engine control NISSAN TIIDA 2007 Service Repair Manual

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-599
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EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
DescriptionINFOID:0000000001697487
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
Component Function CheckINFOID:0000000001697488
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE FUNCTION
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect the EVAP purge hose from EVAP canister purge volume control solenoid valve (EVAP canis-
ter side).
3. Start engine and let it idle.
4. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode wit CONSULT-III.
5. Touch “Qu” and “Qd” on CONSULT-III screen to adjust “PURG VOL CONT/V” and check vacuum exist-
ence under the following conditions.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect the EVAP purge hose from EVAP canister purge volume control solenoid valve (EVAP canis-
ter side).
3. Start engine and let it idle for at least 100 seconds.
4. Check vacuum existence under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-599, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697489
1.CHECK EVAP CANISTER
Refer to EC-683, "
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace.
2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
PBIA9215J
PURG VOL CONT/V Vacuum
100% Existed
0 % Not existed
Condition Vacuum
At idle Not existed
About 2,000 rpm Existed

EC-600
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
3. Turn ignition switch ON.
4. Check the voltage between EVAP canister purge volume control solenoid valve harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E7, F121
 Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
 Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and
ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES-1 >> With CONSULT-III: GO TO 5.
YES-2 >> Without CONSULT-III: GO TO 6.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1. Reconnect all harness connectors disconnected.
2. Start engine.
3. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var-
ies according to the valve opening.
Does engine speed vary according to the valve opening?
YES >> GO TO 7.
NO >> GO TO 6.
6.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to EC-601, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace EVAP canister purge volume control solenoid valve.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
EVAP canister purge volume control solenoid valve
Ground Voltage
Connector Terminal
F32 1 Ground Battery voltage
EVAP canister purge volume control solenoid valve ECM
Continuity
Connector Terminal Connector Terminal
F32 2 F7 9 Existed

EC-602
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
FUEL INJECTOR
FUEL INJECTOR
DescriptionINFOID:0000000001693431
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
Component Function CheckINFOID:0000000001693432
1.INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
YES >> GO TO 2.
NO >> Go to EC-602, "
Diagnosis Procedure".
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-602, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693433
1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel injector harness connector and ground.
PBIA9664J
Clicking noise should be heard.
PBIB3332E

FUEL PUMP
EC-605
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FUEL PUMP
DescriptionINFOID:0000000001693435
*: 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 camshaft 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 Function CheckINFOID:0000000001693436
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >>EC-605, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693437
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump controlFuel pump relay
↓
Fuel pump
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stopped Stops in 1.5 seconds.
Except as shown aboveSto ps .
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
ALBIA0276ZZ
(+) (–)
Vo l ta g e
Connector Terminal Connector Terminal
F10 23 E16 108 Battery voltage

HO2S1 HEATER
EC-613
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HO2S1 HEATER
DescriptionINFOID:0000000001697495
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the Heated oxygen sensor 1 heater corresponding to the engine
operating condition to keep the temperature of Heated oxygen sensor 1 element at the specified range.
OPERATION
Component Function CheckINFOID:0000000001697496
1.CHECK HEATED OXYGEN SENSOR 2 HEATER FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Set tester prove between ECM harness connection and ground.
4. Start engine and let it idle.
5. Check the voltage under the following conditions.Verify that the oscilloscope screen shows the signal
waves as shown below.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Go to EC-613, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697497
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E21. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 1
heater controlHeated oxygen sensor 1
heater
Mass air flow sensor Amount of intake air
Engine speed rpm Heated oxygen sensor 1 heater
Above 3,600OFF
Below 3,600 rpm after the following conditions are met.
 Engine: After warming upON
ECM
Ground Condition Voltage
Connector Terminal
F73
(HO2S1 HEATER signal)GroundAt idleApproximately 7.0
Engine speed is above 3,600
rpmBATTERY VOLTAGE
(11 - 14V)
JMBIA0325GB

