2007 NISSAN TIIDA fuel pressure

P1089 FUEL PUMP
EC-1187
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4.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Refer to EC-1045, "
BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump
(Volumetric Control Valve) Check]".
Is the inspection result normal?
OK >> GO TO 5.
NG >> Replace or replace. Then GO TO 9.
5.CHECK RAIL HIGH PRESSURE REGULATION
Refer to EC-1048, "
BASIC INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regula-
tion Check)".
Is the inspection result normal?
OK >> GO TO 6.
NG >> Replace or replace. Then GO TO 9.
6.CHECK MAJOR LEAK IN FUEL INJECTORS/FUEL INJECTORS OPEN
Refer to EC-1052, "
BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injectors/
Fuel Injectors Open)".
Is the inspection result normal?
OK >> GO TO 7.
NG >> Replace or replace. Then GO TO 9.
7.CHECK INCORRECT FUEL INJECTION QUANTITY
Refer to EC-1053, "
BASIC INSPECTION : Special Repair Requirement (TEST 7: Incorrect Fuel Injection
Quantity)".
Is the inspection result normal?
OK >> GO TO 8.
NG >> Replace or replace. Then GO TO 9.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> INSPECTIO END.
NO >> Repair or replace. Then GO TO 9.
9.CLEAR PRESSURE REGULATION
Perform “PRESS REG ADAPTIVE” in WORK SUPPORT mode with CONSULT-III.
>>INSPECTION END.

EC-1216
< ECU DIAGNOSIS >[K9K]
ECM
ECU DIAGNOSIS
ECM
Reference ValueINFOID:0000000001538652
VALUE ON THE DIAGNOSIS TOOL
Remarks:
● Specification data are reference values.
● Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
MONITOR ITEM CONDITION SPECIFICATION
ENGINE SPEED Run engine and compare CONSULT-III value with the tachometer
indication.Almost the same speed as the tachom-
eter indication
ACCEL/PDL POS Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0%
WATER TEMP  Engine: After warming up More than 70°C (158°F)
FUEL TEMP  Engine: After warming up More than 40°C (104°F)
BATTERY VOLTAGE  Ignition switch: ON (Engine stopped) 11 - 14V
ATMOS PRESS  Ignition switch: ONAltitude
Approx. 0m: Approx. 100.62 kPa
(1.0062 bar, 1.026 kg/cm
2, 14.59 psi)
Approx. 1,000 m: Approx. 88.95 kPa
(0.8895 bar, 0.907 kg/cm
2, 12.90 psi)
Approx. 1,500 m: Approx. 83.16 kPa
(0.8316 bar, 0.848 kg/cm
2, 12.06 psi)
Approx. 2,000 m: Approx. 78.36 kPa
(0.7836 bar, 0.799 kg/cm
2, 11.36 psi)
INLET PRESS Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately 980 mbar
2,000 rpm Approximately 1,010 mbar
AIR FLOW Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately 200 mg/cp
2,000 rpm Approximately 270 mg/cp
VEHICLE SPEED Turn drive wheels and compare CONSULT-III value with the
speedometer indicationAlmost the same speed as the speed-
ometer indication
RAIL PRESSURE Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately 230 bar
2,000 rpm Approximately 450 bar
RAIL PRES SET Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately 230 bar
2,000 rpm Approximately 450 bar
FUEL FLOW Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately 4.9 mg/cp
2,000 rpm Approximately 3.5 mg/cp
EGR PO RECOPY Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately -50 %
EGR/V OPEN REF Engine: After warming up
 Air conditioner switch: OFF
 Shift lever: Neutral position
No loadIdle Approximately -50 %

EC-1218
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ECM
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
1
(SB)
128
(B)Fuel injector No. 4
Input[Engine is running]
Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle.0- 9V
2
(SB)Fuel injector No. 3
3
(SB)Fuel injector No. 2
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpm0- 9V
4
(SB)Fuel injector No. 1
5
(V)
128
(B)Fuel injector power supply
No. 4
Output[Engine is running]
Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle.5 - 10V
6
(Y)Fuel injector power supply
No. 3
7
(O)Fuel injector power supply
No. 2
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpm5 - 10V
8
(L)Fuel injector power supply
No. 1
15
(R)—Sensor ground
(Fuel rail pressure sensor)—— —
19
(W)15
(R)Fuel rail pressure sensor Input[Engine is running]
Warm-up condition
 Idle speedApproximately 1.0V
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpmApproximately 1.5V
20
(G)15
(R)Sensor power supply
(Fuel rail pressure sensor)—[Ignition switch: ON]Approximately 5.0V
28
(G)30
(O)Sensor power supply
(Mass air flow sensor)—[Ignition switch: ON]Approximately 5.0V
29
(O)—Sensor ground
(Fuel pump temperature
sensor)—— —
30
(O)—Sensor ground
(Mass air flow sensor/ Intake
air temperature sensor) —— —
JMBIA0635GB
JMBIA0636GB
JMBIA0637GB
JMBIA0638GB

