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DRIVER INFORMATION SYSTEM
K ELECTRICAL
SECTION DI B
DRIVER INFORMATION SYSTEM
C
D
E
CONTENTS
F
PRECAUTIONS ......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” ................................................................. 3
Maintenance Information ......................................... 3
RHD MODELS ..................................................... 3
LHD MODELS ...................................................... 3
COMBINATION METERS .......................................... 4
Component Parts and Harness Connector Locatio ..... 4
System Description ................................................. 4
UNIFIED METER CONTROL UNIT ..................... 4
POWER SUPPLY AND GROUND CIRCUIT ....... 4
SPEEDOMETER .................................................. 4
TACHOMETER .................................................... 4
LOW WATER TEMPERATURE INDICATOR
LAMP, HIGH WATER TEMPERATURE WARN-
ING LAMP ............................................................ 4
FUEL GAUGE ...................................................... 5
ODO/TRIP METER .............................................. 5
CAN Communication ............................................... 5
SYSTEM DESCRIPTION ..................................... 5
CAN Communication Unit ....................................... 5
Arrangement of Combination Meter ........................ 6
Schematic ............................................................... 7
Wiring Diagram — METER — ................................. 8
Terminals and Reference Value for Combination
Meter ....................................................................... 9
Combination Meter Self-Diagnosis ........................ 10
PERFORMING SELF-DIAGNOSIS MODE ........ 10
Trouble Diagnoses ................................................ 13
PRELIMINARY CHECK ..................................... 13
SYMPTOM CHART ............................................ 15
Check Power Supply and Ground Circuit .............. 15
Check Vehicle Speed Signal ................................. 16
Check Engine Revolution Signal ........................... 17
Check Fuel Level Sensor Signal ........................... 17
Check Water Temperature Warning/indicator Lam ... 19
Check Fuel Gauge Fluctuation .............................. 19
Fuel Gauge Does Not Move to FULL position ...... 19
Check Electrical Components ............................... 19
CHECK FUEL LEVEL SENSOR UNIT ............... 19
Removal and Installation for Combination Meter ... 20
REMOVAL .......................................................... 20
INSTALLATION .................................................. 20
Disassembly and Assembly for Combination Mete... 20
DISASSEMBLY .................................................. 20
ASSEMBLY ........................................................ 20
DRIVE COMPUTER ................................................. 21
Component Parts and Harness Connector Location... 21
System Description ................................................ 21
DRIVE COMPUTER ........................................... 21
SERVICE REMINDER ........................................ 22
OIL LEVEL WARNING ....................................... 22
OUTSIDE AIR TEMPERATURE ......................... 22
CAN Communication ............................................. 23
SYSTEM DESCRIPTION ................................... 23
CAN Communication Unit ...................................... 23
Wiring Diagram — D/COMP — ............................. 24
Terminals and Reference Value for Combination
Meter ..................................................................... 26
Check Ambient Sensor Signal ............................... 26
Check Steering Wheel Switch ............................... 29
Check Oil Level sensor .......................................... 30
WARNING LAMPS ................................................... 32
System Description ................................................ 32
OIL PRESSURE WARNING LAMP .................... 32
Component Parts and Harness Connector Location... 32
Schematic .............................................................. 33
Wiring Diagram — WARN — / With Gasoline Engine
Models ................................................................... 34
Wiring Diagram — WARN — / With Diesel Engine
Models ................................................................... 40
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................ 45
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ............................................... 46
Electrical Components Inspection ......................... 47
OIL PRESSURE SWITCH CHECK .................... 47
A/T INDICATOR ....................................................... 48
System Description ................................................ 48
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FEATURE DESCRIPTION .................................. 48
Wiring Diagram — AT/IND — ................................ 49
A/T Indicator Does Not Illuminate .......................... 51
WARNING CHIME .................................................... 52
Component Parts and Harness Connector Location... 52
System Description ................................................ 53
POWER SUPPLY AND GROUND CIRCUIT ...... 53
IGNITION KEY WARNING CHIME ..................... 53
INTELLIGENTKEYSYSTEMWARNINGCHIME... 53
LIGHT WARNING CHIME .................................. 53
SEAT BELT WARNING CHIME .......................... 54
PARKING BRAKE WARNING CHIME ................ 54
CAN Communication ............................................. 54
SYSTEM DESCRIPTION ................................... 54
CAN Communication Unit ......................................54
Schematic ..............................................................55
Wiring Diagram — CHIME — ................................56
Terminals and Reference Value for BCM ...............60
Terminals and Reference Value for Combination
Meter ......................................................................62
Trouble Diagnosis ..................................................63
HOW TO PERFORM TROUBLE DIAGNOSIS ...63
PRELIMINARY INSPECTION .............................63
SYMPTOM CHART .............................................63
Check Front Door Switch (Driver Side) Signal .......63
Check Seat Belt Buckle Switch Signal ...................64
Check Parking Break Switch Signal .......................66
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PRECAUTIONS
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
A
BKS000Z9
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
l 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.
