SRS NISSAN NAVARA 2005 Repair User Guide

BL-4
PRECAUTIONS
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EIS00DHW
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:
lTo 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.
lImproper 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.
lDo 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.
Precautions for procedures with out cowl top coverEIS00DHY
When performing the procedure after removing cowl top cover,cover
the lower end of windshield with urethane,etc.
Precautions for WorkEIS00DHZ
lAfter removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check
their operation.
lCheck the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
Wiring Diagrams and Trouble DiagnosisEIS00DI0
When you read wiring diagrams, refer to the following:
lGI-15, "How to Read Wiring Diagrams"
lPG-4, "POWER SUPPLY ROUTING CIRCUIT"
When you perform trouble diagnosis, refer to the following:
lGI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
lGI-24, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any Service bulletins before servicing the vehicle.
PIIB3706J

BL-188
NATS(NISSAN ANTI-THEFT SYSTEM)
4.PERFORM INITIALIZATION WITH CONSULT-II AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual
NATS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows the message on the screen.
Can the system be initialized?
Yes >>SystemisOK.(BCMismalfunctioning.)
No >> ECM is malfunctioning.
lReplace ECM.
lPerform initialization with CONSULT-II
lFor initialization, refer to “CONSULT-II Operation
Manual NATS”
Removal and Installation of NATS Antenna AmpEIS00DB7
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Remove the cluster lid A. Refer toIP-10, "
INSTRUMENT PANEL ASSEMBLY".
2. Disconnect the NATS antenna amp connector, remove the
screw and antenna amp.
INSTALLATION
Install in the reverse order of removal.
NOTE:
lIf NATS antenna amp. is not installed correctly, NATS system will not operate properly and SELF-
DIAG RESULTS on CONSULT-II screen will show “LOCK MODE” or “CHAIN OF IMMU-KEY”.
lInitialization is not necessary only when NATS antenna amp. is replaced with a new one.
SEL297W
MIIB0713E

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTIONBR
A
B
BR
BRAKE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 3
Precautions for Brake System .................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
BRAKE PEDAL .......................................................... 6
Inspection and Adjustment ....................................... 6
ADJUSTMENT ...................................................... 7
Removal and Installation .......................................... 8
COMPONENTS .................................................... 8
REMOVAL ............................................................. 8
INSPECTION AFTER REMOVAL ......................... 9
INSTALLATION ..................................................... 9
BRAKE FLUID .......................................................... 10
On-board Inspection ............................................... 10
CHECKING BRAKE FLUID LEVEL .................... 10
Drain and Refill ....................................................... 10
Bleeding Brake System ........................................... 11
LHD MODEL ........................................................ 11
RHD MODEL ........................................................ 11
BRAKE TUBE AND HOSE ....................................... 12
Hydraulic Circuit ..................................................... 12
Removal and Installation of Front Brake Tube and
Brake Hose ............................................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13
Removal and Installation of Rear Brake Tube and
Brake Hose ............................................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13
Inspection after Installation .................................... 14
LOAD SENSING VALVE .......................................... 15
Removal and Installation ........................................ 15
REMOVAL ........................................................... 15INSTALLATION ................................................... 15
Inspection ............................................................... 16
INSPECTION ...................................................... 16
BRAKE MASTER CYLINDER .................................. 17
On-Board Inspection ............................................... 17
LEAK INSPECTION ............................................ 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
Components ........................................................... 17
Disassembly and Assembly .................................... 18
DISASSEMBLY ................................................... 18
ASSEMBLY ......................................................... 18
BRAKE BOOSTER ................................................... 19
On-Vehicle Service ................................................. 19
OPERATING CHECK .......................................... 19
AIRTIGHT CHECK .............................................. 19
Removal and Installation ........................................ 20
COMPONENTS ................................................... 20
REMOVAL ........................................................... 20
INSPECTION AFTER REMOVAL ....................... 20
INSTALLATION ................................................... 21
VACUUM LINES ....................................................... 22
Component ............................................................. 22
Removal and Installation ........................................ 23
Inspection ............................................................... 23
VISUAL INSPECTION ......................................... 23
CHECK VALVE INSPECTION ............................. 23
FRONT DISC BRAKE ............................................... 24
On-Board Inspection ............................................... 24
PAD WEAR INSPECTION ................................... 24
Components ........................................................... 24
Removal and Installation of Brake Pad .................. 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
Removal and Installation of Brake Caliper Assembly
... 26
REMOVAL ........................................................... 26
INSTALLATION ................................................... 26
Disassembly and Assembly of Brake Caliper

