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K ELECTRICAL
A
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
D
E
CONTENTS
POWER SUPPLY ROUTING ..................................... 2 . ELECTRICAL UNITS LOCATION ........................... 45 . F
Schematic ............................................................... 2
. Electrical Units Location ........................................ 45 .
Wiring Diagram -- POWER -- ................................ 4 . ENGINE COMPARTMENT ................................. 45 .
BATTERY POWER SUPPLY -- IGNITION SW. PASSENGER COMPARTMENT ........................ 46 . G
IN ANY POSITION ............................................... 4 . Fuse ....................................................................... 48
.
ACCESSORY POWER SUPPLY -- IGNITION Fusible Link ........................................................... 48
.
SW. IN "ACC" OR "ON" ........................................ 7 . Circuit Breaker ....................................................... 48
.
H
IGNITION POWER SUPPLY -- IGNITION SW. HARNESS CONNECTOR ........................................ 49 .
IN "ON" ................................................................. 8
. Description ............................................................. 49
.
IGNITION POWER SUPPLY -- IGNITION SW. HARNESS CONNECTOR (TAB-LOCKING
IN "ON" AND/OR "START" ................................... 9 . TYPE) ................................................................. 49
. I
GROUND ................................................................. 12
. HARNESS CONNECTOR (SLIDE-LOCKING
Ground Distribution ............................................... 12
. TYPE) ................................................................. 50
.
MAIN HARNESS ................................................ 12 . HARNESS CONNECTOR (DIRECT-CONNECT J
ENGINE ROOM HARNESS ............................... 14 . SRS COMPONENT TYPE) ................................ 51 .
ENGINE CONTROL HARNESS ........................ 16 . JOINT CONNECTOR ............................................... 52 .
BODY HARNESS ............................................... 20 . Terminal Arrangement ........................................... 52 .
PG
REAR WINDOW DEFOGGER GROUND HAR- QG18DE (EXC CALIF. CA MODEL) .................. 52 .
NESS ................................................................. 21
. QG18DE (CALIF. CA MODEL) ........................... 53 .
ROOM HARNESS .............................................. 22 . QR25DE ............................................................. 54.
HARNESS ................................................................ 23
. ELECTRICAL UNITS ............................................... 55 . L
Harness Layout ..................................................... 23
. Terminal Arrangement ........................................... 55 .
HOW TO READ HARNESS LAYOUT ................ 23 . STANDARDIZED RELAY ......................................... 56 .
OUTLINE ............................................................ 24
. Description ............................................................. 56
. M
MAIN HARNESS ................................................ 25 . NORMAL OPEN, NORMAL CLOSED AND
ENGINE ROOM HARNESS ............................... 27 . MIXED TYPE RELAYS ....................................... 56 .
ENGINE CONTROL HARNESS ........................ 30 . TYPE OF STANDARDIZED RELAYS ................ 56 .
BODY HARNESS ............................................... 36 . FUSE BLOCK -- JUNCTION BOX (J/B) ................ 58 .
ROOM LAMP HARNESS ................................... 38 . Terminal Arrangement ........................................... 58 .
FRONT DOOR HARNESS ................................. 39 . FUSE AND FUSIBLE LINK BOX ............................. 59 .
REAR DOOR HARNESS ................................... 40 . Terminal Arrangement ........................................... 59 .
Wiring Diagram Codes (Cell Codes) ..................... 41 .
PG-1
POWER SUPPLY ROUTING
POWER SUPPLY ROUTING PFP:24110
Schematic EKS002CT
For detailed ground distribution information, refer to PG-12, "Ground Distribution" .