ECM
EC-1219
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P O33
(B)—Sensor ground
(Engine coolant temperature
sensor)—— —
35
(LG)30
(O)Mass air flow sensor Input[Ignition switch: ON]Approximately 0.36V
[Engine is running]
Warm-up condition
 Idle speedApproximately 1.7V
[Engine is running]
Warm-up condition
 Engine speed: 2,500 rpmApproximately 2.6V
36
(O)43
(BR)Sensor power supply
(Turbocharger boost sensor)—[Ignition switch: ON]Approximately 5.0V
37
(LG)29
(O)Fuel pump temperature sen-
sorInput[Engine is running]
Warm-up conditionApproximately 2.8V
Output voltage varies with fuel
pump temperature.
38
(P)33
(B)Engine coolant temperature
sensorInput[Engine is running]
Warm-up conditionApproximately 1.8V
Output voltage varies with engine
coolant temperature.
39
(V)30
(O)Intake air temperature sen-
sorInput[Engine is running]
Warm-up conditionApproximately 2.0V
Output voltage varies with intake
air temperature.
43
(BR)—Sensor ground
(Turbocharger boost sensor)—— —
44
(G)43
(BR)Turbocharger boost sensor Input[Engine is running]
Warm-up condition
 Idle speedApproximately 1.6V
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpmApproximately 1.6V
49
(P)128
(B)High pressure supply pump
(Pressure control valve)Output[Ignition switch: OFF]
 Engine: Stopped
Duty signal
[Ignition switch: ON]
 Engine: Stopped
[Engine is running]
 Idle speed
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpm
50
(P)128
(B)High pressure supply pump
(Volumetric control valve)Output[Ignition switch: OFF]
 Engine: Stopped
Duty signal [Ignition switch: ON]
 Engine: Stopped
[Engine is running]
 Idle speed
[Engine is running]
Warm-up condition
 Engine speed: 2,000 rpm Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output

EC-1224
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ECM
Test Condition: Engine Stopped and Ignition Switch ON
Order Function Parameter Display and notes Trouble diagnosis
1 Battery voltage BATTERY VOLTAGE12 V < BATTERY VOLTAGE <
14.4 VIn the event of a malfunction, per-
form the trouble diagnosis for
CHARGING SYSTEM.
2 Engine speed ENGINE SPEEDIndicates the engine's rotational
speed in rpm.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0335 CKP SENSOR.
3Engine coolant tem-
peratureWATER TEMPClose to ambient temperature
(cold engine).
Indicates the engine coolant tem-
perature in ° C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ETC SENSOR.
4Accelerator pedal po-
sitionACCEL/PDL POS0%= ACCEL/PDL POS < 100%
Indicates the percentage of the
pedal position between no load
and full load positionIn the event of a malfunction, per-
form the trouble diagnosis for APP
SENSOR (DTC P0225, and P2120)
and SENSOR POWER SUPPLY
(DTC P0641 and P0651).
5 Inlet air temperature INLET AIR TEMIndicates the intake air tempera-
ture in °C. This information is pro-
vided by the IAT sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0110 IAT SENSOR.
6Fuel pump tempera-
tureFUEL TEMPClose to ambient temperature
(cold engine).
Indicates the fuel pump tempera-
ture in ° C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0180 FTT SENSOR.
7 Intake air pressureATOMOS PRESS700 mbar < ATOMOS PRESS <
11 0 0 m b a r
Indicates the ambient barometric
pressure in mbar. The sensor is
incorporated in the ECM.If not consistent, check ATOMOS
PRESS = INLET PRESS = local
ambient barometric pressure, with
the engine stopped and ignition
switch ON.
INLET PRESSIndicates the pressure in the tur-
bocharger in mbar.
8 Fuel rail pressure RAIL PRESSUREApproximately 0 bar
Indicates the fuel rail pressure in
bar of the diesel fuel in the fuel
rail.
This pressure is supplied by the
fuel rail pressure sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0190 and P1089 FRP SENSOR.
9Engine MOTORSTOPPED
Indicates the current status of the
engine.
 STOPPED
STARTER
ACTIVATED
 RUNNINGNONE.

