engine NISSAN PICK-UP 2001 Repair Manual

CONSULT-II Reference Value in Data Monitor
Mode
Remarks: Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
FUEL TEMP SEN+Engine: After warming up More than 40ÉC (104ÉF)
SPILL/V+Engine: After warm-
ing upIdle Approx. 13ÉCA
INJ TIMG C/V+Engine: After warming up,
idle the engine.Approx. 50 - 70%
DECELER F/CUT+Engine: After warm-
ing upIdle OFF
BARO SEN+Ignition switch: ONAltitude
Approx.0m(0ft): Approx. 100.62 kPa (1.0062 bar, 1.026 kg/cm
2, 14.59
psi)
Approx. 1,000 m (3,281 ft): Approx. 88.95 kPa (0.8895 bar, 0.907 kg/cm
2,
12.90 psi)
Approx. 1,500 m (4,992 ft): Approx. 83.16 kPa (0.8316 bar, 0.848 kg/cm
2,
12.06 psi)
Approx. 2,000 m (6,562 ft): Approx. 78.36 kPa (0.7836 bar, 0.799 kg/cm
2,
11.36 psi)
ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
33 G/YElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.4V
40 PUElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.4V
52 L/WElectronic control fuel
injection pumpEngine is running.
Idle speedApproximately 0.1V
53 L/RElectronic control fuel
injection pumpEngine is running.
Idle speedApproximately 0.45V
Engine is running.
Engine speed is 2,000 rpmApproximately 0.7V
On Board Diagnosis Logic
Malfunction is detected when .... Check Items (Possible cause)
+Fuel cut control system does not function properly.+Harness or connectors
(Electronic control fuel circuit is open or shorted.)
+Electronic control fuel
DTC 1004 FUEL CUT SYSTEM1YD25DDTi
EC-3615

DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
4) Turn ignition switch ªOFFº, wait at least 5 seconds and then
turn ªONº.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-3620.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
3) Turn ignition switch ªOFFº, wait at least 5 seconds and then
turn ªONº.
4) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º
with ECM.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-3620.
SEF817Y
DTC 1004 FUEL CUT SYSTEM1YD25DDTi
EC-3616

4 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E236, M278 (LHD models)
+Harness connectors E236, F35 (RHD models)
+Harness for open or short between electronic control fuel injection pump and engine ground
cRepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK COMMUNICATION LINE FOR OPEN AND SHORT
1. Check continuity between the following terminals. Refer to Wiring Diagram.
MTBL0444
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 7.
NGcGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E237, M279 (LHD models)
+Harness connectors E237, F36 (RHD models)
+Harness for open or short between electronic control fuel injection pump and ECM
cRepair open circuit or short to ground or short to power in harness or connectors.
7 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3469.
OK or NG
OKcReplace electronic control fuel injection pump.
NGcRepair open circuit or short to ground or short to power in harness or connectors.
DTC 1004 FUEL CUT SYSTEM1YD25DDTi
Diagnostic Procedure (Cont'd)
EC-3620

Description
SYSTEM DESCRIPTION
Sensor Input Signal to ECMECM
FunctionActuator
Crankshaft position
sensor (TDC)Engine speed
Glow
controlGlow lamp,
Glow relay
¯
Glow plugs Engine coolant tem-
perature sensorEngine coolant tem-
perature
When engine coolant temperature is more than approximately
75ÉC (167ÉF), the glow relay turns off, inactivating the quick-glow
control until coolant temperature drops below approximately
55ÉC (131ÉF).
When coolant temperature is lower than approximately 75ÉC
(167ÉF):
+Ignition switch ON
After ignition switch has turned to ON, the glow relay turns
ON for a certain period of time in relation to engine coolant
temperature, allowing current to flow through glow plug.
+Cranking
The glow relay turns ON, allowing current to flow through
glow plug.
+Starting
After engine has started, current continues to flow through
glow plug (after-glow mode) for a certain period in relation to
engine coolant temperature.
When engine speed exceeds approximately 4,800 rpm, cur-
rent flow through glow plug is interrupted.
The glow indicator lamp turns ON for a certain period of time in
relation to engine coolant temperature at the time glow relay is
turned ON.
COMPONENT DESCRIPTION
Glow plug
+The glow plug is provided with a ceramic heating element to
obtain a high-temperature resistance. It glows in response to
a signal sent from the ECM, allowing current to flow through
the glow plug via the glow relay.
SEF376Y
GLOW CONTROL SYSTEMYD25DDTi
EC-3621

