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K ELECTRICAL

B
SECTION
DRIVER INFORMATION SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 2
. DIRECTION DISPLAY ........................................ 20 . F
Precautions for Supplemental Restraint System Wiring Diagram -- COMPAS -- ............................ 21 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- KING CAB .......................................................... 21
.
SIONER" ................................................................. 2
. CREW CAB ........................................................ 22 . G
Wiring Diagrams and Trouble Diagnosis ................. 2 . Trouble Diagnoses ................................................ 23 .
METERS AND GAUGES ........................................... 3 . PRELIMINARY CHECK FOR THERMOMETER 23 ...
Component Parts and Harness Connector Location 3 ..... INSPECTION/COMPASS AND THERMOME-
H
System Description ................................................. 4
. TER .................................................................... 23
.
UNIFIED CONTROL METER ............................... 4 . Calibration Procedure for Compass ...................... 24 .
HOW TO CHANGE THE DISPLAY FOR ODO/ CORRECTION FUNCTIONS OF COMPASS ..... 24 .
TRIP METER ....................................................... 4
. INITIAL CORRECTION PROCEDURE FOR I
POWER SUPPLY AND GROUND CIRCUIT ....... 4 . COMPASS .......................................................... 24.
FUEL GAUGE ...................................................... 4
. WARNING LAMPS ................................................... 25 .
WATER TEMPERATURE GAUGE ....................... 4 . Circuit Diagram ...................................................... 25
. J
TACHOMETER .................................................... 5 . Wiring Diagram -- WARN -- ................................. 26 .
SPEEDOMETER .................................................. 5 . MODELS WITHOUT POWER DOOR LOCKS ... 28
Combination Meter .................................................. 6
. MODELS WITH POWER DOOR LOCKS ........... 29 . DI
Wiring Diagram -- METER -- ................................. 8 . Electrical Components Inspection ......................... 34 .
Meter/Gauge Operation and Odo/Trip Meter Seg- FUEL WARNING LAMP SENSOR CHECK ....... 34 .
ment Check in Diagnosis Mode .............................. 9 . OIL PRESSURE SWITCH CHECK .................... 34 .
DIAGNOSIS FUNCTION ...................................... 9 . DIODE CHECK .................................................. 34 . L
HOW TO ALTERNATE DIAGNOSIS MODE ........ 9 . WARNING CHIME .................................................... 35 .
Trouble Diagnoses ................................................ 10
. Component Parts and Harness Connector Location 35 ...
PRELIMINARY CHECK ..................................... 10 . System Description ................................................ 36 . M
SYMPTOM CHART .............................................11 . MODELS WITHOUT POWER DOOR LOCKS ... 36
POWER SUPPLY AND GROUND CIRCUIT MODELS WITH POWER DOOR LOCKS ........... 36 .
CHECK ............................................................... 12
. Wiring Diagram -- CHIME -- ................................ 38 .
INSPECTION/VEHICLE SPEED SENSOR ....... 13 . MODELS WITHOUT POWER DOOR LOCKS ... 38
INSPECTION/ENGINE REVOLUTION SIGNAL 14 ... MODELS WITH POWER DOOR LOCKS ........... 39 .
INSPECTION/FUEL LEVEL SENSOR UNIT ..... 15 . Trouble Diagnoses ................................................ 40 .
INSPECTION/THERMAL TRANSMITTER ........ 16 . SYMPTOM CHART ............................................ 40 .
Electrical Components Inspection ......................... 18 . POWER SUPPLY AND GROUND CIRCUIT
FUEL LEVEL SENSOR UNIT CHECK ............... 18 . CHECK ............................................................... 41
.
THERMAL TRANSMITTER CHECK .................. 18 . LIGHTING SWITCH INPUT SIGNAL CHECK .... 42 .
VEHICLE SPEED SENSOR SIGNAL CHECK ... 19 KEY SWITCH (INSERTED) CHECK .................. 42 .
COMPASS AND THERMOMETER ......................... 20 . SEAT BELT BUCKLE SWITCH LH CHECK ....... 44 .
System Description ............................................... 20
. FRONT DOOR SWITCH LH CHECK ................. 45 .
OUTSIDE TEMPERATURE DISPLAY ............... 20 .

DI-1
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS003LR

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 may include seat belt switch inputs and dual stage front air bag modules. If
equipped with 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 Manual.

