2001 NISSAN PICK-UP warning light

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NEEC0002The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The SRS system composition which is available to NISSAN MODEL D22 is as follows (The composition var-
ies according to the destination and optional equipment.):
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), seat belt pre-tensioner, a diagnosis sensor unit, warning lamp,
wiring harness and spiral cable.
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+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 performed
by an authorized NISSAN dealer.
+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 RS section.
+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 harness connector.
Precautions for On Board Diagnostic (OBD)
System of Engine
NEEC0003The 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:
+Be sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc.
will cause the MI to light up.
+Be 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.)
+Certain 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 to EL section, ªHARNESS CONNECTORº.
+Be 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.
+Be 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 injection system, etc.
+Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
PRECAUTIONSKA24DE (EURO OBD)
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
EC-3012

Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but
all of the data listed above, are cleared from the ECM memory during work procedures.
NVIS (Nissan Vehicle Immobilizer System Ð
NATS)
NEEC1601
SEF515Y
+If the security indicator lights up with the ignition switch in the ªONº position or ªNATS MALFUNC-
TIONº is displayed on ªSELF-DIAG RESULTSº screen, perform self-diagnostic results mode with
CONSULT-II using NATS program card. Refer to ªNVIS (Nissan Vehicle Immobilizer System Ð
NATS)º in EL section.
+Confirm no self-diagnostic results of NVIS (NATS) is displayed before touching ªERASEº in ªSELF-
DIAG RESULTSº mode with CONSULT-II.
+When replacing ECM, initialization of NVIS (NATS) system and registration of all NVIS (NATS) igni-
tion key IDs must be carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of NVIS (NATS)
initialization and NVIS (NATS) ignition key ID registration, refer to CONSULT-II operation manual,
IVIS/NVIS.
Malfunction Indicator (MI)
DESCRIPTIONNEEC0032
SAT652J
The MI is located on the instrument panel.
1. The MI will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
+If the MI does not light up, refer to EL section, ªWARNING LAMPSº or see EC-3396.
2. When the engine is started, the MI should go off.
If the MI remains on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnostic System FunctionNEEC0032S07The on board diagnostic system has the following four functions.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Emission-related Diagnostic Information
EC-3061

Diagnostic Test
ModeKEY and ENG.
StatusFunction Explanation of Function
Mode I Ignition switch in
ªONº position
Engine stopped
BULB CHECK This function checks the MI bulb for damage (blown,
open circuit, etc.).
If the MI does not come on, check MI circuit.
Engine running
MALFUNCTION WARNING This is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MI will light up to inform the driver
that a malfunction has been detected. The following mal-
functions will light up or blink the MI in the 1st trip.
+ªMisfire (Possible three way catalyst damage)º
+ªClosed loop controlº
+Fail-safe mode
Mode II Ignition switch in
ªONº position
Engine stopped
SELF-DIAGNOSTIC RESULTS This function allows DTCs and 1st trip DTCs to be read.
Engine running
HEATED OXYGEN SENSOR 1
MONITORThis function allows the fuel mixture condition (lean or
rich), monitored by heated oxygen sensor 1, to be read.
MI Flashing without DTCNEEC0032S0701If the ECM is in Diagnostic Test Mode II, MI may flash when engine is running. In this case, check ECM diag-
nostic test mode. How to Switch Diagnostic Test Mode.
How to switch the diagnostic test (function) modes, and details of the above functions are described later. How
to Switch Diagnostic Test Mode.
The following emission-related diagnostic information is cleared when the ECM memory is erased.
1. Diagnostic trouble codes
2. 1st trip diagnostic trouble codes
3. Freeze frame data
4. 1st trip freeze frame data
5. System readiness test (SRT) codes
6. Test values
7. Others
How to Switch Diagnostic Test ModeNEEC0032S08NOTE:
+It is better to count the time accurately with a clock.
+It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
+Always ECM returns to Diagnostic Test Mode I after ignition switch is turned ªOFFº.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
NEEC0032S08011. Confirm that accelerator pedal is fully released, turn ignition switch ªONº and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
1) Fully depress the accelerator pedal.
2) Fully release the accelerator pedal.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Malfunction Indicator (MI)
EC-3062

+Erasing the emission-related diagnostic information using CONSULT-II is easier and quicker than
switching the diagnostic test mode using the data link connector.
NATS (Nissan Anti-Theft System)
+If the security indicator lights up with the ignition switch
in the ªONº position or ªNATS MALFUNCTIONº is dis-
played on ªSELF-DIAG RESULTSº screen, perform self-
diagnostic results mode with CONSULT-II using NATS
program card. Refer to ªNATS (Nissan Anti-Theft Sys-
tem)º in EL section.
+Confirm no self-diagnostic results of NATS is displayed
before touching ªERASEº in ªSELF-DIAG RESULTSº
mode with CONSULT-II.
+When replacing ECM, initialization of NATS system and
registration of all NATS ignition key IDs must be carried
out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle
owner. Regarding the procedures of NATS initialization
and NATS ignition key ID registration, refer to CON-
SULT-II operation manual, NATS.
Malfunction Indicator Lamp (MIL)
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON
without the engine running. This is a bulb check.
+If the MIL does not light up, refer to EL section (ªWARNING
LAMPS AND CHIMEº) or see EC-3647.
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
Fuel filter switch is equipped except for Europe.
If MIL illuminates or blinks irregularly after starting engine,
water may have accumulated in fuel filter. Drain water from
fuel filter. Refer to EC-3426.
On board diagnostic system function
The on board diagnostic system has the following three func-
tions.
SEF252Z
SAT652J
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONYD25DDTi
Diagnostic Trouble Code (DTC) (Cont'd)
EC-3429