PRECAUTIONS
BR-3
C
D
E
G
H
I
J
K
L
MA
B
BR
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS006DL
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:
lTo 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.
lImproper 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.
lDo 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.
Precautions for Brake SystemEFS005SD
lClean dust on front brake and rear brake with a vacuum dust collector. Do not blow with compressed air.
lRecommended fluid is brake fluid “DOT 3” or “DOT 4”.
lNever reuse drained brake fluid.
lBe careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed
on painted areas, wash it away with water immediately.
lTo clean or wash all parts of master cylinder, disc brake caliper, wheel cylinder, use new brake fluid.
lNever use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
lUse a flare nut wrench when removing flare nuts, and use a flare
nut torque wrench when tighten flare nuts.
lAlways tighten brake lines to the specified torque when install-
ing.
lBefore working, turn ignition switch OFF and disconnect electri-
cal connector of ABS actuator and electric unit (control unit) or
the battery cables.
lBurnish the new brake surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer toBR-29, "
BRAKE BURNISHING PROCEDURE".
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.SBR820BA

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTIONBRC
A
B
BRC
BRAKE CONTROL SYSTEM
ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 3
PREPARATION ........................................................... 4
Special Service Tools (SST) ..................................... 4
SYSTEM DESCRIPTION ............................................ 5
System Diagram ....................................................... 5
Functions .................................................................. 5
Operation That Is Not “System Error” ...................... 5
Fail-Safe Function .................................................... 5
ABS, EBD SYSTEM .............................................. 5
Hydraulic Circuit Diagram ........................................ 6
CAN COMMUNICATION ............................................ 7
System Description .................................................. 7
TROUBLE DIAGNOSIS .............................................. 8
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ....................................................... 8
INTRODUCTION ................................................... 8
DIAGNOSIS FLOWCHART .................................. 9
ASKING COMPLAINTS ...................................... 10
EXAMPLE OF DIAGNOSIS SHEET ................... 10
Component Parts Location ...................................... 11
Schematic — ABS — ............................................. 12
Wiring Diagram — ABS — ..................................... 13
CONSULT- II Functions .......................................... 17
CONSULT-II MAIN FUNCTION ........................... 17
CONSULT-II BASIC OPERATION PROCEDURE
... 17
Self-Diagnosis ........................................................ 18
OPERATION PROCEDURE ............................... 18
ERASE MEMORY ............................................... 18
DISPLAY ITEM LIST ........................................... 18
Data Monitor ........................................................... 20
OPERATION PROCEDURE ............................... 20
DISPLAY ITEM LIST ........................................... 20Active Test .............................................................. 21
OPERATION PROCEDURE ................................ 21
SOLENOID VALVE .............................................. 22
ABS MOTOR ....................................................... 22
For Fast and Accurate Diagnosis ........................... 23
PRECAUTIONS FOR DIAGNOSIS ..................... 23
Basic Inspection ..................................................... 23
BASIC INSPECTION 1 BRAKE FLUID LEVEL,
LEAKS, AND BRAKE PADS ................................ 23
BASIC INSPECTION 2 POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION .................................................................... 23
BASIC INSPECTION 3 ABS WARNING LAMP
AND BRAKE WARNING LAMP INSPECTION .... 24
Inspection 1 Wheel Sensor System ........................ 24
Inspection 2 ABS Actuator and Electric Unit (Control
Unit) ........................................................................ 26
Inspection 3 ABS Actuator Relay or ABS Motor
Relay Circuit ........................................................... 26
Inspection 4 CAN Communication Circuit .............. 28
Inspection 5 ABS Actuator and Electric Unit (Control
Unit) Power Supply and Ground Circuit .................. 28
Inspection 6 Brake Fluid Level Switch Circuit ......... 30
Inspection 7 Parking Brake Switch Circuit .............. 32
Inspection 8 Warning lamp system ......................... 33
Symptom 1: Excessive ABS Function Operation
Frequency ............................................................... 33
Symptom 2: Unexpected Pedal Reaction ............... 34
Symptom 3: The Stopping Distance Is Long .......... 34
Symptom 4: ABS Function Does Not Operate ....... 35
Symptom 5: Pedal Vibration or ABS Operation
Sound Occurs ......................................................... 35
Symptom 6: ABS Warning Lamp Indication Is Not
Normal .................................................................... 35
WHEEL SENSORS ................................................... 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 38
INSTALLATION ................................................... 38