ECM
EC-1225
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P O Test Condition: Engine at Idle
10 Engine immobilizer ENGINE IMMOBIINACTIVE
Indicates the status of the immo-
bilizer system.
 INACTIVE: The ECM has rec-
ognized the immobilizer code
transmitted by the Intelligent
Key unit or BCM.
 ACTIVE: The ECM does not
recognize the immobilizer code
transmitted by the Intelligent
Key unit or BCM.If ACTIVE, perform the trouble diag-
nosis for NATS.
11 Vehicle speed VEHICLE SPEED0 km/h (mph)
Indicates the vehicle speed in km/
h (mph). This parameter is trans-
mitted by the “ABS actuator and
electric unit (control unit)” or com-
bination meter via CAN communi-
cation line.Perform the trouble diagnosis for
CAN communication line. Perform
the trouble diagnosis for “ABS actu-
ator and electric unit (control unit)”
or combination meter. Order Function Parameter Display and notes Trouble diagnosis
Order Function Parameter Display and notes Trouble diagnosis
1 Battery voltage BATTERY VOLTAGE13V < BATTERY VOLTAGE <
16VIn the event of a malfunction, per-
form the trouble diagnosis for
CHARGING SYSTEM.
2 Engine speed ENGINE SPEEDAbout 800 rpm
Indicates the engine's rotational
speed in rpm.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0335 CKP SENSOR.
3Engine coolant tem-
peratureWATER TEMPIndicates the engine coolant
temperature in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ETC SENSOR.
4Accelerator pedal
positionACCEL/PDL POS0%= ACCEL/PDL POS < 100%
Indicates the percentage of the
pedal position between no load
and full load positionIn the event of a malfunction, per-
form the trouble diagnosis for APP
SENSOR (DTC P0225, and P2120)
and SENSOR POWER SUPPLY
(DTC P0641 and P0651).
5Inlet air tempera-
tureINLET AIR TEMIndicates the intake air tempera-
ture in °C. This information is
provided by the IAT sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0110 IAT SENSOR.
6Fuel pump temper-
atureFUEL TEMPIndicates the intake air tempera-
ture in °C. This information is
provided by the fuel pump tem-
perature sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0180 FTT SENSOR.
7 Intake air pressureATOMOS PRESS700 mbar < ATOMOS PRESS <
11 0 0 m b a r
Indicates the ambient barometric
pressure in mbar. The sensor is
incorporated in the ECM.If not consistent, check ATOMOS
PRESS = INLET PRESS = local am-
bient barometric pressure, with the
engine stopped and ignition switch
ON.
INLET PRESSIndicates the pressure in the tur-
bocharger in mbar.
INLET PRESS = local ambient
barometric pressure.
8 Fuel rail pressure RAIL PRESSUREIndicates the fuel rail pressure in
bar of the diesel fuel in the fuel
rail.
This pressure measured by the
fuel rail pressure sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0190 and P1089 FRP SENSOR.

