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K ELECTRICAL

DRIVER INFORMATION SYSTEM
SECTION DI B

E
CONTENTS
PRECAUTION ........................................................... 3 . Power Supply and Ground Circuit Inspection ........ 20 . F
Precautions for Supplemental Restraint System Vehicle Speed Signal Inspection ........................... 21 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Water Temperature Signal Inspection ................... 21 .
SIONER" ................................................................. 3
. Engine Speed Signal Inspection ............................ 21 . G
PREPARATION .......................................................... 4 . Fuel Level Sensor Unit Inspection ......................... 22 .
Commercial Service Tool ........................................ 4 . FUEL LEVEL SENSOR UNIT ............................ 22 .
COMBINATION METERS .......................................... 5 . LOW-FUEL WARNING LAMP ............................ 22 .
H
Component Parts and Harness Connector Location 5 ..... Fuel Gauge Fluctuates, Indicates Wrong Value, or
System Description ................................................. 5 . Varies ..................................................................... 24
.
UNIFIED METER CONTROL UNIT ..................... 5 . Fuel Gauge Does Not Move to Full-position .......... 24 .
POWER SUPPLY AND GROUND CIRCUIT ....... 6 . DTC [U1000] CAN Communication Circuit ............ 24 . I
WATER TEMPERATURE GAUGE ....................... 6 . DTC [B2205] Vehicle Speed Circuit ....................... 25 .
TACHOMETER .................................................... 6 . Electrical Components Inspection ......................... 25 .
FUEL GAUGE ...................................................... 6 . FUEL LEVEL SENSOR UNIT CHECK ............... 25 . J
SPEEDOMETER .................................................. 7 . Combination Meter ................................................ 25 .
ODO/TRIP METER .............................................. 7 . REMOVAL AND INSTALLATION ....................... 25 .
FAIL-SAFE ........................................................... 8
. WARNING LAMPS ................................................... 26 .
DI
CAN COMMUNICATION SYSTEM DESCRIP- Schematic .............................................................. 26
.
TION ..................................................................... 8
. Wiring Diagram -- WARN -- ................................. 27 .
Arrangement of Combination Meter ........................ 9 . Oil Pressure Warning Lamp Stays Off (Ignition
Internal Circuit ....................................................... 10
. Switch ON) ............................................................ 33
. L
Wiring Diagram -- METER -- ................................11 . Oil Pressure Warning Lamp Does Not Turn Off (Oil
Combination Meter Harness Connector Terminal Pressure Is Normal) ............................................... 34 .
Layout ................................................................... 13
. Component Inspection ........................................... 34 . M
Terminals and Reference Value for Combination OIL PRESSURE SWITCH .................................. 34 .
Meter ..................................................................... 13
. A/T INDICATOR ....................................................... 35 .
Self-Diagnosis Mode of Combination Meter .......... 14 . Wiring Diagram -- AT/IND -- ................................ 35 .
SELF-DIAGNOSIS FUNCTION ......................... 14 . Trouble Diagnosis .................................................. 36 .
HOW TO INITIATE COMBINATION METER A/T Indicator Does Not Illuminate .......................... 36 .
SELF-DIAGNOSIS MODE ................................. 14 . WARNING CHIME .................................................... 37 .
COMBINATION METER SELF-DIAGNOSIS Component Parts and Harness Connector Location 37 ...
MODE FUNCTIONS .......................................... 14 . System Description ................................................ 37 .
CONSULT-II Function (METER) ............................ 16 . FUNCTION ......................................................... 37 .
CONSULT-II START PROCEDURE ................... 16 . IGNITION KEY WARNING CHIME .................... 37 .
SELF-DIAGNOSTIC RESULTS ......................... 16 . LIGHT WARNING CHIME .................................. 38 .
DATA MONITOR ................................................ 17 . SEAT BELT WARNING CHIME .......................... 38 .
Trouble Diagnosis ................................................. 19 . CAN Communication System Description ............. 38 .
HOW TO PERFORM TROUBLE DIAGNOSIS ... 19 Wiring Diagram -- CHIME -- ................................ 39 .
PRELIMINARY CHECK ..................................... 19 . Terminals and Reference Value for BCM .............. 41 .
Symptom Chart ..................................................... 19 . Combination Meter Harness Connector Terminal

