2014 NISSAN TEANA stop start

P1572 ASCD BRAKE SWITCHEC-911
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P1572 ASCD BRAKE SWITCH
DescriptionINFOID:0000000009462775
When the brake pedal is depressed, brake pedal position switch is turned OFF and stop lamp switch is turned
ON. ECM detects the state of the brake pedal by this input of two kinds (ON/OFF signal).
Refer to EC-574, "AUTOMATIC SPEED CONTROL DE VICE (ASCD) : System Description"
for the ASCD
function.
DTC LogicINFOID:0000000009462776
DTC DETECTION LOGIC
NOTE:
• If DTC P1572 is displayed with DT C P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-883, "DTC Logic"
.
• This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not
stored in ECM memory. And in that case, 1st trip DTC and 1st trip freeze frame data are displayed.
1st trip DTC is erased when igniti on switch OFF. And even when ma lfunction A is detected in two
consecutive trips, DTC is not stored in ECM memory.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 5.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
NOTE:
Procedure for malfunction B is not described here. It take s extremely long time to complete procedure for mal-
function B. By performing procedure for malfunction A, the incident that causes malfunction B can be
detected.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PR OCEDURE FOR MALFUNCTION A-I
1. Start engine (VDC switch OFF).
2. Select “DATA MONITOR” mode with CONSULT.
3. Press MAIN switch and make sure that CRUISE lamp lights up.
4. Drive the vehicle for at least 5 consecutive seconds under the following conditions. CAUTION:
Always drive vehicle at a safe speed.
NOTE:
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P1572 ASCD brake switch A)
When the vehicle speed is above 30 km/h
(19 MPH), ON signals from the stop lamp
switch and the brake pedal position switch
are sent to the ECM at the same time. • Harness or connectors
(The stop lamp switch circuit is shorted.)
• Harness or connectors (The brake pedal position switch circuit is
shorted.)
• Stop lamp switch
• Brake pedal position switch
• Incorrect stop lamp switch installation
• Incorrect brake pedal position switch installa- tion
•ECM
B)
Brake pedal position switch signal is not
sent to ECM for extremely long time while
the vehicle is driving.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ELECTRONIC CONTROLLED ENGINE MOUNTEC-959
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
ELECTRONIC CONTROLLED ENGINE MOUNT
Component Function CheckINFOID:0000000009462839
1.CHECK OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Shift selector position is D while depressing the brake pedal and parking brake pedal.
3. Disconnect electronic controlled engine mount control solenoid valve harness connector.
4. Check that body vibration increases compared to the condition of step 2 above (with vehicle stopped).
Is the inspection result normal?
YES >> INSPECTION END
NO >> EC-959, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462840
1.CHECK VACUUM SOURCE
1. Turn ignition switch OFF.
2. Reconnect electronic controlled engine mount control solenoid valve harness connector.
3. Disconnect vacuum hose connected to electronic controlled engine mount.
4. Start engine and let it idle.
5. Check vacuum hose for vacuum existence.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 2.
2.CHECK VACUUM HOSES AND VACUUM GALLERY
1. Turn ignition switch OFF.
2. Check vacuum hoses and vacuum gallery for cl ogging, cracks or improper connection. Refer to EC-577,
"ELECTRONIC CONTROLLED ENGINE MOUNT : System Description".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace vacuum hoses and vacuum gallery.
3.CHECK ELECTRONIC CONTROLLED ENGINE MOUNT CONTROL SOLENOID VALVE POWER SUPPLY
1. Disconnect electronic controlled engine mount control solenoid valve harness connector.
2. Turn ignition switch ON.
3. Check the voltage between front electronic controlled engine mount harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK ELECTRONIC CONTROLLED ENGINE MOUNT CONTROL SOLENOID VALVE POWER SUPPLY
CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) harness connector.
3. Check the continuity between electronic controll ed engine mount harness connector and fuse block (J/B)
harness connector. Vacuum should exist.
Electronic controlled engine mount
control solenoid valve Ground Voltage
Connector Terminal
F64 1 Ground Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-984
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
Without CONSULT
1. When revving engine up to 5,000 rpm quickly.
2. Rev engine quickly up to approximately 5,000 rpm.
3. Check that power valve actuator 2 rod moves.
Is the inspection result normal?
YES >> INSPECTION END
NO >> EC-984, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462864
1.INSPECTION START
Confirm the malfunctioning system (power valve 1 or power valve 2). Refer to EC-983, "Component Function
Check".
Which system is related to the incident?
Power valve 1>>GO TO 2.
Power valve 2>>GO TO 6.
2.CHECK VACUUM EXISTENCE-I
With CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 1.
2. Start engine and let it idle.
3. Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT.
4. Turn VIAS control solenoid valve 1 ON and OFF, and check vacuum existence under the following condi-
tions.
1. Power valve actuator 1 2. Power valve actuator 1 rod 3. Power valve actuator 2
4. Power valve actuator 2 rod : Vehicle front
1. Power valve actuator 1 2. Power valve actuator 1 rod 3. Power valve actuator 2
4. Power valve actuator 2 rod : Vehicle front
JMBIA1129ZZ
JMBIA1386ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