WKWA0403E
PG-2
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0404E
PG-3
POWER SUPPLY ROUTING
Wiring Diagram -- POWER -- EKS002CU
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION
WKWA0405E
PG-4
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0057E
PG-5
POWER SUPPLY ROUTING
WKWA0406E
PG-6
POWER SUPPLY ROUTING
ACCESSORY POWER SUPPLY -- IGNITION SW. IN "ACC" OR "ON"
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0250E
PG-7
POWER SUPPLY ROUTING
IGNITION POWER SUPPLY -- IGNITION SW. IN "ON"
WKWA0407E
PG-8
POWER SUPPLY ROUTING
IGNITION POWER SUPPLY -- IGNITION SW. IN "ON" AND/OR "START"
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0408E
PG-9
POWER SUPPLY ROUTING
WKWA0409E
PG-10
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0410E
PG-11
GROUND
GROUND PFP:24080
Ground Distribution EKS002CV
MAIN HARNESS
WKIA0359E
PG-12
GROUND
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0360E
PG-13
GROUND
ENGINE ROOM HARNESS
WKIA0215E
PG-14
GROUND
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0361E
PG-15
GROUND
ENGINE CONTROL HARNESS
QG18DE
WKIA0362E
PG-16
GROUND
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0363E
PG-17
GROUND
WKIA0364E
PG-18
GROUND
QR25DE
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0365E
PG-19
GROUND
BODY HARNESS
WKIA0219E
PG-20
GROUND
REAR WINDOW DEFOGGER GROUND HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
LEL434
PG-21
GROUND
ROOM HARNESS
LEL433
PG-22
HARNESS
HARNESS PFP:24010
A
Harness Layout EKS002CW
HOW TO READ HARNESS LAYOUT
The following Harness Layouts use a map style grid to help locate B
connectors on the drawings:
q Main Harness
q Engine Room Harness C
q Engine Control Harness
q Body Harness
D
SEL252V
E
TO USE THE GRID REFERENCE
1. Find the desired connector number on the connector list.
2. Find the grid reference. F
3. On the drawing, find the crossing of the grid reference letter column and number row.
4. Find the connector number in the crossing zone.
G
5. Follow the line (if used) to the connector.
CONNECTOR SYMBOL
Main symbols of connector (in Harness Layout) are indicated in the below. H
Water proof type Standard type
Connector type
Male Female Male Female
I
q Cavity: Less than 4
q Relay connector
q Cavity: From 5 to 8 J
q Cavity: More than 9
PG
q Ground terminal etc.
--
L
M
PG-23
HARNESS
OUTLINE
WKIA0366E
NOTE:
For detailed ground distribution information, refer to PG-12, "Ground Distribution" .
PG-24
HARNESS
MAIN HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0367E
PG-25
HARNESS
WKIA0368E
PG-26
HARNESS
ENGINE ROOM HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0369E
PG-27
HARNESS
WKIA0370E
PG-28
HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0371E
PG-29
HARNESS
ENGINE CONTROL HARNESS
QG18DE (EXCEPT CALIF. CA MODEL)
WKIA0372E
PG-30
HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0373E
PG-31
HARNESS
QG18DE (CALIF. CA MODEL)
WKIA0374E
PG-32
HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0375E
PG-33
HARNESS
QR25DE
WKIA0376E
PG-34
HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0377E
PG-35
HARNESS
BODY HARNESS
WKIA0378E
PG-36
HARNESS
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0379E
PG-37
HARNESS
ROOM LAMP HARNESS
WKIA0380E
PG-38
HARNESS
FRONT DOOR HARNESS
LH SIDE A
B
C
D
E
F
G
H
I
WKIA0381E
RH SIDE
J
PG
L
M
WKIA0382E
PG-39
HARNESS
