2007 INFINITI FX35 turn signal

LANE DEPARTURE WARNING SYSTEM DI-79
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Revision: 2006 July 2007 FX35/FX45
System Diagram
Components Description
NOTE:
*: This indicates in a few seconds for the system check during ignition switch ON.
POWER SUPPLY AND GROUND CIRCUIT
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 12, located in the fuse block (J/B)]

to LDW camera unit terminal 1.
Ground is supplied

to LDW camera unit terminals 6 and 12

through grounds M45, M85 and M35.
SKIB1784E
Component Description
LDW camera unit Detects the lane marker by the built-in camera, gives judgement for the warning according to the
result of detection and signals from each unit, and transmits the operation signal to LDW chime and
LDW indicator lamp.
LDW switch

Selects ON/OFF of the system.

Indicates ON/OFF of the signal with LDW system ON indicator.
LDW chime Gives a warning chime according to the direction from LDW camera unit.
LDW indicator lamp Installed in combination meter, and indicates the system condition.

Blinks when LDW system is functioning to alert the driver.

Stays on when LDW system is malfunctioning.*
BCM Transmits turn indicator signal to LDW camera unit with CAN communication signal.
ABS actuator and electric unit
(control unit) Transmits vehicle speed signal to LDW camera unit with CAN communication signal.
TCM Transmits vehicle speed signal to LDW camera unit with CAN communication signal. (For detecting
incorrect speed.)

DI-92
LANE DEPARTURE WARNING SYSTEM
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for LDW Camera UnitNKS00319
NOTE:
*: Perform “ACTIVE TEST” with CONSULT-II. Refer to DI-94, "
ACTIVE TEST" .
CONSULT-II Function (LDW)NKS0031A
DESCRIPTION
CONSULT-II performs the following functions communicating with the LDW camera unit.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT
Operation Procedure
Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
Display Item
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. See the displayed result of self-diagnosis.
Te r m i n a l No. Wire
Color Item Condition
Reference Value
(Approx. [V])
Ignition
switch Operation or condition
1 B/R Ignition power supply ON — Battery voltage
3 R/W LDW chime ON LDW chime Activated
*0
Not activated 12
4 Y System ON indicator ON LDW system ON 0
OFF 12
5 R CAN-L — — —
6 B Ground ON — 0
8 G/W LDW indicator lamp ON LDW indicator lamp Illuminated
*0
Turned OFF 12
9 G LDW switch ON LDW switch Pressed 0
Released 5
10 L CAN-H — — — 11 — Shield — — —
12 B Ground ON — 0
Select diag mode Function Reference page
WORK SUPPORT Displays causes of automatic cancellation of the LDW system. DI-92
SELF-DIAG RESULTS Displays malfunctioning system memorized in LDW camera unit.DI-92
DATA MONITOR Displays real-time input/output data of LDW camera unit.DI-93
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.LAN-49
ACTIVE TEST Enables operation check of electrical loads by sending driving signal to them. DI-94
ECU PART NUMBER Displays part number of LDW camera unit. —
Operation Function Reference page
AUTO AIM Outputs camera unit, calculates dislocation of the camera, and displays adjustment
direction.
DI-80

LANE DEPARTURE WARNING SYSTEM DI-93
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Revision: 2006 July 2007 FX35/FX45
Display Item
NOTE:

When a DTC is detected, the LDW system dose not operate.

When the DTC except “ABNRML TEMP DETECT [C1B03] ” is detected, the LDW indicator lamp turns ON.

