2007 INFINITI FX35 abs

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.)

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-97
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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, 12 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair ground harness.
DTC [C1B00] CAMERA UNIT MALFNKS0031E
1. CHECK LDW CAMERA UNIT
1. Perform self-diagnosis of LDW camera unit.
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 INCMPNKS0031F
1. PREFORM CAMERA AIMING ADJUSTMENT
1. Preform camera aiming adjustment. Refer to DI-80, "
Camera Aiming Adjustment" .
2. Erase DTC and perform the LDW camera unit self-diagnosis.
Self
-diagnosis results
No malfunction detected >> INSPECTION END
Malfunction detected >> Replace LDW camera unit.
DTC [C1B02] VHCL SPD DATA MALFNKS0031G
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) (CONSULT-II)
Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to BRC-24, "
CONSULT-II Func-
tions (ABS)" .
Self
-diagnosis results
No malfunction detected >> GO TO 2.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
2. CHECK TCM (CONSULT-II)
Perform self-diagnosis of TCM. Refer to AT- 9 0 , "
CONSULT-II Function (A/T)" .
Self
-diagnosis results
No malfunction detected >> Replace LDW camera unit.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts. 6 – Ground
: Continuity should exist.
12 – Ground
PKIC0247E

DI-112
CLOCK
Revision: 2006 July 2007 FX35/FX45
Removal and Installation of ClockNKS0031S
REMOVAL
1. Remove A/T selecter lever knob. Refer to IP-12, "(D) A/T Select Lever Knob" .
2. Remove A/T console finisher. Refer to IP-12, "
(F) A/T Console Finisher" .
3. Remove instrument clock finisher. Refer to IP-12, "
(E) Instrument Clock Finisher" .
4. Remove tabs (A), and remove clock (1) from instrument clock finisher (2).
INSTALLATION
Installation is the reverse order of removal.
SKIB8488E

ON BOARD REFUELING VAPOR RECOVERY (ORVR) EC-45
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)PFP:00032
System DescriptionNBS003LE
From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:

Put a “CAUTION: FLAMMABLE” sign in workshop.

Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.

Be sure to furnish the workshop with a CO2 fire extinguisher.
CAUTION:

Before removing fuel line parts, carry out the following procedures:
–Put drained fuel in an explosion-proof container and put lid on securely.
–Release fuel pressure from fuel line. Refer to EC-85, "FUEL PRESSURE RELEASE" .
–Disconnect negative battery cable.

Always replace O-ring when the fuel gauge retainer is removed.

Do not kink or twist hose and tube when they are installed.

Do not tighten hose and clamps excessively to avoid damaging hoses.

After installation, run engine and check for fuel leaks at connection.

Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.
PBIB1068E

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-59
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EC
Revision: 2006 July 2007 FX35/FX45
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, absolute throttle position, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-121, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was stored in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
ory is erased. Procedures for clearing the ECM memory are described in EC-66, "
HOW TO ERASE EMIS-
SION-RELATED DIAGNOSTIC INFORMATION" .
SYSTEM READINESS TEST (SRT) CODE
System Readiness Test (SRT) code is specified in Service $01 of SAE J1979.
As part of an enhanced emissions test for Inspection & Maintenance (I/M), certain states require the status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major emission systems and com-
ponents. Completion must be verified in order for the emissions inspection to proceed.
If a vehicle is rejected for a State emissions inspection due to one or more SRT items indicating “INCMP”, use
the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MIL is ON during the state emissions inspection, the vehicle is also returned to the customer untested even
though the SRT indicates “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

TROUBLE DIAGNOSIS EC-97
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EC
Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection.
(continued on next page) ECM 22333333333
EC-476
,
EC-480
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-180
Park/neutral position (PNP) switch circuit 3 3 3 3 3 EC-488
Refrigerant pressure sensor circuit 2 3 3 4EC-663
Electrical load signal circuit 3EC-627
Air conditioner circuit223333333 3 2 AT C - 4 0
ABS actuator and electric unit (control unit) 4 BRC-11
SYMPTOM
Reference
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HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

EC-122
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
× : Applicable
VEHICL SPEED
[km/h] or [mph]

The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH-P/S [%]

The throttle operating angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]

The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE
[ ° C] or [ °F]

The intake air temperature at the moment a malfunction is detected is displayed.
Freeze frame data
item* Description
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
ENG SPEED [rpm] ××

Indicates the engine speed computed from
the signal of the crankshaft position sensor
(POS) and camshaft position sensor
(PHASE).
Accuracy becomes poor if engine
speed drops below the idle rpm.

If the signal is interrupted while the
engine is running, an abnormal
value may be indicated.
MAS A/F SE-B1 [V] ××

The signal voltage of the mass air flow sensor
is displayed.
When the engine is stopped, a cer-
tain value is indicated.
B/FUEL SCHDL
[msec] ×

Base fuel schedule indicates the fuel injection
pulse width programmed into ECM, prior to
any learned on board correction.
A/F ALPHA-B1 [%] ×

The mean value of the air-fuel ratio feedback
correction factor per cycle is indicated.

When the engine is stopped, a cer-
tain value is indicated.

This data also includes the data for
the air-fuel ratio learning control.
A/F ALPHA-B2 [%]
×
COOLAN TEMP/S
[ ° C] or [ °F] ××

The engine coolant temperature (determined
by the signal voltage of the engine coolant
temperature sensor) is displayed.

When the engine coolant tempera-
ture sensor is open or short-cir-
cuited, ECM enters fail-safe mode.
The engine coolant temperature
determined by the ECM is displayed.
A/F SEN1 (B1) [V] ××

The A/F signal computed from the input signal
of the Air fuel ratio (A/F) sensor 1 is displayed.
A/F SEN1 (B2) [V] ×
HO2S2 (B1) [V] ×

The signal voltage of the heated oxygen sen-
sor 2 is displayed.
HO2S2 (B2) [V] ×
HO2S2 MNTR(B1)
[RICH/LEAN] ×

Display of heated oxygen sensor 2 signal:
RICH: means the amount of oxygen after
three way catalyst is relatively small.
LEAN: means the amount of oxygen after
three way catalyst is relatively large.

When the engine is stopped, a cer-
tain value is indicated.
HO2S2 MNTR(B2)
[RICH/LEAN] ×
VHCL SPEED SE
[km/h] or [mph] ××

The vehicle speed computed from the vehicle
speed signal sent from combination meter is
displayed.
BATTERY VOLT
[V] ××

The power supply voltage of ECM is dis-
played.
ACCEL SEN 1 [V] ××

The accelerator pedal position sensor signal
voltage is displayed.
ACCEL SEN 2 signal is converted
by ECM internally. Thus, it differs
from ECM terminal voltage signal.
ACCEL SEN 2 [V]
×