Diagnostic Test Mode KEY and ENG. Status Function Explanation of Function
Mode I Ignition switch in ON
position
Engine stopped
BULB CHECK This function checks the MIL bulb for dam-
age (blown, open circuit, etc.).
If the MIL does not come on, check MIL cir-
cuit. (See EC-3647.)
Engine running
MALFUNCTION
WARNINGThis is a usual driving condition. When ECM
detects a malfunction, the MIL will light up to
inform the driver that a malfunction has been
detected.
Mode II Ignition switch in ON
position
Engine stopped
SELF-DIAGNOSTIC RESULTS This function allows DTCs to be read.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONYD25DDTi
Malfunction Indicator Lamp (MIL) (Cont'd)
EC-3430

ELECTRICAL SYSTEM
SECTION
EL
MODIFICATION NOTICE:
+Wiring diagrams have been changed.
+Combination meter has been changed.
+Headlamp has been changed.
+Headlamp aiming control has been added.
+Headlamp washer has been added.
+A hazard reminder feature has been added to the multi-remote control system.
+NATS (Nissan Anti-Theft System) has been changed.
CONTENTS
PRECAUTIONS................................................... 3004
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER².. 3004
POWER SUPPLY ROUTING............................... 3005
Schematic ........................................................ 3005
Wiring Diagram - POWER -............................. 3006
BATTERY............................................................. 3013
Service Data and Specifications (SDS) ........... 3013
STARTING SYSTEM........................................... 3014
Wiring Diagram - START -/M/T Models .......... 3014
Construction ..................................................... 3015
Service Data and Specifications (SDS) ........... 3017
CHARGING SYSTEM.......................................... 3018
Wiring Diagram - CHARGE -/Diesel Engine ... 3018
Wiring Diagram - CHARGE - (KA engine) ...... 3019
Construction ..................................................... 3020
Service Data and Specifications (SDS) ........... 3022
HEADLAMP - Conventional Type -................... 3023
Wiring Diagram - H/LAMP -/LHD Models ........ 3023
Wiring Diagram - H/LAMP -/RHD Models ....... 3025
Bulb Replacement............................................ 3027
Aiming Adjustment ........................................... 3027
Low Beam ........................................................ 3028
HEADLAMP - Daytime Light System -............. 3029
Wiring Diagram - DTRL - ................................. 3029
Bulb Replacement............................................ 3032
Aiming Adjustment ........................................... 3032
HEADLAMP - Dim-dip Lamp System -............. 3033Wiring Diagram - DIMDIP -.............................. 3033
Bulb Replacement............................................ 3036
Aiming Adjustment ........................................... 3036
HEADLAMP - Headlamp Aiming Control -....... 3037
Wiring Diagram - H/AIM - ................................ 3037
PARKING, LICENSE AND TAIL LAMPS........... 3039
Wiring Diagram - TAIL/L -/Except LHD Models
for Europe ........................................................ 3039
Wiring Diagram - TAIL/L -/LHD Models for
Europe.............................................................. 3041
STOP LAMP........................................................ 3043
Wiring Diagram - STOP/L - ............................. 3043
BACK-UP LAMP.................................................. 3044
Wiring Diagram - BACK/L -/M/T Models ......... 3044
REAR FOG LAMP............................................... 3045
Wiring Diagram - R/FOG -/LHD Models .......... 3045
Wiring Diagram - R/FOG -/RHD Models ......... 3046
TURN SIGNAL AND HAZARD WARNING
LAMPS................................................................. 3047
Wiring Diagram - TURN - ................................ 3047
Trouble Diagnoses ........................................... 3049
ILLUMINATION.................................................... 3050
Wiring Diagram - ILL -/LHD Models ................ 3050
Wiring Diagram - ILL -/RHD Models................ 3052
INTERIOR ROOM LAMP..................................... 3054
Wiring Diagram - ROOM/L - ............................ 3054
SPOT LAMP........................................................ 3055
Wiring Diagram - INT/L - ................................. 3055

