NISSAN TEANA 2014 Service Manual

SENSOR POWER SUPPLY2 CIRCUITEC-981
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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SENSOR POWER SUPPLY2 CIRCUIT
DescriptionINFOID:0000000009462861
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
• Accelerator pedal position (APP) sensor 1
• Camshaft position (CMP) sensor (PHASE)
• Electric throttle control actuator
• Battery current sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• Accelerator pedal position (APP) sensor 2
• Crankshaft position (CKP) sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
• Engine oil pressure sensor
Diagnosis ProcedureINFOID:0000000009462862
1.CHECK SENSOR POWER SUPPLY 1
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect following sensors harness connector.
3. Check harness for short to power and short to ground, between the following terminals.
+
−Vo l ta g e
(Approx.)
ECM
Connector Terminal
F79 54
Ground 5 V
96
E32 103
107
ECM Sensor + Name +
Connector Terminal Connector Terminal
F79 54 CKP sensor (POS) F30 1
96 Refrigerant pressure sensor E219 1
E32 103 APP sensor 2 E40 5
107
EVAP control system pressure sensor B41 3
EOP sensor F87 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-982
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
SENSOR POWER SUPPLY2 CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK COMPONENTS
Check the following.
• Crankshaft position sensor (POS) (Refer to EC-819, "Component Inspection"
.)
• Refrigerant pressure sensor (Refer to EC-979, "Diagnosis Procedure"
.)
• APP sensor 2 (Refer to EC-941, "Component Inspection"
.)
• EVAP control system pressure sensor (Refer to EC-849, "Component Inspection"
.)
• EOP sensor (Refer to EC-877, "Component Inspection"
.)
Is the inspection result normal?
YES >> Perform GI-43, "Intermittent Incident".
NO >> Replace malfunctioning component.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

VARIABLE INDUCTION AIR SYSTEMEC-983
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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VARIABLE INDUCTION AIR SYSTEM
Component Function CheckINFOID:0000000009462863
1.CHECK OVERALL FUNCTION-I
With CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Perform “VIAS S/V-1” in “A CTIVE TEST” mode with CONSULT.
3. Turn VIAS control solenoid valve 1 “ON” and “OFF” , and check that power valve actuator 1 rod moves.
Without CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Rev engine quickly up to approximately 5,000 rpm.
3. Check that power valve actuator 1 rod moves.
Is the inspection result normal?
YES >> GO TO 2.
NO >> EC-984, "Diagnosis Procedure"
.
2.CHECK OVERALL FUNCTION-II
With CONSULT
1. Perform “VIAS S/V-2” in “A CTIVE TEST” mode with CONSULT.
2. Turn VIAS control solenoid valve 2 “ON” and “OFF” , and check that power valve actuator 2 rod moves.
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

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]
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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

ENGINE CONTROL SYSTEM SYMPTOMSEC-987
< SYMPTOM DIAGNOSIS > [VQ35DE]
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SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM SYMPTOMS
Symptom TableINFOID:0000000009462865
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2 EC-965
Fuel pressure regulator system 334444444 4EC-687
Fuel injector circuit 11232 22 2EC-962
Evaporative emission system 334444444 4EC-580
Air Positive crankcase ventilation sys-
tem 334444444 41
EC-563
Incorrect idle speed adjustment 1 1 1 1 1 EC-675
Electric throttle control actuator 112332222 2 2EC-933,
EC-938
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-675
Ignition circuit 11222 22 2EC-967
Power supply and ground circuit 22333 33 23 EC-709
Mass air flow sensor circuit
1
12 2
222 2 EC-727,
EC-732
Engine coolant temperature sensor circuit
333
EC-742,
EC-746
Air fuel ratio (A/F) sensor 1 circuit EC-753
,
EC-757
,
EC-760
,
EC-781
,
EC-927
Throttle position sensor circuit
22EC-744
,
EC-807
,
EC-895
,
EC-896
,
EC-945
Accelerator pedal position sensor circuit 3 2 1 EC-885
,
EC-940
,
EC-942
,
EC-947
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-988
< SYMPTOM DIAGNOSIS >[VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Knock sensor circuit 2 3 EC-815
Engine oil temperature sensor 4 2 3EC-801,
EC-805
Crankshaft position sensor (POS) circuit 2 2 EC-817
Camshaft position sensor (PHASE) circuit 3 2EC-820
Vehicle speed signal circuit 2 3 3 3EC-867
ECM 22333333333EC-881,
EC-883
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-725
PNP signal circuit 3 3 3 3 3 EC-887
VIAS control solenoid valve 1 circuit 1EC-920
VIAS control solenoid valve 2 circuit 1EC-922
Refrigerant pressure sensor circuit 2 3 3 4EC-979
Electrical load signal circuit 3EC-957
Air conditioner circuit 223333333 3 2HA-15
ABS actuator and electric unit (control unit) 4BRC-55
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEM SYMPTOMSEC-989
< SYMPTOM DIAGNOSIS > [VQ35DE]
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SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-5
Fuel piping 5 5 5 5 5 5
Va p o r l o c k —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gasoline,
Low octane) —
Air Air duct
55555 5 EM-144
Air cleaner
EM-137
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator) 5555 EM-144
Electric throttle control actuator
EM-146
Air leakage from intake manifold/
Collector/Gasket EM-146,
EM-149
Cranking Battery
111111
11
PG-4
Generator circuit
CHG-17,
CHG-20
Starter circuit 3 STR-12,
STR-16
Signal plate 6 EM-224
PNP signal 4TM-299
Engine Cylinder head
55555 55 5 EM-207
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-224
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-990
< SYMPTOM DIAGNOSIS >[VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nism Timing chain
55555 55 5 EM-182
Camshaft
EM-194
Intake valve timing controlEM-172,
EM-173
Intake valve 3EM-210
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-152
,
EM-153
,
EX-11
Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-156
,
LU-27
, LU-
29, LU-32
Oil level (Low)/Filthy oil LU-25
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-40,
CO-51
Thermostat 5 CO-49
Water pumpCO-44
Water galleryCO-31
Cooling fan
5CO-42
Coolant level (Low)/Contaminat-
ed coolant CO-35
NVIS (NISSAN Vehicle Immobilizer System —
NATS) 11
SEC-11
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM