2005 INFINITI FX35 Ignition switch

DI-84
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
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.
CAN CommunicationAKS00C6X
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with two
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
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.)

LANE DEPARTURE WARNING SYSTEM DI-89
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D E
F
G H
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J
L
M A
B
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Revision: 2005 July 2005 FX
7. Mark point at the center of the point “E” and “F”, on the line
“FW”.
CAUTION:
Make sure that “E” through “X” is equal to “F” through “X”.
8. Position the center of the right target to the point of “X”.
VEHICLE HEIGHT CHECK
Measure the wheel arch height. And calculate “Dh”.
NOTE:
“Dh” may be calculated as a minus value.
AIMING ADJUSTMENT
Operation Procedure
CAUTION:

Perform the adjustment under unloaded vehicle condition.

LDW indicator is turned off after the removal/installation, and blinks after replacement.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER on the data link connector.
3. Start the engine, wait for at least 10 seconds, and touch “START (NISSAN BASED VHCL)”.
PKIB5331E
Dh [mm] = (Hfl + Hfr) ÷ 2 − 840
where, Hfl: Front left wheel arch height [mm]
Hfr: Front right wheel arch height [mm]
SKIB3164E
PBIB1503E
SAIA0450E

DI-98
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for LDW Camera UnitAKS00C7N
NOTE:
*: Perform “ACTIVE TEST” with CONSULT-II. Refer to DI-101, "
ACTIVE TEST" .
CONSULT-II Function (LDW)AKS00C7H
DESCRIPTION
CONSULT-II performs the following functions communicating with the LDW camera unit.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-ll and CONSULT-ll CONVERTER on the data link connector.
3. Turn ignition switch ON.
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 switch (ON) 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 Pushed 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-99
SELF-DIAG RESULTS Displays malfunctioning system memorized in LDW camera unit.DI-99
DATA MONITOR Displays real-time input/output data of LDW camera unit.DI-100
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read. LAN-5
ACTIVE TEST Enables operation check of electrical loads by sending driving signal to them.DI-101
ECU PART NUMBER Displays part number of LDW camera unit. —
PBIB0196E

DI-102
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
SYSTEM ON LAMP DRIVE
Touch “ON” and “OFF” to check if LDW system ON indicator oper-
ates as follows.
NOTE:
Perform “SYSTEM ON LAMP DRIVE” when LDW system ON indica-
tor turns OFF.
INDICATOR LAMP DRIVE
Touch “ON” and “OFF” to check that LDW indicator lamp operates as
follows.
Trouble DiagnosisAKS00C7O
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Check the symptom and customer complaint.
2. Understand the outline of system. Refer to DI-82, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-103, "
Preliminary Inspection" .
4. Referring to symptom chart, repair or replace the cause of the malfunction. Refer to DI-102, "
SYMPTOM
CHART" .
5. Erase DTC and perform self-diagnosis of LDW system again. Then perform LDW system running test. Refer to DI-98, "
CONSULT-II Function (LDW)" and DI-85, "LDW SYSTEM RUNNING TEST" .
6. Does LDW system operate normally? If it operates normally, GO TO 7. If not, GO TO 4.
7. INSPECTION END
SYMPTOM CHART
“SYSTEM ON LAMP DRIVE”
Touch “ON” : LDW system ON indicator illuminates.
Touch “OFF” : LDW system ON indicator turns OFF.
SKIB1788E
“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-106, "
LDW Chime Circuit Inspection"
2.DI-109, "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-107, "
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-86, "
Camera Aiming Adjustment" .
Functions when changing the course to the turn signal direc-
tion. Perform
DI-110, "
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-109, "
LDW Indicator Lamp Circuit Inspection" .
Replace LDW camera unit, check function in the above inspection.

