Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Altima 2000-2005 Approved Nissan Altima 2001 EL
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ELECTRICAL SYSTEM
EL
GI
SECTION MA
EM
When you read wiring diagrams:
b Read GI section, ``HOW TO READ WIRING DIAGRAMS''.
When you perform trouble diagnoses, read GI section, ``HOW TO FOLLOW FLOW LC
CHART IN TROUBLE DIAGNOSES'' and ``HOW TO PERFORM EFFICIENT DIAGNO-
SIS FOR AN ELECTRICAL INCIDENT''.
b Check for any service bulletins before servicing the vehicle.
EC
FE
CONTENTS
CL
PRECAUTIONS AND PREPARATION....................... 4 Trouble Diagnoses ................................................ 39
Supplemental Restraint System (SRS) ``AIR Diagnostic Procedure 1 .................................... 39
BAG'' and ``SEAT BELT PRE-TENSIONER''.......... 4 Diagnostic Procedure 2 .................................... 40 MT
Special Service Tool ............................................... 4 Minimum Specification of Cranking Voltage
HARNESS CONNECTOR........................................... 5 Referencing Coolant Temperature.................... 40
AT
Description .............................................................. 5 Construction .......................................................... 41
STANDARDIZED RELAY ........................................... 7 Removal and Installation ...................................... 41
Description .............................................................. 7 Pinion/Clutch Check.............................................. 41 FA
POWER SUPPLY ROUTING .................................... 10 Service Data and Specifications (SDS)................ 42
Schematic ............................................................. 10 CHARGING SYSTEM ............................................... 43
Wiring Diagram -- POWER --............................. 12 System Description ............................................... 43 RA
Fuse ...................................................................... 18 Wiring Diagram -- CHARGE -- ........................... 44
Fusible Link........................................................... 18 Trouble Diagnoses with
Circuit Breaker Inspection..................................... 18 Battery/Starting/Charging System Tester.............. 45
BR
GROUND DISTRIBUTION........................................ 20 Diagnostic Result Item Chart ........................... 47
Main Harness........................................................ 20 Work Flow......................................................... 48 ST
Engine Room Harness.......................................... 22 Trouble Diagnoses ................................................ 49
Engine Control Harness........................................ 24 Diagnostic Procedure 1 .................................... 49
Body Harness ....................................................... 25 Diagnostic Procedure 2 .................................... 50 RS
Tail Harness .......................................................... 26 Diagnostic Procedure 3 .................................... 51
BATTERY .................................................................. 27 Construction .......................................................... 52
How to Handle Battery.......................................... 27 Removal and Installation ...................................... 53 BT
Service Data and Specifications (SDS)................ 30 Service Data and Specifications (SDS)................ 53
Trouble Diagnoses with COMBINATION SWITCH.......................................... 54 HA
Battery/Starting/Charging System Tester.............. 30 Combination Switch/Check ................................... 54
Diagnostic Result Item Chart ........................... 32 Replacement ......................................................... 55
STARTING SYSTEM ................................................ 33 Steering Switch/Check.......................................... 56 EL
System Description ............................................... 33 HEADLAMP .............................................................. 57
Wiring Diagram -- START -- ............................... 34 System Description (For USA) ............................. 57
Trouble Diagnoses with Wiring Diagram (For USA) -- H/LAMP -- ........... 58 IDX
Battery/Starting/Charging System Tester.............. 36 Trouble Diagnoses ................................................ 59
Diagnostic Result Item Chart ........................... 37 Bulb Replacement................................................. 60
Work Flow......................................................... 38 Aiming Adjustment ................................................ 61
CONTENTS (Cont'd.)