Revision: March 2006 DI-1 2007 Quest
Layout .................................................................... 41
. Preliminary Check ..................................................56
.
Terminals and Reference Value for Combination INSPECTION FOR POWER SUPPLY AND
Meter ..................................................................... 41
. GROUND CIRCUIT ............................................56 .
How to Proceed With Trouble Diagnosis ............... 41 . Symptom Chart ......................................................57
.
Preliminary Check ................................................. 41 . Component Inspection ...........................................58 .
INSPECTION FOR POWER SUPPLY AND SONAR BUZZER ................................................58 .
GROUND CIRCUIT ............................................ 41 . REAR SONAR SYSTEM OFF SWITCH .............58 .
CONSULT-II Function (BCM) ................................. 42 . REAR SONAR SYSTEM OFF INDICATOR ........58 .
CONSULT-II START PROCEDURE ................... 42 . Rear Sonar Sensors ..............................................58 .
DATA MONITOR ................................................. 42 . REMOVAL AND INSTALLATION ........................58 .
ACTIVE TEST .................................................... 42 . Sonar Control Unit .................................................58
.
SELF-DIAGNOSTIC RESULTS .......................... 43 . REMOVAL AND INSTALLATION ........................58 .
All Warning Chimes Do Not Operate ..................... 43 . INSTALLATION ..................................................58 .
Key Warning Chime and Light Warning Chime Do REAR VIEW MONITOR ............................................59 .
Not Operate (Seat Belt Warning Chime Does Oper- Component Parts and Harness Connector Location ...59
ate) ........................................................................ 43
. System Description ................................................59.
Key Warning Chime Does Not Operate ................. 44 . POWER SUPPLY AND GROUND ......................59 .
Light Warning Chime Does Not Operate ............... 46 . AV COMMUNICATION LINE ..............................60 .
Seat Belt Warning Chime Does Not Operate ........ 46 . REAR VIEW CAMERA OPERATION .................60 .
REAR SONAR SYSTEM .......................................... 49 . Schematic ..............................................................61
.
Component Parts and Harness Connector Location 49 ... Wiring Diagram -- R/VIEW -- ...............................62 .
System Description ................................................ 49 . Rear View Camera Control Unit Harness Connector
FUNCTION ......................................................... 49 . Terminal Layout ......................................................65
.
REAR SONAR SYSTEM OFF SWITCH ............. 50 . Terminals and Reference Value for Rear View Cam-
SONAR BUZZER ............................................... 50 . era Control Unit ......................................................65
.
REAR SONAR SENSOR .................................... 50 . CONSULT-II Function (REARVIEW CAMERA) .....66 .
Wiring Diagram -- SONAR -- ............................... 51 . CONSULT-II START PROCEDURE ....................66 .
Sonar Control Unit Harness Connector Terminal WORK SUPPORT ..............................................66 .
Layout .................................................................... 53
. DATA MONITOR .................................................66 .
Terminals And Reference Value For Sonar Control Side Distance Guideline Correction .......................67 .
Unit ........................................................................ 53
. SIDE DISTANCE GUIDELINE CORRECTION
How to Proceed With Trouble Diagnosis ............... 54 . PROCEDURE .....................................................67 .
Pre-diagnosis Inspection ....................................... 54 . Power Supply and Ground Circuit Inspection ........69 .
SENSOR STATUS CHECK ................................ 54 . Rear View Is Not Displayed With The A/T Selector
Self-diagnosis Function ......................................... 54 . Lever In R Position .................................................70
.
ENTERING DIAGNOSTICS MODE ................... 54 . Rear View Camera Control Unit .............................74 .
REQUESTING NUMBER OF FAULT CODES REMOVAL AND INSTALLATION ........................74 .
MODE ................................................................. 55
. Rear View Camera .................................................74 .
REQUESTING FAULT CODES MODE .............. 55 . REMOVAL AND INSTALLATION ........................74 .
IDLING OR CLEARING FAULT CODES MODE... 55