PRECAUTIONS
BRC-3
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
[ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS006DM
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:
lTo 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.
lImproper 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.
lDo 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.
Precautions for Brake SystemEFS005TG
lRecommended fluid is brake fluid “DOT 3” or “DOT 4”.
lNever reuse drained brake fluid.
lBe careful not to splash brake fluid on painted areas.If brake fluid is splashed, wipe it off and flush area
with water immediately.
lNever use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
lUse flare nut wrench when removing flare nuts, and use a flare
nut torque wrench when tighten flare nuts.
lBrake system is an important safety part.If a brake fluid leak is
detected, always disassemble the affected part.If a malfunction
is detected, replace part with new one.
lBefore working, turn ignition switch OFF and disconnect con-
nector of ABS actuator and electric unit (control unit) or the bat-
tery cables.
lWhen installing brake tube and hose, be sure to torque.
WARNING:
Clean brake pads and shoes with a waster cloth, then wipe with
a dust collector.
Precautions for Brake ControlEFS005TH
lJust after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine room. This is a normal status of operation check.
lStopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
lWhen an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check brake booster operation, brake fluid
level, and fluid leaks.
lIf tyre size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
lIf there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function
may have a malfunction or error.
lIf aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
SBR820BA

DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTIONDI
A
B
DI
DRIVER INFORMATION SYSTEM
PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
COMBINATION METERS ........................................... 4
System Description .................................................. 4
UNIFIED METER CONTROL UNIT ...................... 4
POWER SUPPLY AND GROUND CIRCUIT ........ 4
SPEEDOMETER ................................................... 4
TACHOMETER ..................................................... 4
WATER TEMPERATURE GAUGE ........................ 4
FUEL GAUGE ....................................................... 5
ODO/TRIP METER ............................................... 5
TRIP COMPUTER ................................................ 5
ENGINE OIL MAINTENANCE INFORMATION..... 6
METER ILLUMINATION CONTROL ..................... 6
CLOCK .................................................................. 6
AMBIENT AIR TEMPERATURE INDICATION ...... 6
Component Parts and Harness Connector Location..... 7
Arrangement of Combination Meter ......................... 8
Internal Circuit .......................................................... 9
Wiring Diagram — METER — ................................ 10
Terminals and Reference Value for Combination
Meter ...................................................................... 12
Self-Diagnosis Mode of Combination Meter ........... 13
FUNCTION .......................................................... 13
OPERATION PROCEDURE ............................... 13
TEST ITEM ......................................................... 13
CONSULT-II Function (METER) ............................. 15
CONSULT-II BASIC OPERATION ....................... 15
SELF-DIAG RESULTS ........................................ 16
DATA MONITOR ................................................. 17
Trouble Diagnosis .................................................. 18
HOW TO PERFORM TROUBLE DIAGNOSIS ... 18
PRELIMINARY CHECK ...................................... 19
Symptom Chart ...................................................... 19
Power Supply and Ground Circuit Inspection ........ 19
Vehicle Speed Signal Inspection ............................ 20
Engine Speed Signal Inspection ............................ 21Engine Coolant Temperature Signal Inspection ..... 21
Fuel Level Sensor Signal Inspection ...................... 22
Ambient Sensor Signal Inspection .......................... 24
Fuel Gauge Fluctuates, Indicates Wrong Value, or
Varies ...................................................................... 25
Fuel Gauge Does Not Move to Full position ........... 25
DTC [U1000] CAN Communication Circuit ............. 26
DTC [B2205] Vehicle Speed Circuit ........................ 26
Electrical Components Inspection .......................... 27
FUEL LEVEL SENSOR UNIT CHECK ................ 27
AMBIENT SENSOR CHECK ............................... 27
Removal and Installation of Combination Meter ..... 27
WARNING LAMPS .................................................... 28
System Description ................................................. 28
OIL PRESSURE WARNING LAMP ..................... 28
Component Parts and Harness Connector Location... 28
Schematic ............................................................... 29
Wiring Diagram — WARN — .................................. 30
A/T MODELS ....................................................... 30
M/T MODELS ...................................................... 37
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 44
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 45
Oil Pressure Warning Lamp Keeps Blinking (Oil
Level Is Normal) ..................................................... 46
Component Inspection ............................................ 47
OIL PRESSURE SWITCH ................................... 47
OIL LEVEL SENSOR .......................................... 47
A/T INDICATOR ........................................................ 48
System Description ................................................. 48
Wiring Diagram — AT/IND — ................................. 49
A/T Indicator Does Not Illuminate ........................... 50
WARNING CHIME ..................................................... 51
System Description ................................................. 51
POWER SUPPLY AND GROUND CIRCUIT ....... 51
LIGHT WARNING CHIME ................................... 51
KEY REMINDER WARNING CHIME .................. 51
LOW-FUEL WARNING CHIME ........................... 51
SEAT BELT WARNING CHIME ........................... 52