ECM
EC-1227
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P O Test Condition: Engine at idle
*: Just at start time. After 1 minute, EGR volume control valve will close and flow start increase.
FUEL CIRCUIT SUB FUNCTION
Test Condition: Engine Stopped and Ignition Switch ON
Order Function Parameter Display and notes Trouble diagnosis
1 Intake air pressureATOMOS PRESS700 mbar < ATOMOS PRESS
< 1100 mbar
Indicates the ambient baromet-
ric pressure in mbar. The sen-
sor is incorporated in the ECM.If not consistent, check ATOMOS
PRESS = INLET PRESS = local
ambient barometric pressure, with
the engine stopped and ignition
switch ON.
INLET PRESSIndicates the pressure in the
turbocharger in mbar.
INLET PRESS = local ambient
barometric pressure.
2 Intake airATMOS PRES SEN V1.6V < ATMOS PRES SEN V <
4.9VIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P2226 BARO SENSOR.
AIR TEMP SEN V0.1V < AIR TEMP SEN V <
4.8VIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0110 IAT SENSOR.
3air flowAIR FLOW200* < AIR FLOW < 350 mg/st
Mass air flow measured the
ECM.
In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0100 MAF SENSOR. AIR FLOW DEMANDThe flow must follow the re-
quest and must be near to it.
AIR FLOW SUPLY VIndicates the voltage of the
mass air flow sensor.
4 Inlet air temperature INLET AIR TEMIndicates the intake air temper-
ature in °C. This information is
provided by the IAT sensor.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0110 IAT SENSOR.
5 Engine speed ENGINE SPEEDAbout 800 rpm
Indicates the engine's rotation-
al speed in rpm.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0335 CKP SENSOR.
Order Function Parameter Display and notes Trouble diagnosis
1Fuel pump tempera-
tureFUEL TEMPClose to ambient temperature
(cold engine).
Indicates the fuel pump tempera-
ture in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0180 FTT SENSOR.
FUEL TEMP SEN V 0.1V < FUEL TEMP SEN V <
4.9V
2Engine coolant tem-
peratureWATER TEMPClose to ambient temperature
(cold engine).
Indicates the engine coolant tem-
perature in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ETC SENSOR.
COOLAN TMP SEN V0.13V < COOLAN TMP SEN V <
4.90V
3 Engine speed ENGINE SPEEDIndicates the engine's rotational
speed in rpm.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0335 CKP SENSOR.
4 Fuel rail pressureRAIL PRESSUREIndicates the theoretical pressure
value for optimum engine opera-
tion.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0190 and P1089 FRP SENSOR. RAIL PRES SET RAIL PRES SET = 0 bar
RAIL PRES S V 0.4V < RAIL PRES S V < 4.7V

EC-1228
< ECU DIAGNOSIS >[K9K]
ECM
Test Condition: Engine at Idle
5 Fuel flowFUEL FLOW REG INACTIVE In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0001 FUEL PUMP. FUEL FLOW S/V CU Close to 0A
F/FLOW CORR CYL1
Cylinder no. 1 - 4 fuel flow correc-
tion = 0NONE F/FLOW CORR CYL2
F/FLOW CORR CYL3
F/FLOW CORR CYL4
6 Fuel pressure FUEL PRESS REG INACTIVEIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0090 FUEL PUMP.
7Intake air tempera-
tureAIR TEMP SEN V 0.1V < AIR TEMP SEN V < 4.8VIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0110 IAT SENSOR.
8 Fuel injectorsINJCTR CONDNSR V49V < INJCTR CONDNSR V <
96V
In the event of a malfunction, per-
form the trouble diagnosis for
P0201, P0202, P0203 and P0204
FUEL INJECTOR. COMM INJCTR CYL1
INACTIVE COMM INJCTR CYL2
COMM INJCTR CYL3
COMM INJCTR CYL4 Order Function Parameter Display and notes Trouble diagnosis
Order Function Parameter Display and notes Trouble diagnosis
1Fuel pump tempera-
tureFUEL TEMPIndicates the fuel pump tempera-
ture in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0180 FTT SENSOR. FUEL TEMP SEN V 0.1V < FUEL TEMP SEN V <
4.9V
2Engine coolant tem-
peratureWATER TEMPIndicates the engine coolant tem-
perature in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ETC SENSOR.
COOLAN TMP SEN V0.1V < COOLAN TMP SEN V <
4.9V
3 Engine speed ENGINE SPEEDAbout 800 rpm
Indicates the engine's rotational
speed in rpm.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0335 CKP SENSOR.
4 Fuel rail pressureRAIL PRESSUREIndicates the theoretical pressure
value for optimum engine opera-
tion.
200 bar < RAIL PRESSURE <
250 barIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0190 and P1089 FRP SENSOR.
RAIL PRES SETThe pressure must follow the set-
point and must be near to it.
RAIL PRES S V 0.4V < RAIL PRES S V < 4.7V
5 Fuel flowFUEL FLOW REG ACTIVE NONE.
FUEL FLOW S/V CU Maximum 2A NONE.
F/FLOW CORR CYL1
F/FLOW CORR CYL1-4 = 0.3 -
1.9In the event of a malfunction, per-
form the trouble diagnosis for
TEST6: MAJJOR LEAK IIN FUEL
INJECTORS/FUEL INJECTORS
OPEN. F/FLOW CORR CYL2
F/FLOW CORR CYL3
F/FLOW CORR CYL4
6 Fuel pressure FUEL PRESS REG ACTIVEIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0090 FUEL PUMP.