EC-616
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2
HO2S2
DescriptionINFOID:0000000001697499
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
Component Function CheckINFOID:0000000001697500
1.PERFORM COMPONENT FUNCTION CHECK-I
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check the voltage between ECM harness connector and ground under the following condition.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK-II
Check the voltage between ECM harness connector and ground under the following condition.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
3.PERFORM COMPONENT FUNCTION CHECK-III
Check the voltage between ECM harness connector and ground under the following condition.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-617, "
Diagnosis Procedure".
SEF327R
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)GroundRevving up to 4,000 rpm under no load at
least 10 timesThe voltage does not remain in the range of
0.2 - 0.4V.
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)Ground Keeping engine speed at idle for 10 minutesThe voltage does not remain in the range of
0.2 - 0.4V.
ECM
Ground Condition Voltage
Connector Terminal
F850
(HO2S2 signal)GroundCoasting from 80 km/h (50 MPH) in 3rd gear po-
sition The voltage does not remain in the range of
0.2 - 0.4V.

EC-620
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
HO2S2 HEATER
HO2S2 HEATER
DescriptionINFOID:0000000001697503
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
Component Function CheckINFOID:0000000001697504
1.CHECK HEATED OXYGEN SENSOR 2 HRATER FUNCTION
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle.
4. Check the voltage between ECM harness connector and ground under the following condition.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-620, "
Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000001697505
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E21. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
Sensor Input signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Engine speed rpm Heated oxygen sensor 2 heater
Above 3,900OFF
Below 3,900 rpm after the following conditions are met.
 Engine: After warming up
 Keeping the engine speed between 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute under no loadON
ECM
Ground Condition Voltage signal
Connector Terminal
F75
(HO2S2 heater signal)GroundAt idleApprox. 10V
Engine speed: Above 3,900 rpmBATTERY VOLTAGE
(11 - 14V)
JMBIA0325GB

EC-632
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
DescriptionINFOID:0000000001693449
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function CheckINFOID:0000000001693450
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-632, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001693451
1.CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
PBIB2657E
(+) (–)
Voltage
Connector Terminal Connector Terminal
F1141
(Refrigerant pressure sensor signal)F11 48 1.0 - 4.0V
Refrigerant pressure sensor
Ground Voltage
Connector Terminal
E17 3 Ground Approx. 5V

EC-634
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
VSS
VSS
DescriptionINFOID:0000000001697511
The vehicle speed signal is sent to the combination meter from the “ABS actuator and electric unit (control
unit)” by CAN communication line. The combination meter then sends a signal to the ECM by CAN communi-
cation line.
Diagnosis ProcedureINFOID:0000000001697512
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM COMPONENT FUNCTION CHECK
1. Turn ignition switch OFF.
2. Lift up the vehicle.
3. Start engine and let it idle.
4. Select “VHCL SPEED SE” in “DATA MONITOR” mode with CONSULT-III.
5. Select “VHCL SPEED SE” indication whe n rotating wheels with suitable gear position.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-25, "
CONSULT-III Function (ABS)" (with ABS) or BRC-105, "CONSULT-III Function (ABS)" (with
ESP/TCS/ABS).
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace.
4.CHECK COMBINATION METER FUNCTION
Refer to MWI-25, "
DTC Logic".
>> INSPECTION END “VHCL SPEED SE” indication should
exceed 10 km/h (6 MPH).

EC-638
< ECU DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
ECM
*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from
ECM terminals voltage signal.
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
 ECM is located in the engine room left side near battery.
 Specification data are reference values and are measured between each terminal and ground.
 Pulse signal is measured by CONSULT-III.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
CRUISE LAMP  Ignition switch: ONMAIN switch: Pressed at the 1st time →
at the 2nd timeON → OFF
SET LAMP MAIN switch: ON
 When vehicle speed: Between 40
km/h (25 MPH) and 153 km/h (95
MPH)ASCD: Operating ON
ASCD: Not operating OFF Monitor Item Condition Values/Status
PBIA9221J
Te r m i n a l N o .
Wire
colorDescription
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
1GroundL/WThrottle control motor
(Open)Output[Ignition switch: ON]
 Engine stopped
 Shift lever: D (A/T) or 1st (M/
T)
 Accelerator pedal: Fully de-
pressed3.2V
2GroundR/YThrottle control motor relay
power supplyInput [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
3GroundLG/RHeated oxygen sensor 1
heaterOutput[Engine is running]
 Warm up condition
 Engine speed: Below 3,600
rpmApproximately 3.2V
[Engine is running]
 Warm-up condition
 Idle speed
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE (11 - 14V)
PBIA8150J
PBIA8148J