HEADLAMP -- Daytime Light System -- ............. 62 Meter/Gauge Operation and Odo/Trip Meter
System Description (For Canada) ........................ 62 Segment Check in Diagnosis Mode ................... 106
Operation (For Canada)........................................ 63 Trouble Diagnosis ............................................... 107
Schematic (For Canada)....................................... 64 Electrical Components Inspection ...................... 112
Wiring Diagram (For Canada) -- DTRL -- .......... 65 WARNING LAMPS ................................................. 114
Trouble Diagnoses (For Canada) ......................... 68 System Description ............................................. 114
Bulb Replacement................................................. 69 Schematic ........................................................... 116
Aiming Adjustment ................................................ 69 Wiring Diagram -- WARN --.............................. 117
PARKING, LICENSE AND TAIL LAMPS................. 70 Electrical Components Inspection ...................... 120
Wiring Diagram -- TAIL/L -- ................................ 70 WARNING CHIME .................................................. 121
Bulb Replacement................................................. 72 Component Parts and Harness Connector
STOP LAMP ............................................................. 73 Location............................................................... 121
Wiring Diagram -- STOP/L --.............................. 73 System Description ............................................. 122
BACK-UP LAMP....................................................... 74 Wiring Diagram -- CHIME --............................. 124
Wiring Diagram -- BACK/L --.............................. 74 Trouble Diagnoses .............................................. 126
FRONT FOG LAMP.................................................. 75 Electrical Components Inspection ...................... 133
System Description ............................................... 75 FRONT WIPER AND WASHER ............................. 134
Wiring Diagram -- F/FOG -- ............................... 76 System Description ............................................. 134
Aiming Adjustment ................................................ 77 Wiring Diagram -- WIPER --............................. 136
CORNERING LAMPS............................................... 78 Trouble Diagnoses .............................................. 138
Wiring Diagram -- CORNER --........................... 78 Removal and Installation .................................... 140
Bulb Replacement................................................. 79 Washer Nozzle Adjustment................................. 141
TURN SIGNAL AND HAZARD WARNING Washer Tube Layout........................................... 141
LAMPS ...................................................................... 80 HORN ...................................................................... 142
System Description ............................................... 80 Wiring Diagram -- HORN --.............................. 142
Wiring Diagram -- TURN -- ................................ 82 CIGARETTE LIGHTER........................................... 143
Trouble Diagnoses ................................................ 84 Wiring Diagram -- CIGAR -- ............................. 143
Electrical Components Inspection ........................ 84 REAR WINDOW DEFOGGER................................ 145
ILLUMINATION ......................................................... 85 Component Parts and Harness Connector
System Description ............................................... 85 Location............................................................... 145
Wiring Diagram -- ILL --...................................... 86 System Description ............................................. 146
INTERIOR ROOM LAMP.......................................... 88 Wiring Diagram -- DEF -- ................................. 148
Component Parts and Harness Connector Trouble Diagnoses (For models with power
Location................................................................. 88 door locks) .......................................................... 150
System Description ............................................... 89 Trouble Diagnoses (For models without power
Wiring Diagram -- ROOM/L -- ............................ 92 door locks) .......................................................... 153
Trouble Diagnoses (For models with power Electrical Components Inspection ...................... 154
door lock) .............................................................. 95 Filament Check ................................................... 154
SPOT, TRUNK ROOM AND VANITY MIRROR Filament Repair................................................... 155
LAMPS ...................................................................... 97 AUDIO ..................................................................... 157
Wiring Diagram -- INT/L --.................................. 97 System Description ............................................. 157
METER AND GAUGES ............................................ 99 Wiring Diagram -- AUDIO -- ............................. 158
Component Parts and Harness Connector Trouble Diagnoses .............................................. 160
Location................................................................. 99 Inspection............................................................ 161
System Description ............................................... 99 Location of Antenna ............................................ 161
Combination Meter.............................................. 102 AUDIO ANTENNA .................................................. 162
Schematic ........................................................... 103 Window Antenna Repair ..................................... 162
Combination Meter.............................................. 104 ELECTRIC SUNROOF ........................................... 163
Wiring Diagram -- METER --............................ 105 Wiring Diagram -- SROOF --............................ 163
TRUNK LID OPENER............................................. 165
EL-2
CONTENTS (Cont'd.)
Wiring Diagram -- TLID ..................................... 165 Schematic ........................................................... 233
POWER DOOR MIRROR ....................................... 166 Wiring Diagram -- VEHSEC --.......................... 234
GI
Wiring Diagram -- MIRROR --.......................... 166 Trouble Diagnoses .............................................. 238
POWER SEAT ........................................................ 167 SMART ENTRANCE CONTROL UNIT .................. 250 MA
Wiring Diagram -- SEAT -- ............................... 167 Description .......................................................... 250
AUTOMATIC SPEED CONTROL DEVICE Input/Output Operation Signal ............................ 251
(ASCD) .................................................................... 168 Input/Output Operation Signal ............................ 252 EM
Component Parts and Harness Connector Schematic ........................................................... 253
Location............................................................... 168 INTEGRATED HOMELINK TRANSMITTER .......... 255
System Description ............................................. 169 Wiring Diagram -- TRNSMT --.......................... 255 LC
Schematic ........................................................... 171 Trouble Diagnoses .............................................. 256
Wiring Diagram -- ASCD --............................... 172 NVIS (NISSAN VEHICLE IMMOBILIZER
EC
Fail-safe System Description .............................. 175 SYSTEM -- NATS) ................................................. 257
