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K ELECTRICAL

B
SECTION
DRIVER INFORMATION SYSTEM C

E
CONTENTS
PRECAUTION ........................................................... 3 . Varies ..................................................................... 19
. F
Precautions for Supplemental Restraint System Fuel Gauge Does Not Move to Full-position .......... 19 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Electrical Components Inspection ......................... 20 .
SIONER" ................................................................. 3
. FUEL LEVEL SENSOR UNIT CHECK ............... 20 . G
PREPARATION .......................................................... 4 . Combination Meter ................................................ 20 .
Commercial Service Tool ........................................ 4 . REMOVAL AND INSTALLATION ....................... 20 .
COMBINATION METERS .......................................... 5 . WARNING LAMPS ................................................... 21 .
H
System Description ................................................. 5 . Schematic .............................................................. 21
.
UNIFIED METER CONTROL UNIT ..................... 5 . Wiring Diagram -- WARN -- ................................. 22 .
POWER SUPPLY AND GROUND CIRCUIT ....... 5 . Oil Pressure Warning Lamp Stays Off (Ignition
WATER TEMPERATURE GAUGE ....................... 5 . Switch ON) ............................................................ 28
. I
TACHOMETER .................................................... 5 . Oil Pressure Warning Lamp Does Not Turn Off (Oil
FUEL GAUGE ...................................................... 5 . Pressure Is Normal) ............................................... 29 .
SPEEDOMETER .................................................. 5 . Component Inspection ........................................... 29 . J
CAN COMMUNICATION SYSTEM DESCRIP- OIL PRESSURE SWITCH .................................. 29 .
TION ..................................................................... 5
. A/T INDICATOR ....................................................... 30 .
Component Parts and Harness Connector Location 6 ..... Wiring Diagram -- AT/IND -- ................................ 30 . DI
Combination Meter .................................................. 7 . Trouble Diagnosis .................................................. 32 .
CHECK ................................................................. 7
. A/T Indicator Does Not Illuminate .......................... 32 .
Circuit Diagram ....................................................... 8
. WARNING CHIME .................................................... 33 .
Wiring Diagram -- METER -- ................................. 9 . Component Parts and Harness Connector Location 33 ... L
Terminals and Reference Value for Combination System Description ................................................ 34 .
Meter ......................................................................11
. FUNCTION ......................................................... 34 .
Meter/Gauge Operation and Odo/Trip Meter ........ 12 . IGNITION KEY WARNING CHIME .................... 34 . M
SELF-DIAGNOSIS FUNCTION ......................... 12 . LIGHT WARNING CHIME .................................. 34 .
HOW TO INITIATE COMBINATION METER SEAT BELT WARNING CHIME .......................... 34 .
SELF- DIAGNOSIS MODE ................................ 12 . LOW FUEL WARNING CHIME .......................... 35 .
COMBINATION METER SELF- DIAGNOSIS CAN Communication System Description ............. 35 .
MODE FUNCTIONS .......................................... 12 . Wiring Diagram -- CHIME -- ................................ 36 .
How to Proceed With Trouble Diagnosis ............... 14 . Terminals and Reference Value for BCM .............. 38 .
Diagnosis Flow ...................................................... 14. Terminals and Reference Value for Combination
Power Supply and Ground Circuit Inspection ....... 15 . Meter ..................................................................... 39
.
Symptom Chart ..................................................... 16 . How to Proceed With Trouble Diagnosis ............... 39 .
Vehicle Speed Signal Inspection ........................... 16 . Preliminary Check ................................................. 40 .
Water Temperature Signal Inspection ................... 16 . INSPECTION FOR POWER SUPPLY AND
Engine Speed Signal Inspection ........................... 16 . GROUND CIRCUIT ............................................ 40 .
Fuel Level Sensor Unit Inspection ........................ 17 . CONSULT-II Function (BCM) ................................ 41 .
FUEL LEVEL SENSOR UNIT ............................ 17 . CONSULT-II BASIC OPERATION PROCEDURE
LOW-FUEL WARNING LAMP ............................ 17 . ... 41
Fuel Gauge Fluctuates, Indicates Wrong Value, or DATA MONITOR ................................................ 42 .

