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DI-28
UNIFIED METER AND A/C AMP
Revision: 2006 July 2007 FX35/FX45
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS00300
For the unified meter and A/C amp., the signal required for controlling the combination meter are inte-
grated in the A/C auto amp.
The unified meter and A/C amp. corresponds to a CONSULT-II function (self-diagnosis results, CAN diag-
nosis support monitor, data monitor).
COMBINATION METER CONTROL FUNCTION
Unified meter and A/C amp. receives necessary information for combination meter from each unit by CAN
communication.
Unified meter and A/C amp. transmits a signals with communication line (TX, RX) between unified meter
and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-8,
"FAIL-SAFE" . Unit Input Output
Unified meter and A/C amp.
Seat belt buckle switch signal (Driver's side)
Parking brake signal
Illumination control nighttime required signal
Refuel status signal
Low-fuel warning lamp condition signal
Combination meter receive error signal
Delivery destination data signal
Combination meter specifications signal
Vehicle speed signal (8-pulse)
Engine speed signal
Engine coolant temperature signal
Fuel level sensor signal (resistance value)
Malfunction indicator lamp signal
ABS warning lamp signal
Low tire pressure warning lamp signal
Run-flat tire warning lamp signal
Brake warning lamp signal
A/T CHECK warning lamp signal
ICC warning lamp signal
Oil pressure switch signal
Door switch signal
AWD warning lamp signal
Key warning lamp signal
VDC OFF indicator lamp signal
SLIP indicator lamp signal
CRUISE indicator lamp signal
SET indicator lamp signal
High beam request signal
Turn indicator signal
Snow mode switch signal
ICC system display signal
Shift position indicator signal
Manual mode indicator signal
Manual mode gear position signal
CAN communication condition signal of A/T
Position lights request signal
Buzzer output signal
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DI-32
UNIFIED METER AND A/C AMP
Revision: 2006 July 2007 FX35/FX45
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG- NALS” is selected, main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni- tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit] MAIN
SIGNALS SELECTION
FROM MENU Contents
SPEED METER [km/h] or [mph] X X Displays the value of vehicle speed signal, which is input from
ABS actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X X Displays the value of vehicle speed signal, which is transmitted
to each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from
ECM.
W TEMP METER [ °C] or [ °F] X X Displays the value of engine coolant temperature signal, which
is input from ECM.
FUEL METER [lit.] X X Displays the value, which processes a resistance signal from
fuel gauge.
DISTANCE [km] or [mile] X X Displays the value, which is calculated by vehicle speed signal
from ABS actuator and electric unit (control unit), fuel gauge and
fuel consumption from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF]
*1X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of VDC OFF indicator lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF]
*2X Indicates [ON/OFF] condition of brake warning lamp.
KEY G W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (green).
Page 1284 of 4366
DI-38
WARNING LAMPS
Revision: 2006 July 2007 FX35/FX45
WARNING LAMPSPFP:24814
System DescriptionNKS003HX
OIL PRESSURE WARNING LAMP
Oil pressure warning lamp turns ON when reducing engine oil pressure abnormally.
IPDM E/R reads oil pressure switch signal from oil pressure switch, and transmits the signal to unified
meter and A/C amp. through BCM with CAN communication.
Unified meter and A/C amp. transmits oil pressure switch signal to combination meter with communication
line.
Combination meter turns oil pressure warning lamp ON with received oil pressure switch signal.
PKIB7655E
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WARNING LAMPS DI-49
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 July 2007 FX35/FX45
6. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Operate ignition switch with “OIL W/L” of “DATA MONITOR” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 7.
7. CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-II.
2. Select “DATA MONITOR” of “SIGNAL BUFFER”.
3. Operate ignition switch with “OIL PRESS SW” of “DATA MONI- TOR” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and
Installation of IPDM E/R" .
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)NKS0030F
NOTE:
For oil pressure inspection, refer to LU-8, "
OIL PRESSURE CHECK" (VQ35DE) or LU-25, "OIL PRESSURE
CHECK" (VK45DE)
1. CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-21, "
Auto Active Test" .
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5. “OIL W/L”
When ignition switch is in ON
position (Engine stopped) : ON
When engine running : OFF
PKIA2064E
“OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped) : ON
When engine running : OFF
SKIA8709E
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WARNING LAMPS DI-51
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 July 2007 FX35/FX45
Component InspectionNKS0030G
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Condition
Oil pressure [kPa (kg/cm2 , psi)] Continuity
Engine stopped Less than 29 (0.3, 4) Yes Engine running More than 29 (0.3, 4) No
ELF0044D
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DI-80
LANE DEPARTURE WARNING SYSTEM
Revision: 2006 July 2007 FX35/FX45
Action TestNKS00314
LDW SYSTEM RUNNING TEST
WARNING:
Be careful when performing road test.
Understand “Precautions” and “System Description” well before the road test. Refer to DI-77,
"Precautions for Lane Departure Warning (LDW) system" and DI-77, "System Description" .
Function Check
Check the LDW system operation according to the condition that the warning function works. Refer to DI-77,
"LDW SYSTEM OPERATION" .
Camera Aiming AdjustmentNKS00315
OUTLINE
Adjust the camera aiming every time the LDW camera unit is removed or installed.
CAUTION:
Place the vehicle on the level ground when the camera aiming adjustment is operated.
Follow the CONSULT-II when adjusting the camera aiming. (Camera aiming adjustment cannot be
operated without CONSULT-II.)
PREPARATION
Keep all tires inflated to correct pressures. Adjust the tire pressure to the specified pressure value.
There is no-load in vehicle. Check if coolant, engine oil are filled up to correct level and fuel tank is full.
Shift the gear into “P” position and release the parking brake.
Clean the windshield.
NOTE:
Do not place anything reflective on the upper surface of instrument panel.
TARGET SETTING
Preparation Aiming Adjustment Jig
For aiming adjustment, prepare the following jigs and targets.
PKIB4693E
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![INFINITI FX35 2007 Service Manual 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.
INFINITI FX35 2007 Service Manual 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.
](/manual-img/42/57018/w960_57018-1399.png)
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
Page 1458 of 4366
![INFINITI FX35 2007 Service Manual EC-82
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2006 July 2007 FX35/FX45
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wire as shown, and attach timing light clamp t INFINITI FX35 2007 Service Manual EC-82
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2006 July 2007 FX35/FX45
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wire as shown, and attach timing light clamp t](/manual-img/42/57018/w960_57018-1457.png)
EC-82
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2006 July 2007 FX35/FX45
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wire as shown, and attach timing light clamp to this
wire.
3. Check ignition timing.
Procedure After Replacing ECMNBS006SE
When replacing ECM, the following procedure must be performed.
1. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to BL-207
.
2. Perform EC-82, "
VIN Registration" .
3. Perform EC-83, "
Accelerator Pedal Released Position Learning" .
4. Perform EC-83, "
Throttle Valve Closed Position Learning" .
5. Perform EC-83, "
Idle Air Volume Learning" .
VIN RegistrationNBS003LS
DESCRIPTION
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).
OPERATION PROCEDURE
With CONSULT-II
1. Check the VIN of the vehicle and note it. Refer to GI-49, "IDENTIFICATION INFORMATION" .
2. Turn ignition switch ON and engine stopped.
PBIB1573E
SEF166Y
PBIB1602E