VARIABLE INDUCTION AIR SYSTEMEC-985
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
Without CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 1.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Start engine.
4. Rev engine quickly up to approximately 5,000 rpm.
5. Check vacuum existence under the following conditions.
Is the inspection result normal?
YES >> Repair or replace power valve actuator 1. Refer to EC-548, "ENGINE CONTROL SYSTEM :
Component Parts Location".
NO >> GO TO 3.
3.CHECK VACUUM TANK
1. Stop engine and disconnect vacuum hose connected to intake manifold collector.
2. Start engine and let it idle.
3. Check vacuum existence from intake manifold collector.
Does vacuum existence from t he intake manifold collector?
YES >> GO TO 4.
NO >> Replace intake manifold collector. Refer to EM-146, "Removal and Installation"
.
4.CHECK VACUUM HOSE
1. Stop engine.
2. Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to EC-586, "VARIABLE INDUCTION AIR
SYSTEM : System Description".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair hoses or tubes.
5.CHECK VIAS CONTROL SOLENOID VALVE 1
Check VIAS control solenoid valve 1. Refer to EC-921, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace VIAS control solenoid valve 1. Refer to EC-548, "ENGINE CONTROL SYSTEM : Com-
ponent Parts Location".
6.CHECK VACUUM EXISTENCE-II
With CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2. Start engine and let it idle.
3. Perform “VIAS S/V-2” in “A CTIVE TEST” mode with CONSULT.
4. Turn VIAS control solenoid valve 2 ON and OFF, and check vacuum existence under the following condi- tions.
VIAS S/V-1 Vacuum
ON Existed
OFF Not existed
Condition VacuumIdle Existed
Rev engine quickly up to approximately 5,000 rpm Not existed
SEF109L
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-986
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
Without CONSULT
1. Stop engine and disconnect vacuum hose connected to power valve actuator 2.
2. Disconnect VIAS control solenoid valve 1 harness connector.
3. Start engine.
4. Rev engine quickly up to approximately 5,000 rpm.
5. Check vacuum existence under the following conditions.
Is the inspection result normal?
YES >> Repair or replace power valve actuator 2. Refer to EC-548, "ENGINE CONTROL SYSTEM :
Component Parts Location".
NO >> GO TO 7.
7.CHECK VACUUM HOSE
1. Stop engine.
2. Check vacuum hose for crack, clogging, improper connection or
disconnection. Refer to EC-586, "VARIABLE INDUCTION AIR
SYSTEM : System Description".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair hoses or tubes.
8.CHECK VIAS CONTROL SOLENOID VALVE 2
Check VIAS control solenoid valve 2. Refer to EC-923, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace VIAS control solenoid valve 2. Refer to EC-548, "ENGINE CONTROL SYSTEM : Com-
ponent Parts Location".
VIAS S/V 2 Vacuum
ON Existed
OFF Not existed
Condition OperationIdle Existed
Rev engine quickly up to approximately 5,000 rpm Not existed
SEF109L
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EM-4
< PRECAUTION >[QR25DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951675
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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 three minutes before performing any service.
Precaution for Draining CoolantINFOID:0000000009460453
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000009460454
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before any removal or disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000009460455
• When instructed to use special service tools, use the s pecified tools. Always be careful to work safely, avoid
forceful operations.
• Use maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or equivalent , if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organi zed way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, follow the specifications.
Precaution for Inspection, Repair and ReplacementINFOID:0000000009460456
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Revision: November 20132014 Altima NAM

EM-6
< PRECAUTION >[QR25DE]
PRECAUTIONS
4. Cover the serrated end of the valve with a large shop towel (A).
Strike the valve face end with a hammer, separating it into two
pieces.
5. Fill a bucket, such as a 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can, with at least 10 (2-5/8 US gal, 2-1/4 lmp gal) of water.
Carefully place the already cut (serrated) valves into the water
one-at-a-time using a set of large tweezers and quickly move
away at least 2.7 m (9 ft).
6. The valves should be placed in a standing position as shown in the illustration to allow complete reaction. After the bubbling
action has subsided, additional valves can be placed into the
bucket allowing each subsequent chemical reaction to subside.
However, no more than 8 valves should be placed in the same
10 (2-5/8 US gal, 2-1/4 lmp gal) amount of water. The com-
plete chemical reaction may take as long as 4 to 5 hours.
Remove the valves using a set of large tweezers after the chem-
ical reaction has stopped. Afterwards, valves can be disposed
as ordinary scrap.
Precaution for Assembly and InstallationINFOID:0000000009460458
• Use torque wrench to tighten bolts or nuts.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
follow the specifications.
• Always replace the old with a new gas ket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Bleed the air trapped within the system after draining the coolant.
• Before starting engine, apply fuel pressure to fuel li nes with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage or rattles.
Parts Requiring Angular TighteningINFOID:0000000009460459
• Use an angle wrench for the final tightening of the following engine parts.
- Cylinder head bolts
- Lower cylinder block bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000009460460
REMOVAL OF LIQUID GASKET
JPBIA4966ZZ
A : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can]
JPBIA4967ZZ
Revision: November 20132014 Altima NAM

EM-32
< REMOVAL AND INSTALLATION >[QR25DE]
INTAKE MANIFOLD
2. If studs were removed, install them and tighten to specification.
3. Tighten in numerical order as shown. CAUTION:
After tightening the five bolts in the order shown, the 1, 6
position designates that the fi rst bolt tightened is to be
retightened to specification.
Electric Throttle Control Actuator
1. Install a new O-ring on the electric throttle control actuator. CAUTION:
Do not reuse electric throttl e control actuator O-ring.
2. Tighten the bolts of electric th rottle control actuator equally and
diagonally in several steps in numerical order as shown.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at connections as follows:
1. Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
2. Start the engine and rev it up and check for fuel leaks at connections.
WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
Studs : 9.4 N·m (0.96 kg-m, 83 in-lb)
Bolts 1, 2, 3, 4, 5, 6 : 25.0 N·m (2.6 kg-m, 18 ft-lb)
Nuts 4, 5 : 25.0 N·m (2.6 kg-m, 18 ft-lb)
Bolt 7 : 45.0 N·m (4.6 kg-m, 33 ft-lb)
ALBIA0825GB
AWBIA1359ZZ
Revision: November 20132014 Altima NAM