Revision: July 2006 DI-1 2006 Quest
ACTIVE TEST .................................................... 42 . SONAR BUZZER ................................................58 .
SELF-DIAGNOSTIC RESULTS .......................... 42 . REAR SONAR SYSTEM OFF SWITCH .............58 .
All Warning Chimes Do Not Operate ..................... 43 . REAR SONAR SYSTEM OFF INDICATOR ........58 .
Key Warning Chime and Light Warning Chime Do Rear Sonar Sensors ..............................................58 .
Not Operate (Seat Belt Warning Chime Does Oper- REMOVAL AND INSTALLATION ........................58 .
ate) ........................................................................ 43
. Sonar Control Unit .................................................58
.
Key Warning Chime Does Not Operate ................. 44 . REMOVAL AND INSTALLATION ........................58 .
Light Warning Chime Does Not Operate ............... 46 . INSTALLATION ..................................................58 .
Seat Belt Warning Chime Does Not Operate ........ 46 . REAR VIEW MONITOR ............................................59 .
REAR SONAR SYSTEM .......................................... 49 . Component Parts and Harness Connector Location ...59
Component Parts and Harness Connector Location 49 ... System Description ................................................60.
System Description ................................................ 49 . POWER SUPPLY AND GROUND ......................60 .
FUNCTION ......................................................... 49 . AV COMMUNICATION LINE ..............................60 .
REAR SONAR SYSTEM OFF SWITCH ............. 49 . REAR VIEW CAMERA OPERATION .................60 .
SONAR BUZZER ............................................... 50 . Schematic ..............................................................61
.
REAR SONAR SENSOR .................................... 50 . Wiring Diagram -- R/VIEW -- ...............................62 .
Wiring Diagram -- SONAR -- ............................... 51 . Terminals and Reference Value for Rear View Cam-
Terminals And Reference Value For Sonar Control era Control Unit ......................................................65
.
Unit ........................................................................ 53
. CONSULT-II Function (REARVIEW CAMERA) .....66 .
How to Proceed With Trouble Diagnosis ............... 53 . CONSULT-II BASIC OPERATION ......................66 .
Pre-diagnosis Inspection ....................................... 54 . WORK SUPPORT ..............................................67 .
SENSOR STATUS CHECK ................................ 54 . DATA MONITOR .................................................67 .
Self-diagnosis Function ......................................... 54 . Side Distance Guideline Correction .......................68 .
ENTERING DIAGNOSTICS MODE ................... 54 . SIDE DISTANCE GUIDELINE CORRECTION
REQUESTING NUMBER OF FAULT CODES PROCEDURE .....................................................68 .
MODE ................................................................. 54
. Power Supply and Ground Circuit Inspection ........70 .
REQUESTING FAULT CODES MODE .............. 55 . Rear View Is Not Displayed With The A/T Selector
IDLING OR CLEARING FAULT CODES MODE... 55 Lever In R Position .................................................71
.
Preliminary Check ................................................. 56 . Rear View Camera Control Unit .............................75 .
INSPECTION FOR POWER SUPPLY AND REMOVAL AND INSTALLATION ........................75 .
GROUND CIRCUIT ............................................ 56 . Rear View Camera .................................................75 .
Symptom Chart ...................................................... 57 . REMOVAL AND INSTALLATION ........................75 .
Component Inspection ........................................... 58 .

Revision: July 2006 DI-2 2006 Quest
PRECAUTION

PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00FEW

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. 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 C
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: D
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. E
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. F
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.
G

Revision: July 2006 DI-3 2006 Quest
PREPARATION

PREPARATION PFP:00002

Commercial Service Tool EKS00FEY

Tool name Description
Power tool Loosening bolts and nuts

PBIC0191E

Revision: July 2006 DI-4 2006 Quest
COMBINATION METERS

COMBINATION METERS PFP:24814
A
System Description EKS00FEZ

UNIFIED METER CONTROL UNIT
q Speedometer, odometer, tachometer, fuel gauge and water temperature gauge are controlled by the uni- B
fied meter control unit, which is built into the combination meter.
q 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.
C
q Digital meter is adopted for odometer.*
*The record of the odometer is kept even if the battery cable is disconnected.
q Odometer and A/T indicator segments can be checked in diagnosis mode.
D
q Meters/gauges can be checked in diagnosis mode.
Illumination control
The unified meter control unit outputs the odometer, A/T indicator, fuel and temperature gauge lighting when E
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 combination meter illumination and the odometer and meter illumination.
When the ignition switch is in the START position, the combination meter dial lighting and illumination control F
switch lighting are turned off. For additional combination meter illumination control information, refer to LT-162,
"System Description" .
POWER SUPPLY AND GROUND CIRCUIT G
Power is supplied at all times
q through 15A fuse [No.19, located in the fuse block (J/B)]
q to combination meter terminal 31. H
With the ignition switch in the ON or START position, power is supplied
q through 10A fuse [No.14, located in the fuse block (J/B)]
I
q to combination meter terminal 30.
Ground is supplied
q to combination meter terminal 32 J
q through body grounds M57, M61 and M79.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature. DI
ECM provides a water temperature signal to combination meter via CAN communication lines.
TACHOMETER
L
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 M
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
q to combination meter terminal 3
q through fuel level sensor unit and fuel pump terminal 5
q through fuel level sensor unit and fuel pump terminal 2
q from combination meter terminal 2.
SPEEDOMETER
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN
communication lines.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-24, "CAN COMMUNICATION" .

