2014 NISSAN TEANA ignition

ADDITIONAL SERVICE WHEN REPLACING ECMEC-175
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• During programming, maintain the following conditions:
- Ignition switch: ON
- Electric load: OFF
- Brake pedal: Not depressed
- Battery voltage: 12 – 13.5 V (Be sure to check the va lue of battery voltage by selecting “BATTERY VOLT” in
“Data monitor” of CONSULT.)
>> GO TO 6.
5.REPLACE ECM
Replace ECM. Refer to EC-540, "Removal and Installation"
.
>> GO TO 6.
6.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS
Refer to SEC-66, "ECM : Work Procedure"
.
>> GO TO 7.
7.CHECK ECM DATA STATUS
Check if the data is successfully copied from the EC M at Step 1 (before replacement) and saved in CONSULT.
Is the data saved successfully?
YES >> GO TO 8.
NO >> GO TO 9.
8.WRITE ECM DATA
With CONSULT
1. Select “WRITING DATA FOR REPLC CPU” in “W ORK SUPPORT” mode of “ENGINE” using CONSULT.
2. Follow the instruction of CONSULT display.
NOTE:
The data saved by “SAVING DATA FOR REPLC CPU” is written to ECM.
>> GO TO 10.
9.PERFORM VIN REGISTRATION
Refer to EC-176, "Work Procedure"
.
>> GO TO 10.
10.PERFORM ACCELERATOR PEDAL RE LEASED POSITION LEARNING
Refer to EC-177, "Work Procedure"
.
>> GO TO 11.
11 .PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to EC-178, "Work Procedure"
.
>> GO TO 12.
12.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-179, "Work Procedure"
.
>> END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-176
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VIN REGISTRATION
VIN REGISTRATION
DescriptionINFOID:0000000009462132
VIN Registration is an operation to registering VIN in
ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM ma y be required for Inspection & Maintenance (I/M).
Work ProcedureINFOID:0000000009462133
1.CHECK VIN
Check the VIN of the vehicle and note it. Refer to GI-23, "Identification Number"
.
>> GO TO 2.
2.PERFORM VIN REGISTRATION
With CONSULT
1. Turn ignition switch ON and engine stopped.
2. Select “VIN REGISTRATION” in “WORK SU PPORT” mode of “ENGINE” using CONSULT.
3. Follow the instruction of CONSULT display.
>> END
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ACCELERATOR PEDAL RELEASED POSITION LEARNINGEC-177
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ACCELERATOR PEDAL RELEAS
ED POSITION LEARNING
DescriptionINFOID:0000000009462134
Accelerator Pedal Released Position Learning is a function of ECM to learn the fully released position of the
accelerator pedal by monitoring the accelerator pedal pos ition sensor output signal. It must be performed each
time harness connector of accelerator pedal position sensor or ECM is disconnected.
Work ProcedureINFOID:0000000009462135
1.START
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
>> END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-178
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THROTTLE VALVE CLOSED POSITION LEARNING
THROTTLE VALVE CLOSED POSITION LEARNING
DescriptionINFOID:0000000009462136
Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle
valve by monitoring the throttle position sensor output signal. It must be performed each time the harness con-
nector of the electric throttle control actuator or ECM is disconnected or elec tric throttle control actuator inside
is cleaned.
Work ProcedureINFOID:0000000009462137
1.START
With CONSULT
1. Turn ignition switch ON.
2. Select “CLSD THL POS LEARN” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Follow the instructions on the CONSULT display.
4. Turn ignition switch OFF and wait at least 10 seconds.
Check that throttle valve moves during the above 10 seconds by confirming the operating sound.
Without CONSULT
1. Start the engine.
NOTE:
Engine coolant temperature is 25 °C (77 °F) or less before engine starts.
2. Warm up the engine. NOTE:
Raise engine coolant temperature until it reaches 65 °C (149 °F) or more.
3. Turn ignition switch OFF and wait at least 10 seconds. Check that throttle valve moves during the above 10 seconds by confirming the operating sound.
>> END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