Fail-Safe System Check ..................................... 176 Component Parts and Harness Connector
Trouble Diagnoses .............................................. 177 Location............................................................... 257 FE
ASCD Wire Adjustment....................................... 183 System Description ............................................. 258
Electrical Components Inspection ...................... 184 System Composition ........................................... 258
POWER WINDOW .................................................. 185 Wiring Diagram -- NATS -- ............................... 259 CL
System Description ............................................. 185 CONSULT-II ........................................................ 260
Wiring Diagram -- WINDOW --......................... 187 Trouble Diagnoses .............................................. 263
MT
Trouble Diagnoses .............................................. 189 How to Replace NATS IMMU ............................. 272
POWER DOOR LOCK............................................ 190 LOCATION OF ELECTRICAL UNITS.................... 273
Component Parts and Harness Connector Engine Compartment .......................................... 273 AT
Location............................................................... 190 Passenger Compartment .................................... 274
System Description ............................................. 191 HARNESS LAYOUT ............................................... 276
Schematic ........................................................... 193 Outline................................................................. 276 FA
Wiring Diagram -- D/LOCK -- ........................... 194 How to Read Harness Layout ............................ 277
Trouble Diagnoses .............................................. 197 Main Harness...................................................... 278
MULTI-REMOTE CONTROL SYSTEM .................. 205 Engine Room Harness........................................ 280
RA
Component Parts and Harness Connector Engine Control Harness...................................... 283
Location............................................................... 205 Engine No. 2 Harness ........................................ 285 BR
System Description ............................................. 206 Body Harness ..................................................... 286
Schematic ........................................................... 209 Tail Harness ........................................................ 288
Wiring Diagram -- MULTI -- .............................. 210 Room Lamp ........................................................ 289 ST
Trouble Diagnoses .............................................. 214 Door Harness (LH side)...................................... 290
Electrical Components Inspection ...................... 224 Door Harness (RH side) ..................................... 291
ID Code Entry Procedure ................................... 225 BULB SPECIFICATIONS ....................................... 292 RS
Remote Controller Battery Replacement............ 227 Headlamp............................................................ 292
VEHICLE SECURITY (THEFT WARNING) Exterior Lamp...................................................... 292 BT
SYSTEM.................................................................. 228 Room Lamp ........................................................ 292
Component Parts and Harness Connector WIRING DIAGRAM CODES (CELL CODES)........ 293
Location............................................................... 228 HA
System Description ............................................. 230
WIRING DIAGRAM REFERENCE CHART
EL
ENGINE CONTROL SYSTEM ....................................................................................... EC SECTION
A/T CONTROL, SHIFT LOCK CONTROL .................................................................... AT SECTION
ANTI-LOCK BRAKE SYSTEM ...................................................................................... BR SECTION IDX
SRS ``AIR BAG'' ............................................................................................................ RS SECTION
HEATER AND AIR CONDITIONER .............................................................................. HA SECTION
EL-3
PRECAUTIONS AND PREPARATION
Supplemental Restraint System (SRS)
``AIR BAG'' and ``SEAT BELT
PRE-TENSIONER''
The Supplemental Restraint System such as ``AIR BAG'' and ``SEAT BELT PRE-TENSIONER'' used along
with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. The SRS composition which is available to NISSAN MODEL L30 is as follows (the
composition varies according to the optional equipment):
b For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side),
front seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
b For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side
of front seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for
a frontal collision), wiring harness, warning lamp (one of components of air bags for a frontal collsion).
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
b 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 should
be performed by an authorized NISSAN dealer.
b Improper maintenance, including incorrect removal and installation of the SRS, can lead to
personal injury caused by unintentional activation of the system. For removal of Spiral Cable
and Air Bag Module, see the RS section.
b Do not use electrical test equipment on any circuit related to the SRS unless instructed to in
this Service Manual. Spiral cable and wiring harnesses (except ``SEAT BELT PRE-TEN-
SIONER'') covered with yellow insulation either just before the harness connectors or for the
complete harness are related to the SRS.
Special Service Tool
Tool number
Description
Tool name
J-44373 Model 620
Battery/Starting/Charging
system tester
SEL403X
EL-4
HARNESS CONNECTOR
Description
HARNESS CONNECTOR (TAB-LOCKING TYPE)
GI
b The tab-locking type connectors help prevent accidental looseness or disconnection.
b The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to
illustration below.
MA
Refer to the next page for description of the slide-locking type connector.
CAUTION:
Do not pull the harness when disconnecting the connector. EM
[Example]
LC
EC
FE
CL
MT
AT
FA
RA
BR
ST
RS
BT
HA
EL
IDX
SEL769DA
EL-5
HARNESS CONNECTOR
Description (Cont'd)
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
b A new style slide-locking type connector is used on certain systems and components, especially those
related to OBD.
b The slide-locking type connectors help prevent incomplete locking and accidental looseness or dis-
connection.
b The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to illustra-
tion below.
CAUTION:
b Do not pull the harness or wires when disconnecting the connector.
b Be careful not to damage the connector support bracket when disconnecting the connector.
[Example]
SEL769V
EL-6
STANDARDIZED RELAY
Description
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
GI
Relays can be divided into three main types: normal open, normal closed and mixed type relays.
MA
EM
LC
EC
FE
CL
MT
SEL881H
AT
TYPES OF STANDARDIZED RELAYS FA
1M .................... 1 Make 2M .................... 2 Make
1T .................... 1 Transfer 1M 1B .................... 1 Make 1 Break RA
BR
ST
RS
BT
HA
EL
IDX
SEL882H
EL-7
STANDARDIZED RELAY
Description (Cont'd)
AEL039B
EL-8
STANDARDIZED RELAY
NOTES
GI
MA
EM
LC
EC
FE
CL
MT
AT
FA
RA
BR
ST
RS
BT
HA
EL
IDX
EL-9
POWER SUPPLY ROUTING
Schematic
WEL036A
EL-10
POWER SUPPLY ROUTING
Schematic (Cont'd)
GI
MA
EM
LC
EC
FE
CL
MT
AT
FA
RA
BR
ST
RS
BT
HA
EL
IDX
WEL037A
EL-11
POWER SUPPLY ROUTING
Wiring Diagram -- POWER --
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