Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Sentra 2000-2005 Approved Nissan Sentra 2005 DI
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K ELECTRICAL
A
B
SECTION
DRIVER INFORMATION SYSTEM C
D
E
CONTENTS
PRECAUTION ........................................................... 3
. INSPECTION/VEHICLE SPEED SENSOR ........ 21 . F
Precautions for Supplemental Restraint System INSPECTION/ENGINE REVOLUTION SIGNAL 22 ...
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- INSPECTION/FUEL LEVEL SENSOR UNIT
SIONER" ................................................................. 3
. AND FUEL PUMP .............................................. 23 . G
Wiring Diagrams and Trouble Diagnosis ................. 3 . INSPECTION/WATER TEMPERATURE
METERS AND GAUGES ........................................... 4 . GAUGE .............................................................. 25
.
Component Parts and Harness Connector Location 4 ..... Electrical Components Inspection ......................... 26 .
H
System Description ................................................. 5
. FUEL LEVEL SENSOR UNIT CHECK ............... 26 .
UNIFIED CONTROL METER ............................... 5 . VEHICLE SPEED SENSOR SIGNAL CHECK ... 26
HOW TO CHANGE THE DISPLAY FOR ODO/ Removal and Installation of Combination Meter .... 26 .
TRIP METER (WITHOUT TRIP COMPUTER) ..... 5 WARNING LAMPS ................................................... 27 . I
HOW TO CHANGE THE DISPLAY FOR ODO/ Schematic .............................................................. 27
.
TRIP METER (WITH TRIP COMPUTER) ............ 5 . WITHOUT TACHOMETER ................................. 27 .
POWER SUPPLY AND GROUND CIRCUIT ....... 6 . WITH TACHOMETER ........................................ 28 . J
WATER TEMPERATURE GAUGE ....................... 6 . Wiring Diagram -- WARN -- ................................. 29 .
TACHOMETER .................................................... 6 . WITHOUT TACHOMETER ................................. 29 .
FUEL GAUGE ...................................................... 6
. WITH TACHOMETER (QG18DE MODELS) ...... 32 . DI
SPEEDOMETER .................................................. 6 . WITH TACHOMETER (QR25DE MODELS) ...... 36 .
CAN Communication System Description ............... 6 . Electrical Components Inspection ......................... 40 .
Combination Meter .................................................. 7
. FUEL WARNING LAMP OPERATION CHECK ... 40
WITHOUT TACHOMETER .................................. 7 . OIL PRESSURE SWITCH CHECK .................... 40 . L
WITH TACHOMETER (QG18DE MODELS) ........ 8 . DIODE CHECK .................................................. 40 .
QR25DE ............................................................... 9
. WARNING CHIME .................................................... 41 .
Schematic ............................................................. 10
. Component Parts and Harness Connector Location 41 ... M
WITHOUT TACHOMETER ................................ 10 . System Description ................................................ 42 .
WITH TACHOMETER (QG18DE MODELS) .......11 . WITHOUT POWER DOOR LOCKS ................... 42 .
WITH TACHOMETER (QR25DE MODELS) ...... 12 . WITH POWER DOOR LOCKS ........................... 42 .
Wiring Diagram -- METER -- ............................... 13 . Wiring Diagram -- CHIME -- ................................ 44 .
WITHOUT TACHOMETER ................................ 13 . WITHOUT POWER DOOR LOCKS ................... 44 .
WITH TACHOMETER (QG18DE MODELS) ...... 14 . WITH POWER DOOR LOCKS ........................... 45 .
WITH TACHOMETER (QR25DE MODELS) ...... 15 . CONSULT-II Function (BCM) ................................ 46 .
Meter/Gauge Operation and Odo/Trip Meter Seg- CONSULT-II BASIC OPERATION PROCEDURE
ment Check in Diagnosis Mode ............................ 16 . (WITH POWER DOOR LOCKS) ........................ 46 .
SELF-DIAGNOSIS FUNCTION ......................... 16 . CONSULT-II Application Items (With Power Door
HOW TO ALTERNATE DIAGNOSIS MODE ...... 16 . Locks) .................................................................... 47
.
Trouble Diagnoses ................................................ 17
. "KEY WARN ALARM" ......................................... 47 .
PRELIMINARY CHECK ..................................... 17 . "LIGHT WARN ALM" .......................................... 47 .
SYMPTOM CHART ............................................ 18 . "SEAT BELT ALM" .............................................. 47 .
POWER SUPPLY AND GROUND CIRCUIT Trouble Diagnoses (Without Power Door Locks) ... 48
CHECK ............................................................... 18
. SYMPTOM CHART ............................................ 48 .
Revision: July 2005 DI-1 2005 Sentra
POWER SUPPLY AND GROUND CIRCUIT BOARD COMPUTER ...............................................60 .
CHECK ............................................................... 48
. System Description ................................................60
.
DIAGNOSTIC PROCEDURE 1 (LIGHTING FUNCTION .........................................................60
.