IDLE AIR VOLUME LEARNINGEC-179
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IDLE AIR VOLUME LEARNING
DescriptionINFOID:0000000009462138
Idle Air Volume Learning is a function of ECM to lear
n the idle air volume that keeps each engine idle speed
within the specific range. It must be per formed under any of the following conditions:
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
Work ProcedureINFOID:0000000009462139
1.PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
• Selector lever : P or N
• Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime running light systems, set lighting switch to the 1st position to
light only small lamps.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- With CONSULT Drive vehicle until “ATF TENP SEN” in “DATA MONITO R” mode of “CVT” system indicates less than 0.9 V.
- Without CONSULT Drive vehicle for 10 minutes.
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 3.
2.IDLE AIR VOLUME LEARNING
With CONSULT
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-177, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-178, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode of “ENGINE”.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.IDLE AIR VOLUME LEARNING
Without CONSULT
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-177, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-178, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quick ly five times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-180
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IDLE AIR VOLUME LEARNING
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
9. Start engine and let it idle.
10. Wait 20 seconds.
>> GO TO 4
4.CHECK IDLE SPEED AND IGNITION TIMING
Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifi-
cations. For specification, refer to EC-541, "Idle Speed"
and EC-541, "Ignition Timing".
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following
• Check that throttle valve is fully closed.
• Check PCV valve operation.
• Check that downstream of throttle valve is free from air leakage.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace malfunctioning part.
6.DETECT MALFUNCTIONING PART
Engine component parts and their installation condition are questionable. Check and eliminate the cause of
the incident.
It is useful to perform “TROUBLE DIAGNOSIS - SPECIFICATION VALUE”. Refer to EC-195, "Description"
.
If any of the following conditions occur after the engi ne has started, eliminate the cause of the incident and
perform Idle Air Volume Learning all over again:
• Engine stalls.
• Erroneous idle.
>> INSPECTION END
SEC897C
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

MIXTURE RATIO SELF-LEARNING VALUE CLEAREC-181
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MIXTURE RATIO SELF-LEARNING VALUE CLEAR
DescriptionINFOID:0000000009462140
This describes how to erase the mixture ratio self-lear
ning value. For the actual procedure, follow the instruc-
tions in “Diagnosis Procedure”.
Work ProcedureINFOID:0000000009462141
1.START
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Clear mixture ratio self-learning value by touching “CLEAR”.
With GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector.
4. Restart engine and let it idle for at least 5 seconds.
5. Stop engine and reconnect mass air flow sensor harness connector.
6. Select Service $03 with GST. Make sure DTC P0102 is detected.
7. Select Service $04 with GST to erase the DTC P0102.
>> END
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-182
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FUEL PRESSURE
FUEL PRESSURE
Work ProcedureINFOID:0000000009462142
FUEL PRESSURE RELEASE
1.FUEL PRESSURE RELEASE
With CONSULT
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEA SE” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
Without CONSULT
1. Remove fuel pump fuse located in IPDM E/R. For the fuse number, refer to EC-117, "Wiring Diagram"
. For
the fuse arrangement, refer to PG-72, "Fuse, Connector and Terminal Arrangement"
.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
>> END
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pr essure from fuel line to eliminate danger.
NOTE:
• Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because th is models do not have fuel return system.
• Use Fuel Pressure Gauge Kit [SST: (J-44321)] to check fuel pressure.
1.FUEL PRESSURE CHECK
1. Release fuel pressure to zero.
2. Connect fuel tube adapter [SST:KV10120000] (B) to quick con-
nector.
3. Turn ignition switch ON and check for fuel leakage.
4. Start engine and check for fuel leakage.
5. Read the indication of fuel pressure gauge.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK FUEL HOSES AND FUEL TUBES
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”. Refer to FL-6, "Removal and Installation".
NO >> Repair or replace error-detected parts.
A : Fuel pressure gauge
C : Fuel feed hose
: Vehicle front
At idling : Approximately 350 kPa (3.57 kg/cm2, 51 psi)
ALBIA0811ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM