2003 NISSAN ALMERA N16 battery

FUEL PUMP CIRCUIT
EC-699
[QG (WITHOUT EURO-OBD)]
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FUEL PUMP CIRCUITPFP:17042
DescriptionEBS00KM1
SYSTEM DESCRIPTION
*: The ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor ModeEBS00KM2
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed
*
Fuel pump control Fuel pump relay
Battery
Battery voltage
*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stoppedStops in 1.5 seconds.
Except as shown aboveStops.
MBIB0046E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY
●For 1 seconds after turning ignition switch ON
●Engine running or crankingON
●Except above conditions OFF

FUEL PUMP CIRCUIT
EC-701
[QG (WITHOUT EURO-OBD)]
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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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureEBS00KM4
1.CHECK OVERALL FUNCTION
1. Turn ignition switch “ON”.
2. Pinch fuel feed hose with two fingers.
Fuel pressure pulsation should be felt on the fuel hose for 1
second after ignition switch is turned “ON”.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect fuel pump relay.
3. Turn ignition switch “ON”.
4. Check voltage between fuel pump relay terminals 1, 5 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
113 B/P Fuel pump relay[Ignition switch “ON”]
●For 1 seconds after turning ignition switch “ON”.
[Engine is running]0 - 1.0V
[Ignition switch “ON”]
●More than 1 seconds after turning ignition switch
“ON”.BATTERY VOLTAGE
(11 - 14V)
MBIB0114E
MBIB0257E
Voltage: Battery voltage
PBIB0303E

EC-712
[QG (WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureEBS00KME
1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch “ON”.
2. Connect CONSULT-II and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following
conditions.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG >> GO TO 4.
2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
With CONSULT-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
84 R/YElectrical load signal
(Headlamp signal)[Ignition switch “ON”]
●Lighting switch is “2nd” position.BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
●Lighting switch is “OFF”.Approximately 0V
Condition Indication
Rear window defogger switch “ON” ON
Rear window defogger switch “OFF” OFF
PBIB0103E
Condition Indication
Lighting switch “ON” at 2nd position ON
Lighting switch “OFF” OFF
PBIB0103E

ELECTRICAL LOAD SIGNAL
EC-713
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3.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Without CONSULT-II
Check voltage between ECM terminal 84 and ground under the fol-
lowing conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
4.CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to EL-173.
>>INSPECTION END
5.CHECK HEADLAMP FUNCTION
1. Turn lighting switch “ON” at 2nd position.
2. Check that headlamps are illuminated.
OK or NG
OK >> GO TO 6.
NG >> Refer to EL-42 or EL-46.
6.CHECK HEADLAMP INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
WITHOUT DAYTIME LIGHT SYSTEM
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Disconnect lighting switch harness connector.
4. Check harness continuity between ECM terminal 84 and lighting switch terminal 10.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
WITH DAYTIME LIGHT SYSTEM
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Disconnect daytime light relay.
4. Check harness continuity between ECM terminal 84 and daytime light relay terminal 3.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
Condition Voltage
Lighting switch “ON” at 2nd position Battery voltage
Lighting switch “OFF” Approximately 0V
MBIB0158E
Continuity should exist.
Continuity should exist.

EC-722
[QG (WITHOUT EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Fuel PressureEBS00KML
Idle Speed and Ignition TimingEBS00KMM
*1: Under the following conditions:
●Air conditioner switch: OFF
●Electric load: OFF (Lights, heater fan & rear window defogger)
●Steering wheel: Kept in straight-ahead position
Calculated Load ValueEBS00KMN
Mass Air Flow SensorEBS00KMO
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorEBS00KMP
Engine Coolant Temperature SensorEBS00KMQ
Heated Oxygen Sensor 1 HeaterEBS00KMR
Heated Oxygen sensor 2 HeaterEBS00KMS
Crankshaft Position Sensor (POS)EBS00KMT
Refer to EC-559, "Component Inspection" .
Camshaft Position Sensor (PHASE)EBS00KMU
Refer to EC-566, "Component Inspection" .
Fuel pressure at idle
Approximately 350 kPa (3.5bar, 3.57kg/cm2 , 51psi)
Target idle speed
No-load*1 (in “P” or N” position)A/T: 800±50 rpm
M/T: 700±50 rpm
Air conditioner: ON In “P” or N” position 900 rpm or more
Ignition timingIn “P” or N” position A/T: 10°±5° BTDC
M/T: 8°±5° BTDC
Calculated load value % (Using CONSULT-II)
At idle10 - 35
At 2,500 rpm10 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle1.0 - 1.7*V
Mass air flow (Using CONSULT-II)1.0 - 4.0 g·m/sec at idle*
5.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.9 - 2.1
80 (176)0.31 - 0.37
Temperature °C (°F) Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Resistance [at 20°C (68°F)] 8 - 10Ω
Resistance [at 25°C (77°F)] 2.3 - 4.3Ω