Revision: March 2006 DI-2 2007 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
G 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
G 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
G 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: March 2006 DI-3 2007 Quest
PREPARATION

PREPARATION PFP:00002

Commercial Service Tool EKS00FEY

Tool name Description
Power tool Loosening bolts and nuts

PBIC0191E

Revision: March 2006 DI-4 2007 Quest
COMBINATION METERS

COMBINATION METERS PFP:24814
A
Component Parts and Harness Connector Location EKS00I97

G
WKIA5219E

1. Combination meter M24 2. Fuel level sensor unit and fuel pump 3. ECM E16
(fuel level sensor) B252 (view with
fuel tank removed) H
4. ABS actuator and electric unit (con-
trol unit) E125 (view with engine
removed) I
System Description EKS00FEZ

UNIFIED METER CONTROL UNIT
J
G Speedometer, odometer, tachometer, fuel gauge and water temperature gauge are controlled by the com-
bination meter.
G Warning indicators are controlled by signals drawn from the CAN communication system and components
connected directly to the combination meter. DI
G Digital meter is adopted for odometer.
NOTE:
The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter L
is erased when the battery is disconnected.
G Odometer/trip meter and A/T indicator segments can be checked in self-diagnosis mode.
M
G Meters/gauges can be checked in self-diagnosis mode.
G All warning indicators except air bag, washer fluid, security and seat belt can be checked in self-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.
G Approximately 60 seconds after turning the ignition switch from the ON to the OFF position
G If the battery is disconnected and then reconnected
Illumination control
The unified meter control unit outputs the odometer, 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 combination meter and instrument panel switch illumination. When the
ignition switch is in the START position, the combination meter dial lighting and illumination control switch
lighting are turned off. For additional combination meter illumination control information, refer to LT-141, "Sys-
tem Description" .

Revision: March 2006 DI-5 2007 Quest
COMBINATION METERS

POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
G through 15A fuse [No.19, located in the fuse block (J/B)]
G to combination meter terminal 40.
With the ignition switch in the ON or START position, power is supplied
G through 10A fuse [No.14, located in the fuse block (J/B)]
G to combination meter terminal 38.
Ground is supplied
G to combination meter terminal 20
G through body grounds M57, M61 and M79.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides a water temperature signal to combination meter via CAN communication lines.

SKIB6905E

TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to combination meter via CAN communication lines.

SKIB6904E

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
G to combination meter terminal 6
G through fuel level sensor unit and fuel pump terminal 2
G through fuel level sensor unit and fuel pump terminal 5
G from combination meter terminal 4.

Revision: March 2006 DI-6 2007 Quest
COMBINATION METERS

SPEEDOMETER
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN A
communication lines.

WKIA5370E

E
ODO/TRIP METER
G The ABS actuator and electric unit (control unit) converts a pulse signal received from the wheel sensor
into a vehicle speed signal. This signal is then transmitted to the unified meter via CAN communication.
F
G The vehicle speed signal and the memory signals from the meter memory circuit are processed by the
combination meter and the mileage is displayed.
How to Change the Display For Odo/Trip Meter G
Operating the odo/trip meter switch toggles the mode in the following order.

M
WKIA5371E

G The odo/trip meter display mode toggling and trip display reset-
ting can be identified by the amount of time that elapses from
pressing the odo/trip meter switch (1) to releasing it.
G When resetting with trip A displayed only trip A display is reset.
(Trip B operates the same way.)