SWITCH INPUT SIGNAL CHECK) ..................... 49 . OUTSIDE AIR TEMPERATURE INDICATION ....60 .
DIAGNOSTIC PROCEDURE 2 (KEY SWITCH DTE (DISTANCE TO EMPTY) INDICATION .......60 .
INSERT SIGNAL CHECK) ................................. 49 . TRIP DISTANCE .................................................60.
DIAGNOSTIC PROCEDURE 3 (SEAT BELT TRIP TIME ..........................................................60
.
BUCKLE SWITCH LH CHECK) .......................... 50 . AVERAGE FUEL CONSUMPTION .....................60 .
DIAGNOSTIC PROCEDURE 4 .......................... 51 . AVERAGE VEHICLE SPEED .............................60 .
Trouble Diagnoses (With Power Door Locks) ........ 53 . HOW TO CHANGE/RESET INDICATION ..........60 .
SYMPTOM CHART ............................................ 53 . CAN Communication System Description .............61 .
POWER SUPPLY AND GROUND CIRCUIT Wiring Diagram -- B/COMP -- ..............................62 .
CHECK ............................................................... 53
. Trouble Diagnoses .................................................63
.
DIAGNOSTIC PROCEDURE 1 (LIGHTING SEGMENT CHECK .............................................63 .
SWITCH INPUT SIGNAL CHECK) ..................... 54 . PRELIMINARY CHECK ......................................63 .
DIAGNOSTIC PROCEDURE 2 (KEY SWITCH DIAGNOSIS PROCEDURE ................................63 .
INSERT SIGNAL CHECK) ................................. 55 . Electrical Components Inspection ..........................64 .
DIAGNOSTIC PROCEDURE 3 (SEAT BELT AMBIENT SENSOR ............................................64 .
BUCKLE SWITCH LH CHECK) .......................... 56 .
DIAGNOSTIC PROCEDURE 4 .......................... 57 .
Revision: July 2005 DI-2 2005 Sentra
PRECAUTION
PRECAUTION PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00BNX
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 EKS008XP
When you read wiring diagrams, refer to the following: G
q Refer to GI-15, "How to Read Wiring Diagrams" .
q Refer to PG-3, "POWER SUPPLY ROUTING" for power distribution circuit.
When you perform trouble diagnosis, refer to the following: H
q Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
q Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" .
I
J
DI
L
M
Revision: July 2005 DI-3 2005 Sentra
METERS AND GAUGES
METERS AND GAUGES PFP:24814
Component Parts and Harness Connector Location EKS00399
WKIA1094E
Revision: July 2005 DI-4 2005 Sentra
METERS AND GAUGES
System Description EKS0039A
UNIFIED CONTROL METER A
q Speedometer, odo/trip meter, tachometer (if equipped), fuel gauge and water temperature gauge are con-
trolled by the unified meter control unit built-in combination meter.
q Digital meter is adopted for odo/trip meter.* B
*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. C
q Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER (WITHOUT TRIP COMPUTER)
D
NOTE:
Turn ignition switch to the ON position to operate odo/trip meter.
E
F
G
H
I
J
SEL253V
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER (WITH TRIP COMPUTER)
DI
NOTE:
Turn ignition switch to the ON position to operate odo/trip meter.
L
M
SEL175W
Revision: July 2005 DI-5 2005 Sentra
METERS AND GAUGES
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times:
q through 10A fuse [No. 12, located in the fuse block (J/B)]
q to combination meter terminal 25 (without tachometer), or 42 (QG18DE with tachometer), or 13
(QR25DE).
With the ignition switch in the ON or START position, power is supplied:
q through 10A fuse [No. 30, located in the fuse block (J/B)]
q to combination meter terminal 26 and 20 (without tachometer), or 41 and 6 (QG18DE with tachometer), or
14 and 7 (QR25DE).
Ground is supplied:
q to combination meter terminal 27 (without tachometer), or 48 (QG18DE with tachometer), or 12
(QR25DE)
q through body grounds M28 and M54.
q to combination meter terminal 31 (without tachometer), or 45 (QG18DE with tachometer), or 8 (QR25DE)
q through body grounds B19 and B13.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides a water temperature signal to combination meter for water temperature gauge with CAN com-
munication line.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to combination meter for tachometer with CAN communication line.
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:
q to combination meter terminal 30 (without tachometer), or 44 (QG18DE with tachometer), or 21
(QR25DE) for the fuel gauge
q from terminal 2 of the fuel level sensor unit and fuel pump
q through terminal 5 of the fuel level sensor unit and fuel pump, and
q through body grounds B19 and B13.
SPEEDOMETER
The combination meter receives a voltage signal from the vehicle speed sensor for the speedometer.
The voltage is supplied:
q to combination meter terminal 29 (without tachometer), or 47 (QG18DE with tachometer), or 17
(QR25DE) for the speedometer
q from terminal 1 (with QG18DE), or terminal + (with QR25DE) of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.
CAN Communication System Description EKS003LD
Refer to LAN-4, "CAN COMMUNICATION" .