On Board Diagnosis Logic.......................................175
DTC Confirmation Procedure ..................................175
Diagnostic Procedure ..............................................176
DTC P1620 ECM RLY.................................................177
ECM Terminals and Reference Value .....................177
On Board Diagnosis Logic.......................................177
DTC Confirmation Procedure ..................................177
Wiring Diagram ........................................................178
Diagnostic Procedure ..............................................179
DTC P1621 ECM 15<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011>1
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........181
On Board Diagnosis Logic.......................................181
DTC Confirmation Procedure ..................................181
Diagnostic Procedure ..............................................182
DTC P1660 BATTERY VOLTAGE..............................183
On Board Diagnosis Logic.......................................183
DTC Confirmation Procedure ..................................183
Diagnostic Procedure ..............................................183
DTC P1690 P5.PUMP C/MODULE.............................185
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........185
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............185
ECM Terminals and Reference Value .....................186
On Board Diagnosis Logic.......................................186
DTC Confirmation Procedure ..................................186
Diagnostic Procedure ..............................................187
GLOW CONTROL SYSTEM.......................................188
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........188
ECM Terminals and Reference Value .....................189
Wiring Diagram ........................................................190
Diagnostic Procedure ..............................................191EGR VOLUME CONTROL SYSTEM..........................197
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........197
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............198
ECM Terminals and Reference Value .....................198
Wiring Diagram ........................................................199
Diagnostic Procedure ..............................................200
START SIGNAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011>5
Wiring Diagram ........................................................205
Diagnostic Procedure ..............................................206
PARK/NEUTRAL POSITION (PNP) SWITCH
(WHERE FITTED)<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011>8
Description <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[...........208
CONSULT-II Reference Value in Data Monitor
Mode <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011001100110011[.............208
ECM Terminals and Reference Value .....................208
Wiring Diagram ........................................................209
Diagnostic Procedure ..............................................210
AIR CONDITIONER CONTROL..................................212
Wiring Diagram ........................................................212
MI & DATA LINK CONNECTORS..............................213
Wiring Diagram ........................................................213
SERVICE DATA AND SPECIFICATIONS (SDS).......214
General Specifications .............................................214
Injection Nozzle .......................................................214
Engine Coolant Temperature Sensor ......................214
Crankshaft Position Sensor (TDC) ..........................214
Glow Plug <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[.........214
Accelerator Position Sensor ....................................214
EGR Volume Control Valve .....................................214GI
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CONTENTS(Cont’d)
EC-3

Alphabetical & P No. Index for DTCNJEC0600ALPHABETICAL INDEX FOR DTCNJEC0600S01X: Applicable —: Not applicable
Items
(CONSULT-II screen terms)DTC
Trip MI lighting up Reference page
CONSULT-II ECM
ACCEL POS SENSOR P0120 0403 1 X EC-89
BATTERY VOLTAGE P1660 0502 1 — EC-183
BRAKE SW P0571 0807 1 X EC-109
COOLANT TEMP SEN P0115 0103 1 X EC-84
CRANK POS SEN (TDC) P0335 0407 1 X EC-99
ECM RLY P1620 0902 1 X EC-177
ECM 2 P1607 0301 1 X EC-175
ECM 10 P1107 0802 1 X EC-116
ECM 12 P1603 0901 1 X EC-175
ECM 15 P1621 0903 1 — EC-181
FUEL CUT SYSTEM2 P1202 1002 1 X EC-124
MASS AIR FLOW SEN P0100 0102 1 X EC-78
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0505———
OVER HEAT P1217 0208 1 X EC-130
P1·CAM POS SEN P1341 0701 1 X EC-163
P2·TDC PULSE SIG P1337 0702 1 X EC-157
P3·PUMP COMM LINE P1600 0703 1 X EC-169
P4·SPILL/V CIRC P1251 0704 1 X EC-151
P5·PUMP C/MODULE P1690 0705 1 X EC-185
P7·F/INJ TIMG FB P1241 0707 1 X EC-145
P9·FUEL TEMP SEN P1180 0402 1 X EC-118
VEHICLE SPEED SEN P0500 0104 1 X EC-105
TROUBLE DIAGNOSIS — INDEXYD
Alphabetical & P No. Index for DTC
EC-4

P NO. INDEX FOR DTC=NJEC0600S02X: Applicable —: Not applicable
DTC
Trip MI lighting upItems
(CONSULT-II screen
terms)Reference page
CONSULT-II ECM
P0000 0505——NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0100 0102 1 X MASS AIR FLOW SEN EC-78
P0115 0103 1 X COOLANT TEMP SEN EC-84
P0120 0403 1 X ACCEL POS SENSOR EC-89
P0335 0407 1 XCRANK POS SEN
(TDC)EC-99
P0500 0104 1 X VEHICLE SPEED SEN EC-105
P0571 0807 1 X BRAKE SW EC-109
P1107 0802 1 X ECM 10 EC-116
P1180 0402 1 X P9·FUEL TEMP SEN EC-118
P1202 1002 1 X FUEL CUT SYSTEM2 EC-124
P1217 0208 1 X OVER HEAT EC-130
P1241 0707 1 X P7·F/INJ TIMG FB EC-145
P1251 0704 1 X P4·SPILL/V CIRC EC-151
P1337 0702 1 X P2·TDC PULSE SIG EC-157
P1341 0701 1 X P1·CAM POS SEN EC-163
P1600 0703 1 X P3·PUMP COMM LINE EC-169
P1603 0901 1 X ECM 12 EC-175
P1607 0301 1 X ECM 2 EC-175
P1620 0902 1 X ECM RLY EC-177
P1621 0903 1 — ECM 15 EC-181
P1660 0502 1 — BATTERY VOLTAGE EC-183
P1690 0705 1 X P5·PUMP C/MODULE EC-185GI
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TROUBLE DIAGNOSIS — INDEXYD
Alphabetical & P No. Index for DTC (Cont’d)
EC-5