WKIA5372E

Revision: March 2006 DI-7 2007 Quest
COMBINATION METERS

FAIL-SAFE
Combination meter performs a fail-safe operation for the functions listed below when communication is lost.
Function Fail-safe specifications
Speedometer
Tachometer
Zero indication
Fuel gauge
Water temperature gauge
Illumination control Meter illumination Change to nighttime mode when communication is lost.
Odometer Freeze current indication.
Segment LCD
A/T position Display turns off.
Buzzer Buzzer turns off.
ABS warning lamp
Brake warning lamp
Lamp turns on when communication is lost.
TCS/VDC OFF indicator lamp
SLIP indicator lamp
O/D OFF warning lamp
Oil pressure warning lamp
Door warning lamp
Malfunction indicator lamp
Lamp turns off when communication is lost.
CRUISE indicator lamp
Warning/indicator lamp
SET indicator lamp
High beam indicator
Turn signal indicator lamp
Driver and passenger seat belt
warning lamp
Lamp turns off when disconnected.
Charge warning lamp
Security indicator lamp
Air bag warning lamp Lamp turns on when disconnected.
Lamp will flash every second for 1 minute and then stay
Low tire pressure warning lamp
on continuously thereafter.

CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-4, "SYSTEM DESCRIPTION" .

Revision: March 2006 DI-8 2007 Quest
COMBINATION METERS

Arrangement of Combination Meter EKS00FF1

LKIA0708E

Revision: March 2006 DI-9 2007 Quest
COMBINATION METERS

Internal Circuit EKS00FF2

WKWA4659E

Revision: March 2006 DI-10 2007 Quest
COMBINATION METERS

Wiring Diagram -- METER -- EKS00FF3

WKWA4660E

Revision: March 2006 DI-11 2007 Quest
COMBINATION METERS

WKWA4661E

Revision: March 2006 DI-12 2007 Quest
COMBINATION METERS

Combination Meter Harness Connector Terminal Layout EKS00HSD

LKIA0698E D

Terminals and Reference Value for Combination Meter EKS00FF4

Condition E
Terminal Wire Reference value (V)
Item Ignition
No. color Operation or condition (Approx.)
switch
Refer to LT-142, "ILLUMINATION F
1 R/Y Illumination control switch -- Lighting switch ON OPERATION BY LIGHTING
SWITCH" .
Fuel level sensor signal G
4 B -- --
input Refer to DI-22, "Fuel Level Sensor
Fuel level sensor signal Unit Inspection" .
6 G/Y -- --
output H
9 L CAN-H -- -- --
11 P CAN-L -- -- --
20 B/W Ground ON -- 0V I
21 B/W Illumination ground ON -- 0V
Ignition switch ON or
38 O ON -- Battery voltage J
START
40 Y/R Battery power supply OFF -- Battery voltage

Revision: March 2006 DI-13 2007 Quest
COMBINATION METERS

Self-Diagnosis Mode of Combination Meter EKS00HSC

SELF-DIAGNOSIS FUNCTION
The following items can be checked during Combination Meter Self-Diagnosis Mode.
G Gauge sweep and present gauge values.
G Illuminates all odometer/trip meters and A/T indicator segments.
G Illuminates all micro controlled lamps/LEDs regardless of switch position.
G Displays estimated present battery voltage.
G Displays seat belt buckle switch LH status.
HOW TO INITIATE COMBINATION METER SELF-DIAGNOSIS MODE
NOTE:
G 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 or ACC.
G If the diagnosis function is activated with trip A displayed, the mileage on trip A is reset to 0000.0. (Trip B
operates the same way.)
To initiate combination meter self-diagnosis mode, refer to the following procedure.
1. Turn the ignition switch ON, while pressing the odometer/trip meter switch for 5 - 8 seconds. When the
diagnosis function is activated, the odometer/trip meter will display tESt.
NOTE:
Check combination meter power supply and ground circuit when self-diagnosis mode of combination meter
does not start. Refer to DI-20, "Power Supply and Ground Circuit Inspection" . Replace combination meter if
normal. Refer to IP-12, "Combination Meter" .
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:
Odometer/trip meter A/B
switch held from 5 to 8
tESt Initiating self-diagnosis mode
seconds (or until
released)
Performs sweep of all
Switch released GAGE gauges, then displays Gauges sweep within 10 seconds
present gauge values.

Lights all LCD segments.
Switch pressed (All segments illuminated)
Compare with picture.

