engine NISSAN TIIDA 2009 Service Repair Manual

EC-986< SERVICE INFOMATION >
[MR TYPE 1]
FUEL INJECTOR
FUEL INJECTOR
Component Description INFOID:0000000004537523
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.
CONSULT-III Reference Value in Data Monitor Mode INFOID:0000000004537524
Specification data are reference values. PBIA9664J
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL See EC-618 .
INJ PULSE-B1 • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec

EC-988< SERVICE INFOMATION >
[MR TYPE 1]
FUEL INJECTOR
Do not use ECM ground terminals when measuring in put/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045375261.
INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Yes or No Yes >> GO TO 2.
No >> GO TO 3. 2.
CHECK OVERALL FUNCTION
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “A CTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Start engine.
2. Listen to each fuel injector operating sound.
OK or NG OK >>
INSPECTION END
NG >> GO TO 3. TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
25
29
30
31 V
Y
O
L Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1 [Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm at
idle BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14V) PBIB0529E
PBIA4943J
Clicking noise should be heard.
PBIB3332E

FUEL PUMP
EC-991
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
FUEL PUMP
Description INFOID:0000000004537529
SYSTEM DESCRIPTION
*: 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 engi ne is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition s witch 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 rela y, which in turn controls the fuel pump.
COMPONENT DESCRIPTION A turbine type design fuel pump is used in the fuel tank.
• Fuel level sensor unit and fuel pump (1)
• Fuel pressure regulator (2)
• Fuel level sensor (3)
• Fuel tank temperature sensor (4)
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004537530
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 cranking Operates
Engine: Stopped Stops in 1.5 seconds
Except as shown above Stops BBIA0704E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY • For 1 second after turning ignition switch ON
• Engine running or cranking ON
• Except above conditions OFF

EC
NP
O
Diagnosis Procedure
INFOID:0000000004537532OK >>
INSPECTION END
NG >> GO TO 2. OK >> GO TO 5.
NG >> GO TO 3. OK >> GO TO 4.
NG >> GO TO 11.
TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
23 GR Fuel pump relay [Ignition switch: ON]
• For 1 second after turning ignition switch ON
[Engine is running] 0 - 1.0V
[Ignition switch: ON]
• More than 1 second after turning ignition
switch ON BATTERY VOLTAGE
(11 - 14V)

EC-1000< SERVICE INFOMATION >
[MR TYPE 1]
IGNITION SIGNAL
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045375371.
CHECK ENGINE START
Turn ignition switch OFF, and restart engine.
Is engine running?
Yes or No Yes (With CONSULT-III)>>GO TO 2.
Yes (Without CONSULT-III)>>GO TO 3.
No >> GO TO 4. 2.
CHECK OVERALL FUNCTION
With CONSULT-III
1. Perform “POWER BALANCE” in “A CTIVE TEST” mode with CONSULT-III.
2. Make sure that each circuit produces a momentary engine speed drop.
OK or NG OK >>
INSPECTION END
NG >> GO TO 10. 3.
CHECK OVERALL FUNCTION
Without CONSULT-III
1. Let engine idle.
2. Read the voltage signal between ECM terminals 17, 18, 21, 22
and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as shown below.
NOTE:
The pulse cycle changes depending on rpm at idle.
OK or NG TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
17
18
21
22 R
LG
G
SB Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3 [Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle 0 - 0.3V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 0.2 - 0.5V PBIA9265J
PBIA9266J
PBIA9567J
PBIA9265J

EC-1004< SERVICE INFOMATION >
[MR TYPE 1]
IGNITION SIGNAL
7. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres- sure.
NOTE:
Do not use CONSULT-III to releas e fuel pressure, or fuel pres-
sure applies again during the following procedure.
- : Vehicle front
8. Start engine.
9. After engine stalls, crank it two or three times to release all fuel
pressure.
10. Turn ignition switch OFF.
11. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
12. Remove ignition coil and spark plug of the cylinder to be checked.
13. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
14. Connect spark plug and harness connector to ignition coil.
15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm between the edge of the spark plug and grounded metal portion
as shown in the figure.
16. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spar k plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the el ectrical discharge voltage
becomes 20kV or more.
• It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
17. If NG, replace ignition coil with power transistor.
CONDENSER-2
1. Turn ignition switch OFF.
2. Disconnect condenser-2 harness connector.
3. Check resistance between condenser-2 terminals 1 and 2.
4. If NG, replace condenser-2.
Removal and Installation INFOID:0000000004537539
IGNITION COIL WITH POWER TRANSISTOR
Refer to EM-153 .
Spark should be generated. PBIB2958E
PBIB2325E
Resistance: Above 1 M
Ω [at 25 °C (77 °F)] PBIB0794E