The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.

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.
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.
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.
q The vehicle may be equipped with a passenger air bag deactivation switch which can be operated
by the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled
and will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled
and could inflate for certain types of collision. After SRS maintenance or repair, make sure the
passenger air bag deactivation switch is in the same position (ON or OFF) as when the vehicle
arrived for service.
Wiring Diagrams and Trouble Diagnosis EKS003MY

When you read wiring diagrams, refer to the following:
q GI-13, "How to Read Wiring Diagrams"
q PG-9, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
q GI-9, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any Service bulletins before servicing the vehicle.

DI-2
METERS AND GAUGES

METERS AND GAUGES PFP:24814
A
Component Parts and Harness Connector Location EKS002Q8

LKIA0151E

DI-3
METERS AND GAUGES

System Description EKS002Q9

UNIFIED CONTROL METER
q Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit.
q Digital meter is adopted for odo/trip meter.*
*The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
q Odo/trip meter segment can be checked in diagnosis mode.
q Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER

SEL253V

NOTE:
Turn the ignition switch ON to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
q through 7.5A fuse [No. 28, located in the fuse block (J/B)]
q to combination meter terminal 31.
With the ignition switch in the ON or START position, power is supplied
q through 10A fuse [No. 11, located in the fuse block (J/B)]
q to combination meter terminal 32.
Ground is supplied
q to combination meter terminal 33
q through body grounds M14 and M68.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank. The reading on the gauge is based on the
resistance of the fuel level sensor unit.
The fuel gauge is regulated by a variable ground signal supplied
q to combination meter terminal 47 for the fuel gauge
q through fuel level sensor unit terminal G (with VG33E and VG33ER) or 1 (with KA24DE)
q through fuel level sensor unit terminal E (with VG33E and VG33ER) or 4 (with KA24DE)
q through body grounds M14 and M68.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is based
on the resistance of the thermal transmitter.

DI-4
METERS AND GAUGES

The water temperature gauge is regulated by a variable ground signal supplied
q to combination meter terminal 46 A
q through thermal transmitter terminal 1.
As the temperature of the coolant increases, the resistance of the thermal transmitter decreases and the nee-
dle on the gauge moves from C to H. B

TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm). C
The tachometer is regulated by a signal
q to combination meter terminal 48 for the tachometer
q from ECM terminal 3. D
SPEEDOMETER
The vehicle speed sensor provides a voltage signal to the combination meter for the speedometer.
The voltage is supplied E
q to combination meter terminals 34 and 35
q from vehicle speed sensor terminals 1 and 2.
The unified meter control unit converts the voltage to the vehicle speed and displays it on the speedometer. F

DI-5
METERS AND GAUGES

Combination Meter EKS002QA

LKIA0144E

DI-6
METERS AND GAUGES

LKIA0145E

DI-7
METERS AND GAUGES

Wiring Diagram -- METER -- EKS002QB

WKWA0825E

DI-8
METERS AND GAUGES

Meter/Gauge Operation and Odo/Trip Meter Segment Check in Diagnosis Mode
EKS002QC A
DIAGNOSIS FUNCTION
q Odo/trip meter segment can be checked in diagnosis mode.
q Meters/gauges can be checked in diagnosis mode. B
HOW TO ALTERNATE DIAGNOSIS MODE
1. Turn ignition switch ON, while pressing and holding the trip reset switch for 0.8 second.
C
2. Push trip reset switch 3 times within 7 seconds.
3. All odo/trip meter segments should be turned on.
NOTE:
D
If some segments are not turned on, the combination meter
should be replaced.
At this point, the combination meter is in diagnosis mode.
E

SEL110V

G
4. Push odo/trip meter switch. Indication of each meter/gauge
should be as shown in figure at left while pushing odo/trip meter
switch.
H
NOTE:
It takes about 1 minute for the fuel gauge indication to sta-
bilize.
I

J
WEL900A

DI-9
METERS AND GAUGES

Trouble Diagnoses EKS002QD

PRELIMINARY CHECK

WEL835A

*1: DI-9 *2: DI-12 *3: DI-11

DI-10
METERS AND GAUGES

SYMPTOM CHART
Symptom Possible causes Repair order
A

1. Signal 1. Check vehicle speed sensor.
Speedometer and odo/trip Refer to DI-13, "INSPECTION/VEHICLE SPEED SEN-

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