2007 INFINITI FX35 battery

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

REAR VIEW MONITOR DI-119
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Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for Rear View Camera Control UnitNKS0031X
Te r m i n a l s
Item Condition
Reference value
Terminal
No. Wire
color Ignition
switch Operation
1 R/W Battery power supply OFF — Battery voltage
2 LG Ignition power supply ACC — Battery voltage
3 B Ground ON — Approx. 0 V
4 OR Reverse signal input ON A/T selector lever R range
position Battery voltage
A/T selector lever in other than
R range position Approx. 0 V
5 G/Y CONTROL 1 ON — Approx. 0 V
6 PU DDL — — —
8 R/W Camera power output ON A/T selector lever R range
position Approx. 6 V
9 — Camera image input (–) ON — Approx. 0 V
10 W Camera image input (+) ON A/T selector lever R range
position
11 — Shield ground — — —
12 L Composite image output ON A/T selector lever R range
position
14 R Composite image synchroni-
zation signal output ON A/T selector lever R range
position
SKIA4894E
SKIA4896E
SKIA5896E

REAR VIEW MONITOR DI-123
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Revision: 2006 July 2007 FX35/FX45
Power Supply and Ground Circuit InspectionNKS00320
1. CHECK FUSE
Make sure the fuses for rear view camera control unit is blown.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
POWER
SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between rear view camera control unit harness con-
nector M48 terminals 1, 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between rear view camera control unit and fuse.
3. CHECK REAR VIEW CAMERA CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Check continuity between rear view camera control unit harness connector M48 terminal 3 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Power source Fuse No.
Battery power supply 19 ACC power supply 6
Terminals OFF ACC
(+)
(–)
Connector Terminal
M48 1 Ground Battery voltage Battery voltage
2 Ground 0 V Battery voltage
PKIB3580E
3 – Ground : Continuity should exist.
SKIA5081E

DI-124
REAR VIEW MONITOR
Revision: 2006 July 2007 FX35/FX45
Rear View Is Not Displayed With The A/T Selector Lever In R-PositionNKS00321
1. BACK-UP LAMP INSPECTION
1. Turn ignition switch ON.
2. Shift A/T selector lever to R position.
Does back-up lamp illuminate?
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT- 1 2 9 , "
BACK-UP LAMP" in LT section.
2. CHECK REVERSE POSITION INPUT SIGNAL
With CONSULT-II
1. Select “DATA MONITOR” of “REARVIEW CAMERA”.
2. Operate ignition switch with “R POSI SIG” of “DATA MONITOR” and check operate status.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Turn ignition switch ON.
4. Shift A/T selector lever to R position.
5. Check voltage between rear view camera control unit harness connector M48 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between rear view camera control unit
and back-up lamp relay.
SKIA7147E
4 – Ground : Battery voltage
SKIA5086E

PRECAUTIONS EC-23
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS003KW
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 and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverNBS006SD
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and A/TNBS003KX
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-71, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system,
etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PIIB3706J

EC-24
[VQ35DE]
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PrecautionNBS003KY

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.

Do not disassemble ECM.

If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.

If the battery is disconnected, the following emission-
related diagnostic information will be lost within 24 hours.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–Freeze frame data
–1st trip freeze frame data
–System readiness test (SRT) codes
–Test values

When connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown in the fig-
ure.

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.

Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.

Keep engine control system parts and harness dry.
SEF289H
PBIB1164E
PBIB1512E
PBIB0090E

EC-30
[VQ35DE]
ENGINE CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
Multiport Fuel Injection (MFI) SystemNBS003L2
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.


During warm-up

When starting the engine

During acceleration

Hot-engine operation

When selector lever is changed from N to D

High-load, high-speed operation


During deceleration

During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
control Fuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch Air conditioner operation*
2
Wheel sensorVehicle speed*2

EC-32
[VQ35DE]
ENGINE CONTROL SYSTEM
Revision: 2006 July 2007 FX35/FX45
FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during each engine cycle according to the firing order. This system is used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is injected simultaneously into all six cylinders twice each engine cycle. In other words, pulse signals of
the same width are simultaneously transmitted from the ECM.
The six fuel injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being started and/or if the fail-safe system (CPU) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration, operation of the engine at excessively high speeds or oper-
ation of the vehicle at excessively high speeds.
Electronic Ignition (EI) SystemNBS003L3
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
Firing order: 1 - 2 - 3 - 4 - 5 - 6
The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition signals are transmitted to the power transistor.
During the following conditions, the ignition timing is revised by the ECM according to the other data stored in
the ECM.

At starting

During warm-up

At idle

At low battery voltage
SEF179U
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
2
Piston position
Ignition timing
control Power transistor
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Knock sensor Engine knocking
Park/neutral position (PNP) switch Gear position
Battery Battery voltage*
2
Wheel sensorVehicle speed*1