l 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.
l 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.
Maintenance Information
B
C
D
E
F
BKS000ZA
If any of following part is replaced, always replace with new* one.
If it's not (or fail to do so), the electrical system may not be operated properly.
*: New one means a virgin control unit that has never been energized on-board.
RHD MODELS
l BCM (Models without Intelligent Key system)
l Intelligent Key unit (Models with Intelligent Key system)
l ECM
l IPDM E/R
l Combination meter
l EPS control unit
LHD MODELS
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BCM (Models without Intelligent Key system)
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Intelligent Key unit (Models with Intelligent Key system)
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ECM
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COMBINATION METERS
COMBINATION METERS
PFP:24814
Component Parts and Harness Connector Location
BKS000ZD
MKIB2319E
1.
Combination meter M27
2.
ABS actuator and electronic unit
E32: With ESP
E33: Without ESP
3.
Fuel level sensor unit and fuel
pump B33
System Description
BKS0026A
UNIFIED METER CONTROL UNIT
l Speedometer, odo/trip meter, tachometer and fuel gauge are controlled by the unified meter control unit,
which is built into the combination meter.
l Warning lamp and indicator lamp are controlled by signals drawn from the CAN communication system,
BCM (body control module), and components connected directly to the combination meter.
l Odo/trip meter and A/T indicator segments can be checked in self-diagnosis mode.
l Meters/gauges can be checked in self-diagnosis mode.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
l through 10A fuse [No. 7, located in the fuse block (J/B)]
l to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied
l through 10A fuse [No. 4, located in the fuse block (J/B)]
l to combination meter terminal 28.
Ground is supplied
l to combination meter terminals 21, 22 and 23
l through grounds M21 and M66.
SPEEDOMETER
The speedometer indicates the vehicle speed.
l ABS actuator and electric unit (control unit) converses a pulse signal from wheel sensor to vehicle speed
signal, and transmit vehicle speed signal to combination meter with CAN communication.
l Combination meter converses the vehicle speed signal to angle, and commands to speedometer.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
l ECM converses a signal from crank position sensor to engine speed signal, and transmits to combination
meter with CAN communication.
l Combination meter converses the engine speed signal to angle, and commands to tachometer.
LOW WATER TEMPERATURE INDICATOR LAMP, HIGH WATER TEMPERATURE WARNING
LAMP
The water temperature warning/indicator lamp indicate the engine coolant temperature.
ECM provides a engine coolant temperature signal to combination meter for water temperature warning/indi-
cator lamp via CAN communication line.
When turn ignition switch ON, water temperature warning/indicator lamp will be ON with red color for 1 second
then blue color for1 second.
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COMBINATION METERS
After engine started,
l
A
Water temperature warning/indicator lamp will be ON with blue color while engine coolant temperature is
less than 55
°
C.
Water temperature warning/indicator lamp will be OFF with blue color, while engine coolant temperature is
more than 55
l
°
C.
B
Water temperature warning/indicator lamp will be OFF, while engine coolant temperature is between 55
°
l
Cand114
°
C.
Water temperature warning/indicator lamp will be ON with red color, while engine coolant temperature is
more than 114
C
l
°
C.
Water temperature warning/indicator lamp will be OFF with red color, while engine coolant temperature is
less than 108
l
°
C.
D
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the combination meter and a variable resistor signal supplied
l to combination meter terminal 6
l through fuel level sensor unit and fuel pump terminal 2
l through fuel level sensor unit and fuel pump terminal 4
l from combination meter terminal 24.
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 DI-21, "System Description" .
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CAN Communication
BKS000ZF
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit
J
DI
BKS0026E
L
Refer to LAN-27, "CAN Communication Unit"
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