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DRIVER INFORMATION SYSTEM

K ELECTRICAL

DRIVER INFORMATION SYSTEM
SECTION DI B

E
CONTENTS
PRECAUTIONS ......................................................... 3 . Fuel Level Sensor Inspection ................................ 18 . F
Precautions for Supplemental Restraint System The Fuel Gauge Pointer Fluctuates, Indicator
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Wrong Value or Varies ........................................... 19 .
SIONER" ................................................................. 3
. The Fuel Gauge Does Not Move to FULL Position 20 ... G
Wiring Diagrams and Trouble Diagnosis ................. 3 . Ambient Temperature Signal Inspection [Without
COMBINATION METERS .......................................... 4 . Auto A/C] ............................................................... 20
.
System Description ................................................. 4 . Ambient Temperature Signal Inspection [With Auto
H
UNIFIED METER CONTROL UNIT ..................... 4 . A/C] ........................................................................ 22
.
POWER SUPPLY AND GROUND CIRCUIT ....... 4 . Electrical Components Inspection ......................... 23 .
ODO/TRIP METER, CLOCK AND AMBIENT FUEL LEVEL SENSOR UNIT CHECK ............... 23 .
TEMPERATURE INDICATOR .............................. 4 . AMBIENT SENSOR CHECK .............................. 23 . I
SPEEDOMETER .................................................. 4 . Removal and Installation for Combination Meter ... 24
TACHOMETER .................................................... 5 . REMOVAL .......................................................... 24 .
WATER TEMPERATURE GAUGE ....................... 5 . INSTALLATION .................................................. 24 . J
FUEL GAUGE ...................................................... 5 . Disassembly and Assembly for Combination Meter 24 ...
AMBIENT TEMPERATURE INDICATOR ............. 5 . DISASSEMBLY .................................................. 24 .
CAN Communication ............................................... 6 . ASSEMBLY ........................................................ 24 .
DI
SYSTEM DESCRIPTION ..................................... 6 . WARNING LAMPS ................................................... 25 .
CAN COMMUNICATION UNIT ............................ 6 . Schematic .............................................................. 25
.
Arrangement of Combination Meter ........................ 7 . Wiring Diagram -- WARN -- ................................. 26 .
Component Parts and Harness Connector Location 8 ..... AWD MODELS ................................................... 26 . L
Schematic ............................................................... 9
. 2WD MODELS ................................................... 32 .
Wiring Diagram -- METER -- ............................... 10 . Electrical Components Inspection ......................... 38 .
AWD MODELS ................................................... 10 . OIL PRESSURE SWITCH CHECK .................... 38 . M
2WD MODELS ................................................... 12 . DIODE CHECK .................................................. 38 .
Terminals and Reference Value for Combination A/T INDICATOR ....................................................... 39 .
Meter ..................................................................... 14
. Wiring Diagram -- AT/IND -- ................................ 39 .
Self-Diagnosis Mode of Combination Meter .......... 14 . AWD MODELS ................................................... 39 .
SELF-DIAGNOSIS FUNCTION ......................... 14 . 2WD MODELS ................................................... 40 .
OPERATION PROCEDURE .............................. 14 . A/T Indicator Does Not Illuminate .......................... 41 .
Trouble Diagnosis ................................................. 15 . WARNING CHIME .................................................... 42 .
HOW TO PROCEED WITH TROUBLE DIAGNO- System Description ................................................ 42 .
SIS ..................................................................... 15
. POWER SUPPLY AND GROUND CIRCUIT ...... 42 .
PRELIMINARY CHECK ..................................... 15 . IGNITION KEY WARNING CHIME .................... 42 .
SYMPTOM CHART ............................................ 16 . LIGHT WARNING CHIME .................................. 42 .
Power Supply and Ground Circuit Inspection ....... 16 . SEAT BELT WARNING CHIME .......................... 42 .
Vehicle Speed Signal Inspection (With VDC) ........ 17 . Component Parts and Harness Connector Location 43 ...
Vehicle Speed Signal Inspection (Without VDC) ... 17 Schematic .............................................................. 44
.
Engine Speed Signal Inspection ........................... 17 . Wiring Diagram -- CHIME -- ................................ 45 .
Engine Coolant Temperature Signal Inspection .... 18 . Terminals and Reference Value for Smart Entrance