DI-104
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit InspectionAKS00C82
1. CHECK FUSE
Check for blown LDW camera unit fuse.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
82, "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.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW camera unit connector.
3. Check continuity between LDW camera unit harness connector R9 terminals 6 (B), 12 (B) and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair ground harness.
DTC [C1B00] CAMERA UNIT MALFAKS00C7Z
1. CHECK SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if any item other than “[C1B00] CAMERA UNIT” is displayed on self-diagnosis display.
Is any displayed?
YES >> Repair or replace applicable item.
NO >> Replace LDW camera unit.
DTC [C1B01] CAM AIMING INCMPAKS00C80
1. PREFORM CAMERA AIMING ADJUSTMENT
1. Preform camera aiming adjustment. Refer to DI-86, "
Camera Aiming Adjustment" .
2. Erase DTC and perform the LDW camera unit self-diagnosis.
Self
-diagnostic results content
No malfunction detected>>INSPECTION END
Malfunction detected>>Replace LDW camera unit.
Unit Power source Fuse No.
LDW camera unit Ignition switch (ON) 12
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal (Wire color)
R9 1 (B/R) Ground 0 V Battery voltage
SKIB1808E
6 (B) – Ground : Continuity should exist.
12 (B) – Ground
SKIB1810E

DI-106
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
LDW Chime Circuit InspectionAKS00C83
1. CHECK LDW CHIME OPERATION
Check LDW chime operation “BUZZER DRIVE” in “ACTIVE TEST”
mode with CONSULT-II.
OK or NG
OK >> LDW chime is OK. Return to DI-102, "SYMPTOM
CHART" .
NG >> GO TO 2.
2. CHECK LDW CHIME POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW chime connector.
3. Turn ignition switch ON.
4. Check voltage between warning chime harness connector M97 terminal 1 (G/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between fuse and LDW chime.
3. CHECK LDW CHIME GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between LDW chime harness connector M97 terminal 3 (B) 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 R9 terminal 3 (R/W) and LDW chime harness connector M97
terminal 2 (R/W).
3. Check continuity between LDW camera unit harness connector R9 terminal 3 (R/W) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector. “BUZZER DRIVE”
Touch “ON” : LDW chime is activated.
Touch “OFF” : LDW chime is not activated.
SKIB1787E
1 (G/R) – Ground : Battery voltage
PKIB4697E
3 (B) – Ground : Continuity should exist.
PKIB4698E
3 (R/W) – 2 (R/W) : Continuity should exist.
3 (R/W) – Ground : Continuity should not exist.
PKIB4699E

LANE DEPARTURE WARNING SYSTEM DI-107
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Revision: 2005 July 2005 FX
5. CHECK LDW CHIME OPERATION
1. Connect LDW chime connector.
2. Turn ignition switch ON.
3. Ground LDW chime harness connector M97 terminal 2 (R/W).
OK or NG
OK >> Replace LDW camera unit.
NG >> Replace LDW chime.
LDW Switch Circuit InspectionAKS00C84
1. CHECK LDW SYSTEM ON INDICATOR OPERATION
Check LDW system ON indicator operation when LDW switch is ON/OFF.
OK or NG
OK >> LDW system ON indicator is OK. Return to DI-102, "SYMPTOM CHART" .
NG >> GO TO 2.
2. CHECK LDW SWITCH SIGNAL INPUT
Check voltage between LDW camera unit harness connector R9 ter-
minal 9 (G) 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 (B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector. 2 (R/W) – Ground : LDW chime should operate.
PKIB4700E
9 (G) – Ground
When LDW switch is pushed : Approx. 0 V
When LDW switch is released : Approx. 5 V
PKIB4701E
6 (B) – Ground : Continuity should exist.
PKIB4702E

DI-108
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
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 (G) and LDW switch harness connector M96 ter-
minal 7 (G).
3. Check continuity between LDW camera unit harness connector R9 terminal 9 (G) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK LDW SWITCH
Check LDW switch.
OK or NG
OK >> Replace LDW camera unit.
NG >> Replace LDW switch.
6. CHECK LDW SYSTEM ON INDICATOR OPERATION
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 (G/R) and ground.
OK or NG
OK >> GO TO 8.
NG >> Check harness between fuse and LDW switch. 9 (G) – 7 (G) : Continuity should exist.
9 (G) – Ground : Continuity should not exist.
PKIB4703E
6 – 7
When LDW switch is
pushed : Continuity should exist.
When LDW switch is
released : Continuity should not exist.
PKIB4704E
“SYSTEM ON LAMP DRIVE”
Touch “ON” : LDW system ON indicator illuminates.
Touch “OFF” : LDW system ON indicator turns OFF.
SKIB1788E
3 (G/R) – Ground : Battery voltage
PKIB4705E