2014 NISSAN TEANA ignition

EC-876
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0520 EOP SENSOR
2.CHECK EOP SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors.
3. Check the continuity between EOP sens or harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK EOP SENSOR
Check EOP sensor. Refer to EC-877, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
4.CHECK EOP SENSOR POWER SUPPLY-II
Check the voltage between EOP sensor harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 5.
5.CHECK EOP SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors.
3. Check the continuity between EOP sens or harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Check sensor power supply 2 circuit. Refer to EC-981, "Diagnosis Procedure"
.
Is inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
7.CHECK EOP SENSOR GROUND CIRCUIT
+ −
Continuity
EOP sensor ECM
Connector Terminal Connector Terminal F87 2 F78 4 Existed
+ −Voltag e
(Approx.)
EOP sensor
Connector Terminal F87 3 Ground 5 V
+ −
Continuity
EOP sensor ECM
Connector Terminal Connector Terminal F87 3 E32 107 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0520 EOP SENSOREC-877
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EOP sens or harness connector and ECM harness connector.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK ECM GROUND CIRCUIT
Check the continuity between ECM harness connector and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
Component InspectionINFOID:0000000009462728
1.CHECK EOP SENSOR
1. Turn ignition switch OFF.
2. Disconnect EOP sensor harness connector.
3. Check resistance between EOP sensor connector terminals.
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace EOP sensor. Refer to EC-548, "ENGINE CONTROL SYSTEM : Component Parts Loca-
tion".
+−
Continuity
EOP sensor ECM
Connector Terminal Connector Terminal F87 1 E32 112 Existed
+ −Continuity
ECM
Connector Terminal
F78 12
Ground Existed
16
E32 123
124
127
128
EOP sensor ConditionResistance
(kΩ)
+
−
Te r m i n a l
1 2
None 4 – 10
32 – 8
2 1 4 – 10
31 – 3
3 12 – 8
21 – 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-878
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0524 ENGINE OIL PRESSURE
P0524 ENGINE OIL PRESSURE
DTC LogicINFOID:0000000009462729
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
If “ EC-879, "Diagnosis Procedure"
” is unfinished, be sure to perform Step 3 and 4.
1.PRECONDITIONING-1
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TEST CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 2.
2.PRECONDITIONING-2
Is
“Diagnosis Procedure” of DTC P0524 finished?
YES >> GO TO 3.
NO >> GO TO 4.
3.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Maintain the following conditions for about 10 consecutive seconds.
NOTE:
With engine speed set around 4,000 rpm, the phenomenon can be reproduced more easily.
3. Check DTC.
Is DTC detected?
YES >> Proceed to EC-879, "Diagnosis Procedure".
NO >> INSPECTION END
4.CHECK ENGINE OIL LEVEL
Check engine oil level. Refer to LU-25, "Inspection"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Proceed to EC-879, "Diagnosis Procedure"
.
5.CHECK ENGINE OIL PRESSURE
With CONSULT
DTC No. Trouble diagnosis
(Trouble diagnosis content) DTC detecting condition Possible cause
P0524 ENGINE OIL PRESSURE
(Engine oil pressure too low) An EOP sensor signal voltage applied to
ECM remains lower than the specified value
continuously for 10 seconds or more when
the engine speed is 1,000 rpm or more. • Decrease in engine oil pressure
• Decrease in engine oil level
• Engine oil condition
•EOP sensor
• Engine body
Selector lever P or N position
Engine coolant temperature 70 °C (158 °F) or more
Engine speed 1,000 rpm or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0524 ENGINE OIL PRESSUREEC-879
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Start the engine and check that “EOP SENSOR” changes, according to engine speeds.
Without CONSULT
Check engine oil pressure. Refer to LU-25, "Inspection"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Proceed to EC-879, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462730
1.CHECK ENGINE OIL LEVEL
1. Turn ignition switch OFF.
2. Check engine oil level. Refer to LU-25, "Inspection"
.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK ENGINE OIL PRESSURE
With CONSULT
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Start the engine and check that “EOP SENSOR” changes, according to engine speeds.