Revision: July 2005 DI-6 2005 Sentra
METERS AND GAUGES
Combination Meter EKS0039B
WITHOUT TACHOMETER A
B
C
D
E
F
G
H
I
J
DI
L
M
WKIA0289E
Revision: July 2005 DI-7 2005 Sentra
METERS AND GAUGES
WITH TACHOMETER (QG18DE MODELS)
WKIA1095E
Revision: July 2005 DI-8 2005 Sentra
METERS AND GAUGES
QR25DE
A
B
C
D
E
F
G
H
I
J
DI
L
M
WKIA1096E
Revision: July 2005 DI-9 2005 Sentra
METERS AND GAUGES
Schematic EKS0039C
WITHOUT TACHOMETER
WKWA0607E
Revision: July 2005 DI-10 2005 Sentra
METERS AND GAUGES
WITH TACHOMETER (QG18DE MODELS)
A
B
C
D
E
F
G
H
I
J
DI
L
M
WKWA1611E
Revision: July 2005 DI-11 2005 Sentra
METERS AND GAUGES
WITH TACHOMETER (QR25DE MODELS)
WKWA1612E
Revision: July 2005 DI-12 2005 Sentra
METERS AND GAUGES
Wiring Diagram -- METER -- EKS0039D
WITHOUT TACHOMETER A
B
C
D
E
F
G
H
I
J
DI
L
M
WKWA1613E
Revision: July 2005 DI-13 2005 Sentra
METERS AND GAUGES
WITH TACHOMETER (QG18DE MODELS)
WKWA1614E
Revision: July 2005 DI-14 2005 Sentra
METERS AND GAUGES
WITH TACHOMETER (QR25DE MODELS)
A
B
C
D
E
F
G
H
I
J
DI
L
M
WKWA0605E
Revision: July 2005 DI-15 2005 Sentra
METERS AND GAUGES
Meter/Gauge Operation and Odo/Trip Meter Segment Check in Diagnosis Mode
EKS0039E
SELF-DIAGNOSIS FUNCTION
q Odo/trip meter segment can be checked in diagnosis mode.
q Meters/gauges can be checked in diagnosis mode.
HOW TO ALTERNATE DIAGNOSIS MODE
1. Turn ignition switch to ON and change odo/trip meter to "TRIP
A" or "TRIP B".
2. Turn ignition switch to OFF.
3. Turn ignition switch to ON when pushing odo/trip meter switch.
4. Release odo/trip meter switch 1 second after ignition switch is
turned ON.
5. Push odo/trip meter switch three times within 7 seconds.
6. All odo/trip meter segments should be turned on.
NOTE:
If some segments are not turned on, combination meter should
be replaced.
At this point, the unified meter control unit is turned to diagnosis
mode.
WKIA1120E
7. Push odo/trip meter switch. Indication of each meter/gauge
should be as shown in figure while pushing odo/trip meter
switch.
NOTE:
It takes a few seconds for indication of fuel gauge and water
temperature gauge to become stable.
8. Turn ignition switch to OFF or start engine to cancel diagnosis
mode.
WEL128
Revision: July 2005 DI-16 2005 Sentra
METERS AND GAUGES
Trouble Diagnoses EKS0039F
PRELIMINARY CHECK A
B
C
D
E
F
G
H
I
J
DI
L
M
WKIA0159E
*1: DI-16 *2: DI-18 *3: DI-18
Revision: July 2005 DI-17 2005 Sentra
METERS AND GAUGES
SYMPTOM CHART
Symptom Possible causes Repair order
One meter/gauge (speed- 1. Sensor signal 1. Check the sensor for malfunctioning meter/gauge.
ometer/tachometer/fuel - Vehicle speed signal DI-21, "INSPECTION/VEHICLE SPEED SENSOR"
gauge/water temp. gauge) - Engine revolution signal DI-22, "INSPECTION/ENGINE REVOLUTION SIGNAL"
is malfunctioning. - Fuel gauge DI-23, "INSPECTION/FUEL LEVEL SENSOR UNIT
- Water temp. gauge AND FUEL PUMP"
Multiple meters/gauges DI-25, "INSPECTION/WATER TEMPERATURE
2. Unified meter control unit
(except odo/trip meter) are GAUGE"
malfunctioning.
2. Replace combination meter assembly.
Before starting trouble diagnoses below, perform "PRELIMINARY CHECK", DI-17, "PRELIMINARY CHECK" .
POWER SUPPLY AND GROUND CIRCUIT CHECK
1. CHECK FUSE
Check for blown combination meter fuses.
Unit Power source Fuse No.
Battery 12
Combination meter
Ignition switch ON or START 30
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING" .
Revision: July 2005 DI-18 2005 Sentra
METERS AND GAUGES
2. CHECK POWER SUPPLY CIRCUIT A
1. Disconnect combination meter connector M29 (QR25DE) or M29 and M30 for (QG18DE).
2. Check voltage between combination meter harness connector terminals and ground.
B
(QG18DE WITHOUT TACHOMETER)
Terminals Ignition switch position
(+) C
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