Revision: July 2006 DI-5 2006 Quest
COMBINATION METERS

Component Parts and Harness Connector Location EKS00FF0

WKIA1125E

Revision: July 2006 DI-6 2006 Quest
COMBINATION METERS

Combination Meter EKS00FF1

CHECK A

WKIA4188E

Revision: July 2006 DI-7 2006 Quest
COMBINATION METERS

Circuit Diagram EKS00FF2

WKWA3128E

Revision: July 2006 DI-8 2006 Quest
COMBINATION METERS

Wiring Diagram -- METER -- EKS00FF3

WKWA3129E

Revision: July 2006 DI-9 2006 Quest
COMBINATION METERS

WKWA3130E

Revision: July 2006 DI-10 2006 Quest
COMBINATION METERS

Terminals and Reference Value for Combination Meter EKS00FF4

A
Condition
Terminal Wire Reference value (V)
Item Ignition
No. color Operation or condition (Approx.)
switch
B
Fuel level sensor signal Refer to DI-17, "Fuel Level Sensor
2 G/Y -- --
input Unit Inspection" .
Fuel level sensor signal Refer to DI-17, "Fuel Level Sensor C
3 B -- --
output Unit Inspection" .
Refer to LT-163, "ILLUMINATION
10 R/Y Illumination control switch -- Lighting switch ON OPERATION BY LIGHTING
SWITCH" . D
27 L CAN-H -- -- --
28 P CAN-L -- -- --
E
Ignition switch ON or
30 O ON -- Battery voltage
START
31 Y/R Battery power supply OFF -- Battery voltage F
32 B/W Ground ON -- 0V

Revision: July 2006 DI-11 2006 Quest
COMBINATION METERS

Meter/Gauge Operation and Odo/Trip Meter EKS00FF5

SELF-DIAGNOSIS FUNCTION
The following items can be checked during Combination Meter Self-Diagnosis Mode.
q Gauge sweep and present gauge values.
q Gauge input signals.
q Odometer, fuel gauge and engine temperature gauge segments.
q Illumination LEDs.
q Current odometer value stored in non-volatile memory (NVM).
q DTCs.
q Estimated present battery voltage.
q Seat belt buckle switch LH status.
HOW TO INITIATE COMBINATION METER SELF- DIAGNOSIS MODE
NOTE:
Once entered, Combination Meter Self-Diagnosis Mode will function with the ignition switch in ON or START.
Combination Meter Self-Diagnosis Mode will exit upon turning the ignition switch to OFF.
To initiate Combination Meter Self-Diagnosis Mode, refer to the following procedure.
1. Turn ignition switch and high beam headlamps OFF.
2. Apply brake pedal and turn ignition switch ON.
3. Within 3 seconds of turning ignition switch ON, engage flash to pass and hold for 5 to 8 seconds.
NOTE:
If the self-diagnosis function is activated, the odometer/trip meter will display tESt.
COMBINATION METER SELF- DIAGNOSIS MODE FUNCTIONS
To interpret Combination Meter Self-Diagnosis Mode functions, refer to the following table.
Event Odometer Display Description of Test/Data Notes:
Flash-to-pass and brake
Initiating self-diagnosis
pedal held from 5 to 8 tESt
mode
seconds or until released
Flash-to-pass and brake Does not enter Combina-
pedal held more than 8 Odometer tion Meter Self-Diagnosis
seconds Mode.
Performs sweep of all
Flash-to-pass and brake gauges, then displays
Initiating self-diagnosis
pedal released within 5 to GAGE present gauge values.
mode
8 seconds Performs checksum tests
on ROM and EE.
Lights all A/T indicator,
Flash to pass engaged
odometer, fuel, and Initiating self-diagnosis
and released = next test (All segments illuminated)
engine temperature dis- mode complete
requested
play segments.
Illuminates all micro-con-
trolled lamps/LEDs
Next test requested bulb
regardless of SW configu-
ration.
Return to normal opera-
tion of all lamps/LEDs and
displays hex ROM rev. If
Next test requested rXXXX, FAIL a ROM checksum fault
exists, display alternates
between "r XXXX" and
"FAIL".
Displays hex ROM rev as
Next test requested nrXXXX
stored in NVM.