Without CONSULT
Check engine oil level. Refer to LU-25, "Inspection"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check oil pump. Refer to LU-29, "Removal and Installation"
.
3.CHECK EOP SENSOR
Check EOP sensor. Refer to EC-880, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
4.CHECK ENGINE OIL LEAKAGE
Check engine oil leakage. Refer to LU-23, "Lubrication Circuit"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
Monitor item Condition Va l u e
(Approx.)
EOP SENSOR • Engine oil temperature: 80
°C (176 °F)
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Engine speed:
Idle 1,450 mV or more
Engine speed:
2,000 rpm 2,850 mV or more
Monitor item Condition Va l u e
(Approx.)
EOP SENSOR • Engine oil temperature: 80
°C (176 °F)
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Engine speed:
Idle 1,450 mV or more
Engine speed:
2,000 rpm 2,850 mV or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-880
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0524 ENGINE OIL PRESSURE
5.CHECK CAUSE OF ENGINE OIL CONSUMPTION
Check the following item.
>> Repair or replace error-detected parts.
Component InspectionINFOID:0000000009462731
1.CHECK EOP SENSOR
1. Turn ignition switch OFF.
2. Disconnect EOP sensor harness connector.
3. Check resistance between EOP sensor connector terminals.
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace EOP sensor. Refer to EC-548, "ENGINE CONTROL SYSTEM : Component Parts Loca-
tion".
Step Inspection item Equipment Standard Reference
1PCV valve EC-996, "Work Procedure"
2 Exhaust front tube Visual • No blocking
• No abnormal sounds —
3 Oil pump LU-29, "Removal and Installation"
4•Piston
• Piston pin
• Piston ring • Piston to piston pin oil clearance
• Piston ring side clearance
• Piston ring end gap EM-224
5 Cylinder block
• Cylinder block top surface distortion
• Piston to cylinder bore clearance EM-234
EOP sensor
ConditionResistance
(kΩ)
+
−
Te r m i n a l
1 2
None 4 – 10
32 – 8
2 14 – 10
31 – 3
3 12 – 8
21 – 3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0603 ECM POWER SUPPLYEC-881
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0603 ECM POWER SUPPLY
DTC LogicINFOID:0000000009462732
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 10 second.
2. Turn ignition switch OFF and wait at least 5 minutes.
3. Turn ignition switch ON, wait at least 10 seconds.
4. Repeat steps 2 and 3 for five times.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-881, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462733
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform the trouble diagnosis for power supply circuit.
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0603 ECM power supply cir-
cuit ECM back up RAM system does not function
properly. • Harness or connectors
[ECM power supply (b ack up) circuit is
open or shorted.]
•ECM
ECM
Vol tag e
+–
Connector Terminal Connector Terminal F78 26 E32 128 Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0605 ECMEC-883
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P0605 ECM
DTC LogicINFOID:0000000009462734
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
1. Turn ignition switch ON.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-883, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds, and then turn it ON.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-883, "Diagnosis Procedure".
NO >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds, and then turn it ON.
3. Repeat step 2 for 32 times.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-883, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462735
1.INSPECTION START
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC CONFIRMATION PROCEDURE. See EC-883, "DTC Logic"
.
Is the 1st trip DTC P0605 displayed again?
YES >> Replace ECM. Refer to EC-997, "Removal and Installation".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0605 Engine control module A) ECM calculation function is malfunctioning.
•ECM
B) ECM EEP-ROM system is malfunctioning.
C) ECM self shut-off function is malfunctioning.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-884
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0607 ECM
P0607 ECM
DTC LogicINFOID:0000000009462736
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected?
YES >> Proceed to EC-884, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462737
1.INSPECTION START
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC CONFIRMATION PROCEDURE.
See EC-884, "DTC Logic"
.
4. Check DTC.
Is the DTC P0607 displayed again?
Yes >> Replace ECM. Refer to EC-997, "Removal and Installation".
No >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0607 CAN communication bus When detecting error during the initial diagno-
sis of CAN controller of ECM. •ECM
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM