Nissan Pathfinder (2007 year). Instruction — part 135
PRECAUTION
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2007 Pathfinder
PRECAUTION
PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00FXT
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
Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
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COMBINATION METERS
2007 Pathfinder
COMBINATION METERS
PFP:24814
Component Parts and Harness Connector Location
EKS00FXV
System Description
EKS00FXW
UNIFIED METER CONTROL UNIT
●
Speedometer, odometer, tachometer, fuel gauge, oil pressure gauge, voltage gauge, and water tempera-
ture gauge are controlled by the unified meter control unit, which is built into the combination meter.
●
Warning indicators are controlled by signals drawn from the CAN communication system, BCM (body con-
trol module), and components connected directly to the combination meter.
●
Digital meter is adopted for odometer/trip meters*, as well as the A/T position indicator display.
*The record of the odometer is kept even if the battery cable is disconnected.
●
Odometer/trip meters and A/T indicator segments can be checked in diagnosis mode.
●
Meters/gauges can be checked in diagnosis mode.
NOTE:
Under the following conditions, the meters will perform a homing function. The meter pointers will move down
slightly and then move back to the resting position. This is a normal design condition.
●
Approximately 60 seconds after turning the ignition switch from the ON to the OFF position
●
If the battery is disconnected and then reconnected
Illumination control
The unified meter control unit outputs the speedometer, odometer/trip meters, tachometer, oil pressure gauge,
voltage gauge, A/T indicator, fuel and temperature gauge lighting when the ignition switch is turned on. When
the lighting switch is turned on, the illumination control switch can be used to adjust the brightness of the com-
bination meter illumination and the odometer/trip meters and meter illumination.
1.
Combination meter M24
2.
Fuel level sensor unit and fuel pump
C5 (view with fuel tank removed)
3.
ECM E16 (view with ECM cover
removed)
A. Coolant reservoir
4.
ABS actuator and electric unit (con-
trol unit) E125
5.
Oil pressure switch E208
A. Oil pan (upper)
6.
IPDM E/R E122
WKIA5727E
COMBINATION METERS
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2007 Pathfinder
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
●
through 10A fuse [No.19, located in the fuse block (J/B)]
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to combination meter terminal 3.
With the ignition switch in the ON or START position, power is supplied
●
through 10A fuse [No.14, located in the fuse block (J/B)]
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to combination meter terminal 16.
Ground is supplied
●
to combination meter terminals 13 and 23
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through body grounds M57, M61 and M79.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides an engine coolant temperature signal to combination meter via CAN communication lines.
ENGINE OIL PRESSURE GAUGE
The engine oil pressure gauge indicates whether the engine oil pressure is low or normal.
The oil pressure gauge is controlled by the IPDM E/R (intelligent power distribution module engine room). Low
oil pressure causes oil pressure switch terminal 1 to provide ground to IPDM E/R terminal 42. The IPDM E/R
then signals the combination meter (unified meter control unit) via CAN communication lines and a low oil
pressure indication is displayed by the oil pressure gauge.
VOLTAGE GAUGE
The voltage gauge indicates the battery/charging system voltage.
The voltage gauge is regulated by the unified meter control unit.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to combination meter via CAN communication lines.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the unified meter control unit and a variable resistor signal supplied
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to combination meter terminal 9
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through fuel level sensor unit and fuel pump terminal 2
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through fuel level sensor unit and fuel pump terminal 5
●
from combination meter terminal 4.
SPEEDOMETER
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN
communication lines.
ODO/TRIP METER
The vehicle speed signal and the memory signals from the meter memory circuit are processed by the combi-
nation meter and the mileage is displayed.
How to Change the Display
Refer to Owner's Instruction for odo/trip meter operating instructions.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to
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COMBINATION METERS
2007 Pathfinder
Arrangement of Combination Meter
EKS00FXX
WKIA4888E
COMBINATION METERS
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2007 Pathfinder
Internal Circuit
EKS00FXY
WKWA5295E
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COMBINATION METERS
2007 Pathfinder
Wiring Diagram — METER —
EKS00FXZ
WKWA5296E
COMBINATION METERS
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2007 Pathfinder
WKWA5297E
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COMBINATION METERS
2007 Pathfinder
Combination Meter Harness Connector Terminal Layout
EKS00IZV
Terminals and Reference Values for Combination Meter
EKS00FY0
LKIA0698E
Terminal
No.
Wire
color
Item
Condition
Reference value (V)
(Approx.)
Ignition
switch
Operation or condition
3
R/Y
Battery power supply
OFF
—
Battery voltage
4
B/Y
Fuel level sensor ground
ON
—
0
9
BR
Fuel level sensor signal
—
—
Refer to
11
P
CAN-L
—
—
—
12
L
CAN-H
—
—
—
13
GR
Ground
—
—
0
16
W/G
Ignition switch ON or
START
ON
—
Battery voltage
22
BR
Illumination control switch
—
Lighting switch ON
Refer to
23
B
Ground
—
—
0
24
V
Seat belt buckle switch
LH
ON
Unfastened (ON)
0
Fastened (OFF)
Battery voltage
31
G
Parking Brake switch
ON
Parking brake applied
0
Parking brake released
Battery voltage
32
SB
Brake fluid level switch
ON
Brake fluid level low
0
Brake fluid level normal
Battery voltage
33
LG
Stop lamp switch
ON
Brake pedal depressed
Battery voltage
Brake pedal released
0
34
L
Washer fluid level switch
ON
Washer fluid level low
0
Washer fluid level normal
Battery voltage
39
G
Security indicator input
OFF
Security indicator ON
0
Security indicator OFF
Battery voltage
40
LG
Seat belt buckle switch
RH
ON
Unfastened (ON)
0
Fastened (OFF)
Battery voltage
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