sensor NISSAN TEANA 2014 Service Manual

FUEL PUMPEC-509
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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2. Disconnect ECM harness connector.
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between ECM harness connector and IPDM E/R harness connector.
*1: Except for California
*2: For California
5. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
3.CHECK FUEL PUMP POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Turn ignition switch ON.
4. Check the voltage between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IP DM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
5.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between “fuel le vel sensor unit and fuel pump” and ground.
+-
Continuity
ECM IPDM E/R
Connector Terminal Connector Terminal
F14
*1
F91*218 F84 69 Existed
+
-Voltage
Fuel level sensor unit
and fuel pump
Connector Terminal
B42 6 Ground Battery voltage should exist 1 second
after ignition switch is turn ON.
+-
Continuity
IPDM E/R Fuel level sensor unit and
fuel pump
Connector Terminal Connector Terminal E1815B42 6Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-510
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
FUEL PUMP
2. Also heck harness for short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK FUEL PUMP
Refer to EC-510, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace “fuel level sensor unit and fuel pump”. Refer to FL-6, "Removal and Installation"
.
7.CHECK INTERMITTENT INCIDENT
Perform GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000009462444
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor uni t and fuel pump” harness connector.
3. Check resistance between “fuel level sensor unit and fuel pump” terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace “fuel level sensor unit and fuel pump”. Refer to FL-6, "Removal and Installation"
.
+
-Continuity
Fuel level sensor unit and fuel pump
Connector Terminal B42 4 Ground Existed
Fuel level sensor unit and fuel pump Resistance
+-
Te r m i n a l
6 4 0.2 - 5.0 Ω [at 25 °C (77 °F)]
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-518
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Component Function CheckINFOID:0000000009462453
1.CHECK ORVR FUNCTION
Check whether the following symptoms are present.
• Fuel odor from EVAP canister is strong.
• Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
Are any symptoms present?
YES >> Proceed to EC-518, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462454
1.INSPECTION START
Check whether the following symptoms are present.
A: Fuel odor from EVAP canister is strong.
B: Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
A or B
A>>GO TO 2.
B>>GO TO 7.
2.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached. Refer to FL-14, "Removal and Installation"
.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister
Does water drain from the EVAP canister?
YES >> GO TO 4.
NO >> GO TO 6.
4.REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to FL-14, "Removal and Installation"
.
>> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. Refer to FL-10, "Removal and Installation"
.
6.CHECK REFUELING EVAP VAPOR CUT VALVE
Check refueling EVAP vapor cut valve. Refer to EC-520, "Component Inspection"
.
JMBIA1134GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-519
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "Removal and Installation"
.
7.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached. Refer to FL-14, "Removal and Installation"
.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 9.
8.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Check if water will drain from EVAP canister.
Does water drain from the EVAP canister?
YES >> GO TO 6.
NO >> GO TO 11.
9.REPLACE EVAP CANISTER
Replace EVAP canister with a new one. Refer to FL-14, "Removal and Installation"
.
>> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.
>> Repair or replace EVAP hose. Refer to FL-14, "Exploded View"
.
11 .CHECK VENT HOSES AND VENT TUBES
Check hoses and tubes between EVAP c anister and refueling control valve for clogging, kinks, looseness and
improper connection.
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair or replace hoses and tubes.
12.CHECK FILLER NECK TUBE
Check recirculation line for clogging, dents and cracks.
Is the inspection result normal?
YES >> GO TO 13.
NO >> Replace filler neck tube.
13.CHECK REFUELING EVAP VAPOR CUT VALVE
Check refueling EVAP vapor cut valve. Refer to EC-520, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace refueling EVAP vapor cut valve with fuel tank. Refer to FL-10, "Removal and Installation"
.
14.CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
JMBIA1134GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

REFRIGERANT PRESSURE SENSOREC-523
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REFRIGERANT PRESSURE SENSOR
Component Function CheckINFOID:0000000009462456
1.CHECK REFRIGERANT PRE
SSURE SENSOR 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 under the following conditions.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-523, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462457
1.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY
1. Disconnect refrigerant pressu re sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pr essure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK REFRIGERANT PRESSURE SE NSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pre ssure sensor harness connector and ECM harness connec-
tor.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
ECM
Voltage (V)
Connector +–
Te r m i n a l
E10
*1
E31*2103 124 1.0 - 4.0
+ -Vo l ta g e
(Approx.)
Refrigerant pressure sensor
Connector Terminal E219 1 Ground 5 V
+- Continuity
Refrigerant pressure sensor ECM
Connector Terminal Connector Terminal
E219 1 E10
*1
E31*2104 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-524
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
REFRIGERANT PRESSURE SENSOR
3.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pre ssure sensor harness connector and ECM harness connec-
tor.
*1: Except for California
*2: For California
4. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK REFRIGERANT PRESSURE SE NSOR INPUT SIGNAL CIRCUIT
1. Check the continuity between refrigerant pre ssure sensor harness connector and ECM harness connec-
tor.