When the DTC “ABNRML TEMP DETECT [C1B03] ” is detected, the LDW system ON indicator lamp blinks.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch any of “ALL SIGNALS” and “SELECTION FROM MENU” on selection screen.
3. Touch “START”.
4. Display the data monitor.
5. If necessary, touch “COPY” in turn, and print data.
Monitored Item
Display item [Code] Malfunctions detected where... Reference
page
CAMERA UNIT MALF [C1B00] LDW camera unit internal malfunction DI-97
CAM AIMING INCMP [C1B01] LDW camera aiming is not adjusted.DI-97
VHCL SPD DATA MALF [C1B02] LDW camera unit detected different vehicle speed signal from TCM and ABS
actuator and electric unit (control unit). DI-97
ABNRML TEMP DETECT [C1B03] Temperature around LDW camera unit is excessively high.
DI-98
CAN COMM CIRCUIT [U1000] LDW camera unit detected CAN communication malfunction.DI-98
CONTROL UNIT (CAN) [U1010] LDW camera unit detected internal CAN communication circuit malfunction.DI-98
Monitored Item [unit] Description
MAIN SW [ON/OFF] Displays [ON/OFF] status as judged from LDW switch signal.
SW ON LAMP [ON/OFF] Displays [ON/OFF] status of LDW system ON indicator signal output.
INDICATE LAMP [ON/OFF] Displays [ON/OFF] status of LDW indicator signal output.
BUZZER OUTPUT [ON/OFF] Displays [ON/OFF] status of LDW chime operation signal output.
LDW INACCURAT [ON/OFF] Displays LDW camera unit status.
VHCL SPD SE [km/h] or [mph] Displays vehicle speed calculated by LDW camera unit through CAN communication [ABS
actuator and electric unit (control unit) transmits wheel sensor signal through CAN commu-
nication].
VHCL SPD AT [km/h] or [mph] Displays vehicle speed calculated from A/T vehicle speed sensor by LDW camera unit
through CAN communication (TCM transmits A/T vehicle speed sensor signal through CAN
communication).
TURN SIGNAL [OFF/LH/RH] Displays “Turn signal” status, determined from BCM through CAN communication.
LANE DETCT LH [ON/OFF] Displays left lane marker is detected.
LANE DETCT RH [ON/OFF] Displays right lane marker is detected.
CROSS LANE LH [ON/OFF] Displays vehicle is crossing left lane.
CROSS LANE RH [ON/OFF] Displays vehicle is crossing right lane.
WARN LANE LH [ON/OFF] Displays warning for left lane.
WARN LANE RH [ON/OFF] Displays warning for right lane.
VALID POS LH [VLD/INVLD] Displays lateral position for left lane marker is valid.
VALID POS RH [VLD/INVLD] Displays lateral position for right lane marker is valid.
AIMING DONE [OK/NG] Displays camera aiming done.
AIMING RESULT [OK/NOK] Displays camera aiming result.
FCTRY AIM YAW [deg] Displays camera unit installation condition.
FCTRY AIM ROL [deg] Displays camera unit installation condition.

LANE DEPARTURE WARNING SYSTEM DI-95
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Revision: 2006 July 2007 FX35/FX45
INDICATOR LAMP DRIVE
Touch “ON” and “OFF” to check that LDW indicator lamp operates as
follows.
Trouble DiagnosisNKS0031B
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Check the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-77, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-95, "
Preliminary Inspection" .
4. Referring to symptom chart, repair or replace the cause of the malfunction. Refer to DI-95, "
SYMPTOM
CHART" .
5. Erase DTC and perform self-diagnosis of LDW system again. Then perform LDW system running test. Refer to DI-92, "
CONSULT-II Function (LDW)" and DI-80, "LDW SYSTEM RUNNING TEST" .
6. Does LDW system operate normally? If it operates normally, GO TO 7. If not, GO TO 3.
7. INSPECTION END
SYMPTOM CHART
Preliminary InspectionNKS0031C
1. CHECK CAMERA LENS AND WINDSHIELD
Are camera lens and windshield contaminated with foreign materials?
YES >> Clean camera lens and windshield.
NO >> GO TO 2. “INDICATOR LAMP DRIVE”
Touch “ON” : LDW indicator lamp illuminates.
Touch “OFF” : LDW indicator lamp OFF.
PKIB4692E
Symptom Diagnoses/Service procedure
LDW system is not activated.
(LDW system ON indicator turns ON/OFF.) Perform the following inspections.
1. DI-98, "
LDW Chime Circuit Inspection"
2.DI-102, "LDW Indicator Lamp Circuit Inspection"
Replace LDW camera unit, check function in the above inspections.
LDW system does not turn ON/OFF.
(LDW system ON indicator does not turn ON/OFF.) Perform
DI-99, "
LDW Switch Circuit Inspection" .
Replace LDW camera unit, check function in the above inspection.
Warning functions are untimely.
(Example)

Warning does not function when driving on lane markers.

Warning functions when driving in a lane.

Different position from actual condition functions. Perform
DI-80, "
Camera Aiming Adjustment" .
Functions when changing the course to the turn signal direc-
tion. Perform
DI-103, "
Turn Signal Input Inspection" .
Replace LDW camera unit, check function in the above inspection.
LDW indicator lamp does not illuminate with ignition switch ON. Perform
DI-102, "
LDW Indicator Lamp Circuit Inspection" .
Replace LDW camera unit, check function in the above inspection.