Revision: July 2006 DI-12 2006 Quest
COMBINATION METERS

Event Odometer Display Description of Test/Data Notes:
A
Hex EE level. If EE
checksum fault exists,
Next test requested EE XX, FAIL display alternates
between "EE XX" and B
"FAIL".
Hex coding of final manu-
Next test requested dtXXXX
facturing test date.
C
Displays a 16 bit DTC in
hex format. DTCs dis- Each select button press
played are those detected will cause a different DTC
in continuous operation, to be displayed until all D
Next test requested dtc, XXXX not during self-diagnosis. DTC's are displayed. If
Display alternates there are no or no more
between "dtc" and actual DTC's, proceed to next
DTC ("XXXX") or function. E
"NONE".
Raw speed value in hun- Will display "-----" if mes-
dredths of MPH. Speed- sage is not received. Will F
Next test requested XXXXX
ometer indicates present display "99999" if data
speed. received is invalid.
Raw speed value in hun- Will display "-----" if mes- G
dredths of KPH. Speed- sage is not received. Will
Next test requested XXXXX
ometer indicates present display "99999" if data
speed. received is invalid.
Tachometer value in
H
Will display "-----" if mes-
Next test requested tXXXXX RPM. Tachometer indi-
sage is not received.
cates present RPM.
Present ratioed fuel level 000-009 = Short circuit I
A/D input 1 in decimal for- 010-254 = Normal range
Next test requested F1 XXX
mat. Fuel gauge indicates 255 = Open circuit
present filtered level. --- = Missing 5 seconds
J
0xx = Normal mode xx #
of segments
Next test requested FGM XXX Fuel gauge display mode.
1xx = Expand mode xx #
of segments DI
Last temperature gauge
Will display "---"C if mes-
input value in degrees C.
sage is not received.
Next test requested XXXC Temperature gauge indi- L
Will display "999" if data
cates present filtered tem-
received is invalid.
perature.
Temperature gauge dis- X = number of display
Next test requested tGX M
play segments. segments commanded
Estimated present bat-
Next test requested BAtXX.X
tery voltage.
Seat belt buckle switch 1= Buckled
Next test requested rES -X
LH status. 0 = Unbuckled
Next test requested PA -XX to PAO -XX Not used.
Return to beginning of
Next test requested GAGE
self-diagnosis.

Revision: July 2006 DI-13 2006 Quest
COMBINATION METERS

How to Proceed With Trouble Diagnosis EKS00FF6

1. Confirm the symptom or customer complaint.
2. Perform diagnosis according to diagnosis flow. Refer to DI-14, "Diagnosis Flow" .
3. According to the symptom chart, repair or replace the cause of the symptom.
4. Does the meter operate normally? If so, go to 5. If not, go to 2.
5. Inspection End.
Diagnosis Flow EKS00FF7

1. CHECK WARNING INDICATOR ILLUMINATION
1. Turn ignition switch ON.
2. Make sure warning indicators (such as malfunction indicator lamp and oil pressure warning indicator) illu-
minate.
Do warning indicators illuminate?
YES >> GO TO 2.
NO >> Check ignition power supply system of combination meter. Refer to DI-15, "Power Supply and
Ground Circuit Inspection" .

2. CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER
Perform combination meter self-diagnosis. Refer to DI-12, "SELF-DIAGNOSIS FUNCTION" .
Does self-diagnosis function operate?
YES >> GO TO 3.
NO >> Check combination meter power supply and ground circuit. Refer to DI-15, "Power Supply and
Ground Circuit Inspection" .

3. CHECK ODOMETER, FUEL AND TEMPERATURE GAUGE OPERATION
Check segment display status of odometer, fuel and temperature
gauge.
Is the display normal?
YES >> GO TO 4.
NO >> Replace the combination meter. Refer to IP-12, "COM-
BINATION METER" .

WKIA1126E

4. CHECK COMBINATION METER CIRCUIT
Check operation of each meter/gauge in self-diagnosis mode.
OK or NG
OK >> Go to DI-16, "Symptom Chart" .
NG >> Replace the combination meter. Refer to IP-12, "COM-
BINATION METER" .

WKIA1127E

Revision: July 2006 DI-14 2006 Quest
COMBINATION METERS

Power Supply and Ground Circuit Inspection EKS00FF8

1. CHECK FUSES A

Check for blown combination meter fuses.
Unit Power source Fuse No. B
Battery 19
Combination meter
Ignition switch ON or START 14
C
Refer to DI-9, "Wiring Diagram -- METER --" .
OK or NG
OK >> GO TO 2. D
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
E
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector M23.
2. Check voltage between combination meter harness connector F
terminals and ground.
Terminals Ignition switch position
G
(+)
(

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