Diagnostic Procedure
1 INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OKcGO TO 2.
NGcCorrect.
2 CHECK INSTALLATION
Check that all glow plug connecting plate nuts are installed properly.
SEC250D
OK or NG
OK (With CONSULT-II)cGO TO 3.
OK (Without CONSULT-II)cGO TO 4.
NGcInstall properly.
3 CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªCOOLAN TEMP/Sº in ªDATA MONITORº mode with CONSULT-II.
3. Confirm that ªCOOLAN TEMP/Sº indicates below 75ÉC (167ÉF). If it indicates above 75ÉC (167ÉF), cool down engine.
SEF013Y
4. Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
5. Make sure that glow indicator lamp is turned ªONº for 1.5 seconds or more after turning ignition switch ªONº, and then turned
ªOFFº.
OK or NG
OKcGO TO 5.
NGcGO TO 6.
4 CHECK GLOW INDICATOR LAMP OPERATION
GLOW CONTROL SYSTEMYD25DDTi
EC-3624

Without CONSULT-II
1. Turn ignition switch ªONº.
2. Confirm that the voltage between ECM terminal 19 and ground is above 1.36V. If it is below 1.36V, cool down engine.
SEF430Y
3. Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
4. Make sure that glow indicator lamp is turned ªONº for 1.5 seconds or more after turning ignition switch ªONº, and then turned
ªOFFº.
OK or NG
OKcGO TO 5.
NGcGO TO 6.
5 CHECK GLOW CONTROL SYSTEM OVERALL FUNCTION
1. Turn ignition switch ªOFFº.
2. Set voltmeter probe between glow plug and engine body.
3. Turn ignition switch ªONº.
4. Check the voltage between glow plug and engine body under the following conditions.
SEC251D
OK or NG
OKcINSPECTION END
NGcGO TO 11.
GLOW CONTROL SYSTEMYD25DDTi
Diagnostic Procedure (Cont'd)
EC-3625

Component Description
The heat up switch is located on the lower side of the instrument
panel. This switch is used to speed up the heater's operation
when the engine is cold.
When the ECM received the heat up switch ªONº signal, the
ECM increases the engine idle speed to 1,100 to 1,200 rpm to
warm up engine quickly.
This system works when all conditions listed below are met.
Heat up switch ON
Engine coolant temperature Below 105ÉC (221ÉF)
Shift lever ªPº or ªNº
Accelerator pedal Fully released
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
WARM UP SW+Ignition switch: ONHeat up switch: ON ON
Heat up switch: OFF OFF
ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse
Signal)
59 BR/R Heat up switchIgnition switch ªONº
Heat up switch is ªOFFº.0V
Ignition switch ªONº
Heat up switch is ªONº.BATTERY VOLTAGE
(11 - 14V)
SEC235D
HEAT UP SWITCHYD25DDTi
EC-3638

General Specifications
Unit: rpm
EngineYD25DDTi
Idle speed750 25
Maximum engine speed4,900
Injection Pump Numbers
Engine Part number
YD25DDTi 16700 VK500
Injection Nozzle
Unit: kPa (bar, kg/cm2, psi)
Initial injection pressureUsed 18,500 - 19,500 (185 - 195, 189 - 199, 2,682 - 2,828)
New 19,500 - 20,500 (195 - 205, 199 - 209, 2,828 - 2,973)
Limit 16,200 (162, 165, 2,349)
Engine Coolant Temperature Sensor
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.0
90 (194) 0.236 - 0.260
Intake Air Temperature Sensor
Intake air temperature ÉC (ÉF)Resistance kW
20 (68)2.1 - 2.9
80 (176)0.27 - 0.38
Crankshaft Position Sensor (TDC)
Resistance [at 20ÉC (68ÉF)]W495 - 605
Glow Plug
Resistance [at 20ÉC (68ÉF)]WApproximately 0.8
Accelerator Position Sensor
Throttle valve conditionsVoltage (at normal operating temperature, engine is not running, ignition
SW ON)
Accelerator pedal fully released (A) 0.29 - 0.79V
Partially openBetween (A) - (B)
Accelerator pedal fully depressed (B) 3.48 - 4.64V
EGR Volume Control Valve
Resistance [at 20ÉC (68ÉF)]W13-17
SERVICE DATA AND SPECIFICATIONS (SDS)YD25DDTi
EC-3650

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