DI-96
LANE DEPARTURE WARNING SYSTEM
Revision: 2006 July 2007 FX35/FX45
2. CHECK CAMERA UNIT INSTALLATION CONDITION
Check camera unit installation condition (installation position, properly tightened, a bent bracket).
OK or NG
OK >> GO TO 3.
NG >> Install camera unit properly, and adjust camera aiming. Refer to DI-80, "
Camera Aiming Adjust-
ment" .
3. CHECK VEHICLE HEIGHT
Check vehicle height. Refer to GI-51, "
Dimensions" .
Is vehicle height appropriate?
OK >> GO TO 4.
NG >> Repair vehicle to appropriate height.
4. CHECK LDW CAMERA UNIT (CONSULT-II)
Perform self-diagnosis of LDW camera unit. Refer to DI-92, "
CONSULT-II Function (LDW)" .
Self
-diagnosis results
No malfunction detected >> GO TO 5.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
5. CHECK COMBINATION METER
Check combination meter function.
Do speedometer and turn signal indicator normal function?
YES >> INSPECTION END
NO >> Check combination meter. Refer to DI-16, "
Trouble Diagnosis" .
Power Supply and Ground Circuit InspectionNKS0031D
1. CHECK FUSE
Check for blown LDW camera unit fuse.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-80, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between LDW camera unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between LDW camera unit and fuse.
Power source Fuse No.
Ignition power supply 12
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
R9 1 Ground 0 V Battery voltage
PKIC0246E

LANE DEPARTURE WARNING SYSTEM DI-99
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Revision: 2006 July 2007 FX35/FX45
3. CHECK LDW CHIME GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between LDW chime harness connector M97 terminal 3 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK LDW CHIME SIGNAL CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector (A) R9 terminal 3 and LDW chime harness connector (B) M97
terminal 2.
3. Check continuity between LDW camera unit harness connector (A) R9 terminal 3 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK LDW CHIME OPERATION
1. Connect LDW chime connector.
2. Turn ignition switch ON.
3. Apply ground to LDW chime terminal 2.
4. Check condition of the LDW chime.
OK or NG
OK >> Replace LDW camera unit.
NG >> Replace LDW chime.
LDW Switch Circuit InspectionNKS0031L
1. CHECK OPERATION OF LDW SYSTEM ON INDICATOR
1. Turn ignition switch ON.
2. Check LDW system ON indicator operation when LDW switch is ON/OFF.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2. 3 – Ground : Continuity should exist.
PKIC0249E
3 – 2 : Continuity should exist.
3 – Ground : Continuity should not exist.
SKIB8694E
2 – Ground : LDW chime should operate.
PKIC0251E

DI-100
LANE DEPARTURE WARNING SYSTEM
Revision: 2006 July 2007 FX35/FX45
2. CHECK LDW SWITCH SIGNAL INPUT
Check voltage between LDW camera unit harness connector R9 ter-
minal 9 and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
3. CHECK LDW SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Check continuity between LDW switch connector M96 terminal 6 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK LDW SWITCH SIGNAL INPUT CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector R9 terminal 9 and LDW switch harness connector M96 terminal
7.
3. Check continuity between LDW camera unit harness connector R9 terminal 9 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK LDW SWITCH
Check LDW switch. Refer to
OK or NG
OK >> Replace LDW camera unit.
NG >> Replace LDW switch. 9 – Ground
When LDW switch is pressed : Approx. 0 V
When LDW switch is released : Approx. 5 V
PKIC0252E
6 – Ground : Continuity should exist.
PKIB4702E
9 – 7 : Continuity should exist.
9 – Ground : Continuity should not exist.
PKIB4703E

LANE DEPARTURE WARNING SYSTEM DI-101
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Revision: 2006 July 2007 FX35/FX45
6. CHECK OPERATION OF LDW SYSTEM ON INDICATOR
Check LDW system ON indicator operation “SYSTEM ON LAMP
DRIVE” in “ACTIVE TEST” mode with CONSULT-II.
NOTE:
Perform “SYSTEM ON LAMP DRIVE” when LDW system ON indica-
tor turns OFF.
OK or NG
OK >> Replace LDW camera unit.
NG >> GO TO 7.
7. CHECK LDW SYSTEM ON INDICATOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Turn ignition switch ON.
4. Check voltage between LDW switch harness connector M96 ter- minal 3 and ground.
OK or NG
OK >> GO TO 8.
NG >> Check harness between fuse and LDW switch.
8. CHECK LDW SYSTEM ON INDICATOR SIGNAL CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector R9 terminal 4 and LDW switch harness connector M96 terminal
2.
3. Check continuity between LDW camera unit harness connector R9 terminal 4 and ground.
OK or NG
OK >> GO TO 9.
NG >> Repair harness or connector. “SYSTEM ON LAMP DRIVE”
Touch “ON” : LDW system ON indicator illuminates.
Touch “OFF” : LDW system ON indicator turns OFF.
SKIB1788E
3 – Ground : Battery voltage
PKIB4705E
4 – 2 : Continuity should exist.
4 – Ground : Continuity should not exist.
PKIB4706E