PRECAUTION
DI-3
C
D
E
F
G
H
I
J
L
MA
B
DI
PRECAUTIONPFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00N1V
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:
lTo 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.
lImproper 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.
lDo 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.
Wiring Diagrams and Trouble DiagnosisEKS00L8C
When reading wiring diagrams, refer to the following:
lGI-15, "How to Read Wiring Diagrams"
lPG-4, "POWER SUPPLY ROUTING CIRCUIT"for power distribution circuit
When performing trouble diagnosis, refer to the following:
lGI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
lGI-24, "How to Perform Efficient Diagnosis for an Electrical Incident"

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTIONEC
A
EC
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 6
DTC No. Index ......................................................... 6
Alphabetical Index .................................................... 8
PRECAUTIONS ........................................................ 10
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” ................................................................ 10
On Board Diagnostic (OBD) System of Engine ...... 10
Precautions ............................................................ 10
Wiring Diagrams and Trouble Diagnosis ................ 13
PREPARATION ......................................................... 14
Special Service Tools ............................................. 14
Commercial Service Tools ...................................... 14
ENGINE CONTROL SYSTEM .................................. 15
System Diagram ..................................................... 15
Vacuum Hose Drawing ........................................... 16
System Chart ......................................................... 18
Fuel Injection Control System ................................ 18
Fuel Injection Timing Control System ..................... 20
Air Conditioning Cut Control ................................... 20
Fuel Cut Control (At No Load & High Engine Speed)... 20
Crankcase Ventilation System ............................... 21
CAN Communication .............................................. 22
BASIC SERVICE PROCEDURE .............................. 23
Fuel Filter ............................................................... 23
Fuel Pump Learning Value Clearing ...................... 24
Injector Adjustment Value Registration .................. 25
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 27
DTC Detection Logic .............................................. 27
Diagnostic Trouble Code (DTC) ............................. 27
Freeze Frame Data ................................................ 28
NATS (Nissan Anti-theft System) ........................... 28
Malfunction Indicator (MI) ....................................... 28
Relationship Between MI, DTC, CONSULT-II and
Driving Patterns ...................................................... 31
TROUBLE DIAGNOSIS ............................................ 33
Trouble Diagnosis Introduction ............................... 33
DTC Inspection Priority Chart ................................ 37
Basic Inspection ..................................................... 38
Symptom Matrix Chart ........................................... 42Engine Control Component Parts Location ............ 46
Circuit Diagram ....................................................... 50
ECM Harness Connector Terminal Layout ............. 52
ECM Terminals And Reference Value .................... 52
CONSULT-II Function (ENGINE) ............................ 59
CONSULT-II Reference Value in Data Monitor Mode
... 66
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................... 69
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ......................................................................... 70
Description .............................................................. 70
Diagnostic Procedure ............................................. 70
POWER SUPPLY AND GROUND CIRCUIT ............. 71
ECM Terminals and Reference Value ..................... 71
Wiring Diagram ....................................................... 72
Diagnostic Procedure ............................................. 73
Ground Inspection .................................................. 78
DTC U1000 CAN COMMUNICATION LINE .............. 79
Description .............................................................. 79
On Board Diagnosis Logic ...................................... 79
DTC Confirmation Procedure ................................. 79
Wiring Diagram ....................................................... 80
Diagnostic Procedure ............................................. 81
DTC P0016 CKP - CMP CORRELATION ................. 82
On Board Diagnosis Logic ...................................... 82
DTC Confirmation Procedure ................................. 82
Diagnostic Procedure ............................................. 82
DTC P0088 FUEL SYSTEM ...................................... 84
On Board Diagnosis Logic ...................................... 84
DTC Confirmation Procedure ................................. 84
Diagnostic Procedure ............................................. 84
Removal and Installation ........................................ 85
DTC P0089 FUEL PUMP .......................................... 86
On Board Diagnosis Logic ...................................... 86
DTC Confirmation Procedure ................................. 86
Diagnostic Procedure ............................................. 87
Removal and Installation ........................................ 87
DTC P0093 FUEL SYSTEM ...................................... 88
On Board Diagnosis Logic ...................................... 88

EC-10
PRECAUTIONS
PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS01KC5
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:
lTo 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.
lImproper 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.
lDo 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.
On Board Diagnostic (OBD) System of EngineEBS01KC6
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:
lBe sure to turn the ignition switch OFF and disconnect the battery negative cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.
lBe sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
lCertain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer toPG-75, "
HAR-
NESS CONNECTOR".
lBe sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.
lBe sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel system, etc.
lBe sure to erase the unnecessary malfunction information (repairs completed) from the ECM
before returning the vehicle to the customer.
PrecautionsEBS01KC7
lAlways use a 12 volt battery as power source.
lDo not attempt to disconnect battery cables while engine is
running.
lBefore connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect battery
negative cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned off.
lBefore removing parts, turn ignition switch OFF and then
disconnect battery negative cable.
SEF289H