REAR DOOR HARNESS
LH SIDE
WKIA0383E
RH SIDE
WKIA0384E
PG-40
HARNESS
Wiring Diagram Codes (Cell Codes) EKS002CX
A
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
B
Code Section Wiring Diagram Name
1STSIG AT A/T 1ST Signal
2NDSIG AT A/T 2ND Signal C
3RDSIG AT A/T 3RD Signal
4THSIG AT A/T 4TH Signal
AAC/V EC IACV-AAC Valve (QG18DE Model) D
ABS BRC Anti-lock Brake System
A/C MTC Air Conditioner
E
A/F EC Air Fuel Ratio (A/F) Sensor 1 [QG18DE (Calif. CA Model)]
A/FH EC Air Fuel Ratio (A/F) Sensor 1 Heater [QG18DE (Calif. CA Model)]
APPS1 EC Accelerator Pedal Position Sensor (QR25DE Model) F
APPS2 EC Accelerator Pedal Position Sensor (QR25DE Model)
APPS3 EC Accelerator Pedal Position Sensor (QR25DE Model)
G
ASCD ACS Automatic Speed Control Device (ASCD) (QG18DE Model)
ASC/BS EC ASCD Brake Switch (QR25DE Model)
ASCBOF EC ASCD Brake Switch (QR25DE Model) H
ASCIND EC ASCD Indicator (QR25DE Model)
ASC/SW EC ASCD Steering Switch (QR25DE Model)
I
AT/C EC A/T Control (QG18DE Model)
ATDIAG EC A/T Diagnosis Communication Line (QG18DE Model)
AUDIO AV Audio J
BACK/L LT Back-up Lamp
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
PG
BRK/SW EC Brake Switch (QR25DE Model)
BYPS/V EC Vacuum Cut Valve Bypass Valve
CAN AT CAN Communication Line (QR25DE Model) L
CAN EC CAN Communication Line (QR25DE Model)
CAN LAN CAN Communication Line (QR25DE Model)
CHARGE SC Charging System M
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
COOL/F EC Cooling Fan Control
DEF GW Rear Window Defogger
DLC EC Data Link Connector (QR25DE Model)
D/LOCK BL Power Door Lock
DTRL LT Headlamp - With Daytime Light System (For Canada)
ECM/PW EC ECM Power Supply (QR25DE Model)
ECTS EC Engine Coolant Temperature Sensor
EGRC1 EC EGR Function (QG18DE Model)
EGVC/V EC EGR Volume Control Valve (QG18DE Model)
EGR/TS EC EGR Temperature Sensor (QG18DE Model)
ENGSS AT Engine Speed Signal
PG-41
HARNESS
Code Section Wiring Diagram Name
ETC1 EC Electric Throttle Control Function (QR25DE Model)
ETC2 EC Throttle Control Motor Relay (QR25DE Model)
ETC3 EC Throttle Control Motor (QR25DE Model)
F/FOG LT Front Fog Lamp
FLS1 EC Fuel Level Sensor Circuit
FLS2 EC Fuel Level Sensor Circuit
FLS3 EC Fuel Level Sensor Circuit (Ground)
F/PUMP EC Fuel Pump Control
FTS AT A/T Fluid Temperature Sensor
FTTS EC Fuel Tank Temperature Sensor
Fuel Injection System Function [QG18DE (Calif. CA Model) and QR25DE
FUEL EC
Model]
FUELB1 EC Fuel Injection System Function Bank1 [QG18DE (Except Calif. CA Model)]
FUELB2 EC Fuel Injection System Function Bank2 [QG18DE (Except Calif. CA Model)]
HEATER MTC Heater System
H/LAMP LT Headlamp
H/MIRR GW Heated Mirror
HO2S1 EC Heated Oxygen Sensor 1 (Front) (QR25DE Model)
HO2S1H EC Heated Oxygen Sensor 1 Heater (Front) (QR25DE Model)
Heated Oxygen Sensor 2 (Rear) [QG18DE (Calif. CA Model) and QR25DE
HO2S2 EC
Model]
Heated Oxygen Sensor 2 Heater (Rear) [QG18DE (Calif. CA Model) and
HO2S2H EC
QR25DE Model]
HO2S3 EC Heated Oxygen Sensor 3 [QG18DE (Calif. CA Model)]
HO2S3H EC Heated Oxygen Sensor 3 Heater [QG18DE (Calif. CA Model)]
HORN WW Horn
IATS EC Intake Air Temperature Sensor
IGN/SG EC Ignition Signal (QG18DE Model)
IGNSYS EC Ignition Signal (QR25DE Model)
ILL LT Illumination
INJECT EC Injector
INT/L LT Interior, Step, Spot, Vanity Mirror and Trunk Room Lamps
IVC EC Intake Valve Timing Control Solenoid Valve
