2014 NISSAN TEANA Service Manual

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Page 1409 of 4801

NISSAN TEANA 2014 Service Manual
P0643 SENSOR POWER SUPPLYEC-409
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
YES >> GO TO 5.
NO >> Repair or replace malfunctioning component.
5.CHECK APP SENSOR
Refer to EC-

Page 1410 of 4801

NISSAN TEANA 2014 Service Manual
EC-410
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0850 PNP SWITCH
P0850 PNP SWITCH
DescriptionINFOID:0000000009462338
Transmission range switch is turn ON when the selector lever is P or N.
ECM detects the

Page 1411 of 4801

NISSAN TEANA 2014 Service Manual
P0850 PNP SWITCHEC-411
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-411, "Diagnosis Procedure".
NO >> IN

Page 1412 of 4801

NISSAN TEANA 2014 Service Manual
EC-412
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0850 PNP SWITCH
2.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the

Page 1413 of 4801

NISSAN TEANA 2014 Service Manual
P1078 EVT CONTROL POSITION SENSOREC-413
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P1078 EVT CONTROL POSITION SENSOR
DTC LogicINFOID:0000000009462342
DTC DETECTION LOGIC
DTC

P1078 EVT CONTROL POSITION SENSOREC-413
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
P1078 EVT CONTROL POSITION SENSOR
DTC LogicINFOID:0000000009462342
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-413, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462343
1.CHECK EXHAUST VALVE TIMING (EVT) CO NTROL POSITION SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect exhaust valve timing (EVT) c ontrol position sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVT control position sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Perform EC-525, "Diagnosis Procedure"
.
Is inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK EVT CONTROL POSITI ON SENSOR GROUND CIRCUIT
DTC No.CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P1078 EXH TIM SEN/CIRC-B1
(EXH TIM SEN/CIRC-B1) An excessively high or low
voltage from the sensor is
sent to ECM. • Harness or connectors
(Exhaust valve timing control position sensor circuit is open
or shorted)
• Accumulation of debris to the signal pick-up portion of the camshaft
• Exhaust valve timing control position sensor
• Sensor power supply 2 circuit
+
−Vo l ta g e
(Approx.)
EVT sensor
Connector Terminal F58 1 Ground 5 V
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1414 of 4801

NISSAN TEANA 2014 Service Manual
EC-414
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1078 EVT CONTROL POSITION SENSOR
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVT control posit ion se

Page 1415 of 4801

NISSAN TEANA 2014 Service Manual
P1078 EVT CONTROL POSITION SENSOREC-415
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C
D E
F
G H
I
J
K L
M A
EC
NP
O
Component InspectionINFOID:0000000009462344
1.EXHAUST VALVE TIMING (EVT)
CONTROL POSITION

Page 1416 of 4801

NISSAN TEANA 2014 Service Manual
EC-416
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1148 CLOSED LOOP CONTROL
P1148 CLOSED LOOP CONTROL
DTC LogicINFOID:0000000009462345
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor

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