EL

METER AND GAUGES....................................... 3056
System Description .......................................... 3056
Combination Meter/With Tachometer .............. 3057
Combination Meter/Without Tachometer ......... 3058
Schematic/With Tachometer ............................ 3059
Schematic/Without Tachometer ....................... 3060
Construction ..................................................... 3061
Wiring Diagram - METER -/Gasoline Engine
with Tachometer .............................................. 3062
Wiring Diagram - METER -/Gasoline Engine
without Tachometer ......................................... 3064
Wiring Diagram - METER -/LHD Diesel Engine
Models with Tachometer.................................. 3065
Wiring Diagram - METER -/RHD Diesel
Engine Models with Tachometer ..................... 3067
Wiring Diagram - METER -/Diesel Engine
without Tachometer ......................................... 3069
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode ................ 3070
Trouble Diagnoses/With Tachometer .............. 3071
Trouble Diagnoses/Without Tachometer ......... 3076
WARNING LAMPS.............................................. 3081
Schematic/With Tachometer ............................ 3081
Schematic/Without Tachometer ....................... 3082
Wiring Diagram - WARN -/Gasoline Engine
with Tachometer .............................................. 3083
Wiring Diagram - WARN -/Gasoline Engine
without Tachometer ......................................... 3087
Wiring Diagram - WARN -/Diesel Engine with
Tachometer ...................................................... 3091
Wiring Diagram - WARN -/Diesel Engine
without Tachometer ......................................... 3095
A/T INDICATOR................................................... 3100
Wiring Diagram - AT/IND -/RHD Models ......... 3100
Wiring Diagram - CHIME -/LHD Models.......... 3101
Wiring Diagram - CHIME -/RHD Models ......... 3102
FRONT WIPER AND WASHER.......................... 3103
Wiring Diagram - WIPER -/Without Intermittent
for Floor-shift .................................................... 3103
Wiring Diagram - WIPER -/Without Intermittent
for RHD Column-shift Models .......................... 3106
HEADLAMP WASHER........................................ 3108
Wiring Diagram - HLC - ................................... 3108
HORN................................................................... 3109
Wiring Diagram - HORN -................................ 3109
CIGARETTE LIGHTER........................................ 3110
Wiring Diagram - CIGAR - ............................... 3110
CLOCK................................................................. 3111
Wiring Diagram - CLOCK - .............................. 3111
REAR WINDOW DEFOGGER AND MIRROR
DEFOGGER......................................................... 3112
Wiring Diagram - DEF - ................................... 3112
AUDIO.................................................................. 3113
Wiring Diagram - AUDIO -/LHD Models .......... 3113Wiring Diagram - AUDIO -/RHD Models ......... 3114
AUDIO ANTENNA............................................... 3115
Power Antenna/Wiring Diagram - P/ANT - ...... 3115
POWER DOOR MIRROR.................................... 3116
Wiring Diagram - MIRROR -/LHD Models....... 3116
Wiring Diagram - MIRROR -/RHD Models ...... 3117
HEATED SEAT.................................................... 3118
Wiring Diagram - H/SEAT - ............................. 3118
POWER WINDOW............................................... 3120
Schematic/Without Interruption Detection
Function ........................................................... 3120
Schematic/With Interruption Detection
Function ........................................................... 3121
Wiring Diagram - WINDOW -/Without
Interruption Detection Function........................ 3122
Wiring Diagram - WINDOW -/With Interruption
Detection Function ........................................... 3126
Trouble Diagnoses/Without Interruption
Detection Function ........................................... 3130
Trouble Diagnoses/With Interruption Detection
Function ........................................................... 3131
POWER DOOR LOCK......................................... 3133
Wiring Diagram - D/LOCK - ............................. 3133
MULTI-REMOTE CONTROL SYSTEM............... 3135
System Description .......................................... 3135
MULTI-REMOTE CONTROL SYSTEM............... 3136
Wiring Diagram - MULTI - ............................... 3136
Trouble Diagnoses ........................................... 3137
ID Code Entry Procedure ................................ 3139
Remote Controller Battery Replacement ......... 3140
THEFT WARNING SYSTEM............................... 3141
Wiring Diagram - PRWIRE - ............................ 3141
NATS (Nissan Anti-Theft System).................... 3142
Component Parts and Harness Connector
Location............................................................ 3142
System Description .......................................... 3143
System Composition ........................................ 3144
Wiring Diagram - NATS -/LHD Models............ 3145
Wiring Diagram - NATS -/RHD Diesel Engine
Models.............................................................. 3146
CONSULT-II ..................................................... 3147
Trouble Diagnoses ........................................... 3149
How to Replace NATS IMMU .......................... 3160
LOCATION OF ELECTRICAL UNITS................. 3161
Engine Compartment ....................................... 3161
Passenger Compartment ................................. 3162
HARNESS LAYOUT............................................ 3164
Main Harness ................................................... 3164
Engine Room Harness..................................... 3174
Engine Control Harness/KA engine ................. 3182
Engine Control Harness................................... 3184
Engine Harness ............................................... 3185
Alternator Harness ........................................... 3187
Instrument Harness.......................................... 3189
EL-3002

Wiring Diagram Ð CHIME Ð/LHD Models
LIGHT WARNING BUZZER
GEL420A
A/T INDICATOR
EL-3101