WKIA5373E

Part may not be configured for all
Illuminates all micro-con-
Switch pressed bulb lamps (functions) that turn on dur-
trolled lamps/LEDs.
ing test. This is normal.
Return to normal opera-
If a malfunction exists, "FAIL" will
Switch pressed r XXXX, FAIL tion of all lamps/LEDs and
flash.
displays "r XXXX".
Switch pressed nrXXXX N/A
If a malfunction exists, "FAIL" will
Switch pressed EE XX, FAIL Displays "EE XX".
flash.
Switch pressed
DtXX through Epr XX N/A
(4 times)
Displays 8-bit market info $31 = USA
Switch pressed 1nF XX
value in Hex format. $2A = Canada
Switch pressed
cYL XX through tF N/A
(3 times)

Revision: March 2006 DI-14 2007 Quest
COMBINATION METERS

Event Odometer Display Description of Test/Data Notes:
A
"Corrected" speed value
in hundredths of MPH. Will display "-----" if message is
Switch pressed XXXXX Gauge indication may be not received. Will display "99999"
slightly higher. This is nor- if data received is invalid. B
mal.
"Corrected" speed value
in hundredths of KPH. Will display "-----" if message is
Switch pressed XXXXX Gauge indication may be not received. Will display "99999"
C
slightly different. This is if data received is invalid.
normal.
Tachometer value in D
RPM. Gauge indication Will display "-----" if message is
Switch pressed t XXXX
may be higher at higher not received.
RPM. This is normal.
E
Present fuel level A/D 000-009 = Short circuit
Switch pressed F1XXXX input. This input repre- 010-254 = Normal range
sents fuel sender input. 255 = Open circuit
"Filtered" fuel level. Fuel
F
000-009 = Short circuit
gauge indicates present
Switch pressed F2XXXX 010-254 = Normal range
filtered level per indication
255 = Open circuit
standard. G
Will display "---"C if message is
Last temperature gauge
not received.
input value in degrees C.
Will display "999" if data received
Switch pressed XXXC
Temperature gauge indi-
is invalid.
H
cates present tempera-
High = 130 deg C
ture per indication
Normal = 70 - 105 deg C
standard.
Low = less than 50 deg C
I
Estimated present bat-
Switch pressed BAtXXX
tery voltage.
Seat belt buckle switch 1= Buckled J
Switch pressed rES -X
LH status. 0 = Unbuckled
Switch pressed
PA -XX through PA1-XX N/A
(31 times)
DI
Return to beginning of self-diag-
Switch pressed GAGE
nosis cycle.

Revision: March 2006 DI-15 2007 Quest
COMBINATION METERS

CONSULT-II Function (METER) EKS00HS9

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
METER diagnosis mode Description
SELF-DIAG RESULTS Displays combination meter self-diagnosis results.
DATA MONITOR Displays combination meter input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.

CONSULT-II START PROCEDURE
Refer to GI-37, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
2. Self-diagnosis results are displayed.

SKIA4956E

Display Item List
Reference
CONSULT-II display Malfunction
Page
Malfunction is detected in CAN communication lines.
CAUTION:
CAN COMM CIRC [U1000] Even when there is no malfunction on CAN communication system, mal- DI-24
function may be misinterpreted when battery has low voltage (when main-
taining 7V-8V for about 2 seconds) or 10A fuse [No. 19, located in the fuse
block (J/B)] is removed.
Malfunction is detected when an erroneous speed signal is input.
CAUTION:
VEHICLE SPEED CIRC [B2205] Even when there is no malfunction on speed signal system, malfunctions DI-25
may be misinterpreted when battery has low voltage (when maintaining
7V-8V for about 2 seconds).

"TIME" indicates the condition of the self-diagnosis results judged by each signal input.
G Normal: If the system is presently operating properly, but had a malfunction in the past, the time will indi-
cate "1-63".
G Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, "0" is indicated.
After the system returns to normal operating condition, every time the ignition switch is cycled (turned to OFF
from ON), a value of one is added to the counter (i.e. "1""2""3"

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