IVCS EC Intake Valve Timing Control Position Sensor
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
LOAD EC Load Signal
LPSV AT Line Pressure Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN AT Main Power Supply and Ground Circuit
MAIN EC Main Power Supply and Ground Circuit
METER DI Speedometer, Tachometer, Temp., Oil, and Fuel Gauges
MIL EC Malfunction Indicator Lamp (QR25DE Model)
MIL/DL EC MIL & Data Link Connector (QG18DE Model)
MIRROR GW Power Door Mirror
PG-42
HARNESS
Code Section Wiring Diagram Name
A
NATS BL NVIS (Nissan Vehicle Immobilizer System -- NATS)
NONDTC AT Non-detectable Items
OVRCSV AT Overrun Clutch Solenoid Valve B
Heated Oxygen Sensor 1 Heater (Front) (Bank1) [QG18DE (Except Calif. CA
O2H1B1 EC
Model)]
Heated Oxygen Sensor 1 Heater (Front) (Bank2) [QG18DE (Except Calif. CA C
O2H1B2 EC
Model)]
Heated Oxygen Sensor 2 Heater (Rear) (Bank1) [QG18DE (Except Calif. CA
O2H2B1 EC
Model)]
D
Heated Oxygen Sensor 2 Heater (Rear) (Bank2) [QG18DE (Except Calif. CA
O2H2B2 EC
Model)]
O2S1B1 EC Heated Oxygen Sensor 1 (Front) (Bank1) [QG18DE (Except Calif. CA Model)] E
O2S1B2 EC Heated Oxygen Sensor 1 (Front) (Bank2) [QG18DE (Except Calif. CA Model)]
O2S2B1 EC Heated Oxygen Sensor 2 (Rear) (Bank1) [QG18DE (Except Calif. CA Model)]
O2S2B2 EC Heated Oxygen Sensor 2 (Rear) (Bank2) [QG18DE (Except Calif. CA Model)] F
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
G
PNP/SW AT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (POS) H
POWER PG Power Supply Routing
PRE/SE EC EVAP Control System Pressure Sensor
I
PST/SW EC Power Steering Oil Pressure Switch
ROOM/L LT Room Lamp
RP/SEN EC Refrigerant Pressure Sensor J
SEN/PW EC Sensor Power Supply (QR25DE Model)
SHIFT AT A/T Shift Lock System
PG
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
S/SIG EC Start Signal L
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
M
STOP/L LT Stop Lamp
SWL/S EC Swirl Control Valve Position Sensor [QG18DE (Calif. CA Model)]
SWL/V EC Swirl Control Valve [QG18DE (Calif. CA Model)]
TAIL/L LT Parking, License and Tail Lamps
TCCSIG AT A/T TCC Signal (Lock Up)
TCV AT Torque Converter Clutch Solenoid Valve
TLID BL Trunk Lid Opener
TPS AT Throttle Position Sensor
TPS EC Throttle Position Sensor
TPS1 EC Throttle Position Sensor (QR25DE Model)
TPS2 EC Throttle Position Sensor (QR25DE Model)
TPS3 EC Throttle Position Sensor (QR25DE Model)
TRSA/T AT Turbine Revolution Sensor (QR25DE Model)
PG-43
HARNESS
Code Section Wiring Diagram Name
TURN LT Turn Signal and Hazard Warning Lamps
VIAS EC Variable Air Induction Control System (QR25DE Model)
VEHSEC BL Vehicle Security System
VENT/V EC EVAP Canister Vent Control Valve
VSS EC Vehicle Speed Sensor
VSSA/T AT Vehicle Speed Sensor A/T (Revolution Sensor)
VSSMTR AT Vehicle Speed Sensor MTR
WARN DI Warning Lamps
WINDOW GW Power Window
WIPER WW Front Wiper and Washer
PG-44
ELECTRICAL UNITS LOCATION
ELECTRICAL UNITS LOCATION PFP:25230
A
Electrical Units Location EKS002CY
ENGINE COMPARTMENT
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0031E
PG-45
ELECTRICAL UNITS LOCATION
PASSENGER COMPARTMENT
WKIA0162E
PG-46
ELECTRICAL UNITS LOCATION
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0385E
PG-47
ELECTRICAL UNITS LOCATION
Fuse EKS002CZ
q If fuse is blown, be sure to eliminate cause of incident before
installing new fuse.