*1: Except for California
*2: For California
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace refrigerant pressure sensor. Refer to HAC-107, "Removal and Installation" (with auto-
matic air conditioner) or HAC-163, "Removal and Installation"
(with manual air conditioner).
NO >> Repair or replace error-detected parts.
+-
Continuity
Refrigerant pressure sensor ECM
Connector Terminal Connector Terminal
E219 3 E10
*1
E31*2124 Existed
+-
Continuity
Refrigerant pressure sensor ECM
Connector Terminal Connector Terminal
E219 2 E10
*1
E31*2103 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SENSOR POWER SUPPLY 2 CIRCUITEC-525
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SENSOR POWER SUPPLY 2 CIRCUIT
DescriptionINFOID:0000000009462458
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
• APP sensor 1
• Battery current sensor
• CKP sensor (POS)
• Intake manifold runner control valve position sensor
• Refrigerant pressure sensor
• TP sensor
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• APP sensor 2
• CMP sensor (PHASE)
• EVT control position sensor
• EOP sensor
• MAF sensor
Diagnosis ProcedureINFOID:0000000009462459
1.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-1
1. Turn ignition switch OFF.
2. Disconnect accelerator pedal position (APP) sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-2
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between APP sens or harness connector and ECM harness connector.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit.
+
-Vo l ta g e
(Approx.)
APP sensor
Connector Terminal E40 5 Ground 5V
++ Continuity
APP sensor ECM
Connector Terminal Connector Terminal
E40 5 E10
*1
E31*2118 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-526
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
SENSOR POWER SUPPLY 2 CIRCUIT
3.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
1. Disconnect following sensors harness connector.
2. Check harness for short to power and short to ground, between the following terminals.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK COMPONENTS
Check the following.
• APP sensor 2 (Refer to EC-486, "Component Inspection"
.)
• Camshaft position sensor (PHASE) (Refer to EC-331, "Component Inspection (Camshaft position sensor)"
.)
• EVT control position sensor (Refer to EC-415, "Component Inspection"
.)
• EOP sensor (Refer to EC-390, "Component Inspection"
.)
• MAF sensor (Refer to EC-230, "Component Inspection"
.)
Is the inspection result normal?
YES >> Refer to GI-43, "Intermittent Incident".
NO >> Replace malfunctioning component.
ECM Sensor
Connector Terminal Name Connector Terminal
F14
*1
F91*2
32 CMP sensor (PHASE) F55 1
36 MAF sensor F31 6
40 EOP sensor F9 3
44 EVT control position sensor F58 1
E10
*1
E31*2118 APP sensor 2 E40 5
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ENGINE CONTROL SYSTEMEC-527
< SYMPTOM DIAGNOSIS > [QR25DE]
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SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM
Symptom TableINFOID:0000000009462460
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-508
Fuel pressure regulator system 334444444 4EC-182
Fuel injector circuit 11232 22 2EC-505
Fuel level sensor circuitEC-376,
EC-378
Fuel tank temperature sensor circuit EC-304,
EC-306
Evaporative emission system 334444444 4 EC-536
Air Positive crankcase ventilation sys-
tem 334444444 41
EC-539
Incorrect idle speed adjustment 1 1 1 1 1 EC-179
Electric throttle control actuator 112332222 2 2EC-475,
EC-480
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-535
Ignition circuit 11222 22 2EC-511
Main power supply and ground circuit 22333 33 23 EC-203
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-528
< SYMPTOM DIAGNOSIS >[QR25DE]
ENGINE CONTROL SYSTEM
Mass air flow sensor circuit
1
12 2
222 2 EC-228,
EC-232
Intake air temperature sensor circuit EC-240,
EC-241
Engine coolant temperature sensor circuit
333
EC-245,
EC-251
Air fuel ratio (A/F) sensor 1 circuit EC-258
,
EC-262
,
EC-265
,
EC-289
,
EC-468
Throttle position sensor circuit
22EC-248
,
EC-315
,
EC-426
,
EC-427
,
EC-488
Accelerator pedal position sensor circuit 3 2 1 EC-482
,
EC-485
,
EC-491
Heated oxygen sensor 2 circuit 6 6 6 6 5 EC-268
,
EC-276
,
EC-284
Knock sensor circuit 2 3 EC-324
Engine oil temperature sensor circuit 4 2 3EC-311,
EC-312
Engine oil pressure sensor circuit 4 4 3 3 3 3 EC-388,
EC-392
Crankshaft position sensor (POS) circuit 2 2 EC-326
Camshaft position sensor (PHASE) circuit 3 2EC-329
Vehicle speed signal circuit 2 3 3 3EC-380
ECM 22333333333EC-400
,
EC-401
,
EC-402
,
EC-404
Intake valve timing control solenoid valve cir-
cuit 32 13223 3 EC-209,
EC-221
Intake valve timing intermediate lock control
solenoid valve circuit EC-394
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