Revision: 2005 March DI-1 2005 X-Trail
Control Unit ............................................................ 48
. Key Switch Insert Signal Inspection .......................51 .
Trouble Diagnosis .................................................. 48 . Seat Belt Buckle Switch Input Signal Inspection
HOW TO PROCEED WITH TROUBLE DIAGNO- [Without Power Seat] .............................................52 .
SIS ...................................................................... 48
. Seat Belt Buckle Switch Input Signal Inspection
SYMPTOM CHART ............................................ 48 . [With Power Seat] ..................................................54 .
Power Supply and Ground Circuit Inspection ........ 48 . CLOCK .....................................................................56
.
Front Door Switch (Driver Side) Inspection ........... 49 . Wiring Diagram -- CLOCK -- ................................56 .
Lighting Switch Input Signal Inspection ................. 51 .

Revision: 2005 March DI-2 2005 X-Trail
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AKS00B9V

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
q 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. D
q 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. E
q 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. F
Wiring Diagrams and Trouble Diagnosis AKS00B9W

When reading wiring diagrams, refer to the following: G
q GI-14, "How to Read Wiring Diagrams" in GI section
q PG-2, "POWER SUPPLY ROUTING" for power distribution circuit in PG section
When performing trouble diagnosis, refer to the following: H
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
I

Revision: 2005 March DI-3 2005 X-Trail
COMBINATION METERS

COMBINATION METERS PFP:24814

System Description AKS00B9X

UNIFIED METER CONTROL UNIT
q Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit, which is built into the combination meter.
q Digital meter is adopted for odo/trip meter*.
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
q Meter/gauge and odo/trip meter segments can be checked in diagnosis mode.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
q through 10 A fuse [No. 28, located in the fuse block (J/B)]
q to combination meter terminal 1.
With the ignition switch in the ON or START position, power is supplied
q through 10 A fuse [No. 11, located in the fuse block (J/B)]
q to combination meter terminal 2.
Ground is supplied
q to combination meter terminal 21
q through grounds M27 and M70.
ODO/TRIP METER, CLOCK AND AMBIENT TEMPERATURE INDICATOR
q The vehicle speed signal and the memory signals from the meter memory circuit are processed by the
combination meter and the mileage is displayed.
q Ambient temperature indicator indicates signal from ambient sensor processed by the combination meter.
How to Change The Display
Depressing the odo/trip meter switch toggles the mode in the following order.

SKIA8917E

q The odo/trip meter display mode toggling and trip display resetting can be identified by the amount of time
that elapses from pressing the odo/trip meter switch to releasing it.
q When resetting with trip A displayed, only trip A display is reset. (The same way for trip B.)
SPEEDOMETER
VDC/TCS/ABS control unit [with VDC] or ABS actuator and electric unit (control unit) [without VDC] provides a
vehicle speed signal to the combination meter for the speedometer with CAN communication line.

Revision: 2005 March DI-4 2005 X-Trail
COMBINATION METERS

TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm). A
ECM provides an engine speed signal to combination meter for tachometer with CAN communication line.
WATER TEMPERATURE GAUGE
B
The water temperature gauge indicates the engine coolant temperature.
ECM provides an engine coolant temperature signal to combination meter for water temperature gauge with
CAN communication line.
C
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied D
q from grounds M27 and M70
q through terminals 1 and 4 of the fuel level sensor unit
q through terminals 3 and 1 of the sub fuel level sensor unit and E
q to combination meter terminal 8 for the fuel gauge.
AMBIENT TEMPERATURE INDICATOR
F
The ambient temperature is indicated by the signal from ambient sensor.
Combination meter inputs voltage conversed from resistance which ambient sensor detects.
Indication range is between -30 and 55

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