q Use fuse of specified rating. Never use fuse of more than speci-
fied rating.
q Do not partially install fuse; always insert it into fuse holder prop-
erly.
q Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not
used for a long period of time.
CEL083
Fusible Link EKS002D0
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
q If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of inci-
dent.
q Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl
or rubber parts. WKIA0254E
Circuit Breaker EKS002D1
For example, when current is 30A, the circuit is broken within 8 to 20
seconds.
A circuit breaker is used for the following systems:
q Power door locks
q Power sunroof
q Power windows
q Remote keyless entry system
SBF284E
PG-48
HARNESS CONNECTOR
HARNESS CONNECTOR PFP:24010
A
Description EKS002D2
HARNESS CONNECTOR (TAB-LOCKING TYPE)
q The tab-locking type connectors help prevent accidental looseness or disconnection. B
q The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the
illustration below.
Refer to the next page for description of the slide-locking type connector. C
CAUTION:
Do not pull the harness or wires when disconnecting the connector.
[Example]
D
E
F
G
H
I
J
PG
L
M
SEL769DA
PG-49
HARNESS CONNECTOR
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
q A new style slide-locking type connector is used on certain systems and components, especially those
related to OBD.
q The slide-locking type connectors help prevent incomplete locking and accidental looseness or discon-
nection.
q The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustra-
tion below.
CAUTION:
q Do not pull the harness or wires when disconnecting the connector.
q Be careful not to damage the connector support bracket when disconnecting the connector.
[Example]
AEL299C
PG-50
HARNESS CONNECTOR
HARNESS CONNECTOR (DIRECT-CONNECT SRS COMPONENT TYPE)
q SRS direct-connect type harness connectors are used on certain SRS components such as air bag mod- A
ules and seat belt pre-tensioners.
q Always pull up to release black locking tab prior to removing connector from SRS component.
q Always push down to lock black locking tab after installing connector to SRS component. When locked, B
the black locking tab is level with the connector housing.
CAUTION:
q Do not pull the harness or wires when removing connectors C
from SRS components.
D
E
WHIA0057E F
G
H
I
J
PG
L
M
PG-51
JOINT CONNECTOR
JOINT CONNECTOR PFP:B4341
Terminal Arrangement EKS002D3
QG18DE (EXC CALIF. CA MODEL)
WKIA0028E
PG-52
JOINT CONNECTOR
QG18DE (CALIF. CA MODEL)
A
B
C
D
E
F
G
H
I
J
PG
L
M
LEL649A
PG-53
JOINT CONNECTOR
QR25DE
WKIA0029E
PG-54
ELECTRICAL UNITS
ELECTRICAL UNITS PFP:23710
A
Terminal Arrangement EKS002D4
B
C
D
E
F
G
H
I
J
PG
L
M
WKIA0064E
PG-55
STANDARDIZED RELAY
STANDARDIZED RELAY PFP:25230
Description EKS002D5
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
SEL881H
TYPE OF STANDARDIZED RELAYS
SEL882H
1M 1 Make 2M 2 Make
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