1. If the vehicle is parked in direct sunlight under high temperature conditions [approximately over 104°F (40°C)] and then started, the system may sound a buzzer and cancel automatically. In this case LDP ON indicator lamp will blink.
2. When the interior temperature is reduced, LDP ON indicator lamp is turned ON.

ABS/EBD SYSTEM

If ABS malfunction electrically, ABS warning lamp and VDC warning lamp will turn on. If EBD malfunction electrically, brake warning lamp, ABS warning lamp and VDC warning lamp will turn on. Simultaneously, the VDC/TCS/ABS become one of the following conditions of the fail-safe function

1. For malfunction of ABS, only the EBD is activated and the condition of vehicle is the same condition of vehicles without VDC/TCS/ABS system. NOTE: ABS self-diagnosis sound may be heard. That is a normal condition because a self-diagnosis for "Ignition switch ON" and "The first starting" are being performed.
2. For malfunction of EBD, EBD and ABS become inoperative, and the condition of vehicle is the same as the condition of vehicles without VDC/TCS/ABS/EBD system.

VDC/TCS SYSTEM

If VDC/TCS system malfunction electrically, VDC warning lamp are turned on, and the condition of vehicle is the same as the condition of vehicles without VDC/TCS control.

LDW/LDP SYSTEM

1. In case of malfunction in the LDW/LDP system, lane departure warning lamp is turned ON, and the condition of vehicle is the same as the condition of vehicles without LDW/LDP control.
2. In case of malfunction in the VDC/TCS/ABS system, lane departure warning lamp is turned ON, and the condition of vehicle is the same as the condition of vehicles without LDW/LDP control.

LANE DEPARTURE WARNING (LDW)

1. LDW system is only a warning device to inform the driver of a potential unintended lane departure. It does not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay alert, drive safely, keep the vehicle in the traveling lane, and be in control of the vehicle at all times.
2. LDW system does not operate at speeds below approximately 72 km/h (45 MPH) or if it cannot detect lane markers.
3. Excessive noise interfere with the warning sound, and the buzzer may not be heard.
4. LDW system may not function properly under the following conditions: On roads where there are multiple parallel lane markers; lane markers that are faded or not painted clearly; yellow painted lane markers; non-standard lane markers; or covered with water, dirt or snow, etc. On roads where the discontinued lane markers are still detectable. On roads where there are sharp curves. On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or lines remaining after road repairs. (The LDW system could detect these items as lane markers.) On roads where the traveling lane merges or separates. When the vehicle's traveling direction does not align with the lane marker. When traveling close to other vehicle in front of the vehicle, which obstructs the lane camera unit detection range. When rain, snow or dirt adheres to the windshield in front of the lane camera unit. When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly. When strong light enters the lane camera unit. (For example, the light directly shines on the front of the vehicle at sunrise or sunset.) When a sudden change in brightness occurs. (For example, when the vehicle enters or exits a tunnel or under a bridge.)

LANE DEPARTURE PREVENTION (LDP)

1. LDP system does not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay alert, drive safely, keep the vehicle in the traveling lane, and be in control of vehicle at all times.
2. LDP system is primarily intended for use on well-developed freeways or highways. It may not detect the lane markers in certain roads, weather or driving conditions.
3. Using the LDP system under some conditions of road, lane marker or weather, or when driver changes lanes without using the turn signal could lead to an unexpected system operation. In such conditions, driver needs to correct the vehicle's direction with driver's steering operation to avoid accidents.
4. When the LDP system is operating, avoid excessive or sudden steering maneuvers. Otherwise, driver could lose control of the vehicle.
5. The LDP system does not operate at speeds below approximately 72 km/h (45 MPH) or if it cannot detect lane markers.
6. The LDP system may not function properly under the following conditions, and do not use the LDP system: During bad weather (rain, fog, snow, wind, etc.). When driving on slippery roads, such as on ice or snow, etc. When driving on winding or uneven roads. When there is a lane closure due to road repairs. When driving in a makeshift lane. When driving on roads where the lane width is too narrow. When driving without normal tire conditions (for example, tire wear, low tire pressure, installation of spare tire, tire chains, non-standard wheels). When the vehicle is equipped with non-original brake parts or suspension parts.
7. Excessive noise does interfere with the warning sound, and the buzzer may not be heard.
8. The functions of the LDP system (warning and brake control assist) may or may not operate properly under the following conditions: On roads where there are multiple parallel lane markers; lane markers that are faded or not painted clearly; yellow painted lane markers; non-standard lane markers or covered with water, dirt or snow, etc. On roads where discontinued lane markers are still detectable. On roads where there are sharp curves. On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or lines remaining after road repairs (The LDP system could detect these items as lane markers.). On roads where the traveling lane merges or separates. When the vehicle's traveling direction does not align with the lane marker. When traveling close to other vehicle in front of the vehicle, which obstructs the lane camera unit detection range. When rain, snow or dirt adheres to the windshield in front of the lane camera unit. When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly. When strong light enters the lane camera unit (For example, the light directly shines on the front of the vehicle at sunrise or sunset.) When a sudden change in brightness occurs (For example, when the vehicle enters or exits a tunnel or under a bridge.)
9. While the LDP system is operating, driver may hear a sound of brake operation. This is normal and indicates that the LDP system is operating properly.

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 " .

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

Precaution for LDW/LDP System Service

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Exploded View

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

Note. Dynamic driver assistance switch is shared with DCA system.