REFRIGERANT PRESSURE SENSOR
EC-1007
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
Diagnosis Procedure
INFOID:00000000045375421.
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 voltage between ECM terminal 41 and ground with CON- SULT-III or tester.
OK or NG OK >>
INSPECTION END
NG >> GO TO 2. 2.
CHECK GROUND CONNECTIONS
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine and turn ignition switch OFF.
3. Loosen and retighten ground screw on the body. Refer to EC-632, " Ground Inspection " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace ground connections. 3.
CHECK REFRIGERANT PRESSURE SE NSOR POWER SUPPLY CIRCUIT
TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
41 GR Refrigerant pressure sensor [Engine is running]
• Warm-up condition
• Both A/C switch and blower fan switch: ON
(Compressor operates) 1.0 - 4.0V
48 BR Sensor ground
(Refrigerant pressure sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
74 W Sensor power supply
(Refrigerant pressure sensor) [Ignition switch: ON]
Approximately 5VVoltage: 1.0 - 4.0V
PBIA9574J
:
Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E

(A/T)
CVT-244 (CVT)
P0710 0710 ATF TEMP SEN/CIRC*4
AT-96 (A/T)
CVT-249 (CVT)
P0715 0715 INPUT SPD SEN/CIRC CVT-254P0720 0720 VEH SPD SEN/CIR AT
AT-101 (A/T)
CVT-258 (CVT)
P0725 0725 ENGINE SPEED SIG AT-106P0731 0731
A/T 1ST GR FNCTN*4
AT-110P0732 0732
A/T 2ND GR FNCTN*4
AT-113P0733 0733
A/T 3RD GR FNCTN*4
AT-116P0734 0734
A/T 4TH GR FNCTN*4
AT-119DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST* 2
ECM*3
P0740 0740 TCC SOLENOID/CIRC AT-124 (A/T)
CVT-266 (CVT)
P0744 0744 A/T TCC S/V FNCTN AT-129 (A/T)
CVT-271 (CVT)
P0745 0745 L/PRESS SOL/CIRC AT-134 (A/T)
CVT-273 (CVT)
P0746 0746 PRS CNT SOL/A FCTN CVT-278P0750 0750 SFT SOL A/CIRC
AT-139P0755 0755 SFT SOL B/CIRC
AT-144P0776 0776 PRS CNT SOL/B FCTN
CVT-280P0778 0778 PRS CNT SOL/B CIRC
CVT-282P0840 0840 TR PRS SENS/A CIRC
CVT-287

PRECAUTIONS
EC-1021
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004499899
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution for Procedur e without Cowl Top Cover INFOID:0000000004499900
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnosis (OBD) Syst em of Engine and A/T, CVT INFOID:0000000004499901
The ECM has an on board diagnostic system . It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition sw itch OFF and disconnect the battery ground cable before any repair or
inspection work. The open/short circuit of relate d switches, sensors, solenoid valves, etc. will cause
the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL 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-lock-
ing type harness connector. For descripti on and how to disconnect, refer to PG-64 .
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to li ght up due to the short circuit. PIIB3706J

EC-1022< SERVICE INFOMATION >
[MR TYPE 2]
PRECAUTIONS
• Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the fuel injection system, etc.
• Be sure to erase the unnecessary malfunction info rmation (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
Precaution INFOID:0000000004499902
• Always use a 12 volt battery as power source.
• Do not attempt to disconnect battery cables while engine is
running.
• Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
• Before removing parts, turn ig nition switch OFF and then dis-
connect negative battery cable.
• Do not disassemble ECM.
• If battery cable is disconnected, the memory will return to the
initial ECM values.
The ECM will now start to self-c ontrol at its initial values.
Engine operation can vary slight ly in this case. However, this
is not an indication of a malf unction. Do not replace parts
because of a slight variation.
• If the battery is disconnected, the following emission-related
diagnostic information will be lost within 24 hours.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
• When connecting ECM harness connector, fasten (B) it
securely with a lever (1) as far as it will go as shown in the fig-
ure.
- ECM (2)
- Loosen (A)
• When connecting or disconnect ing pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM pin
terminal, when connecting pin connectors.
• Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and co ndenser, thus resulting in dam-
age to ICs.
• Keep engine control system harness at least 10 cm (4 in) away
from adjacent harness, to preven t engine control system mal-
functions due to receiving exter nal noise, degraded operation
of ICs, etc. SEF289H
PBIA9222J
PBIB2947E
PBIB0090E