2014 NISSAN TEANA Service Manual

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Page 1401 of 4801

NISSAN TEANA 2014 Service Manual
P0604 ECMEC-401
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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EC
NP
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P0604 ECM
DTC LogicINFOID:0000000009462329
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Tur

Page 1402 of 4801

NISSAN TEANA 2014 Service Manual
EC-402
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0605 ECM
P0605 ECM
DTC LogicINFOID:0000000009462331
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn ignition switch OFF and wait at

Page 1403 of 4801

NISSAN TEANA 2014 Service Manual
P0606 ECMEC-403
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0606 ECM
DTC LogicINFOID:0000000009561259
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Tur

Page 1404 of 4801

NISSAN TEANA 2014 Service Manual
EC-404
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0607 ECM
P0607 ECM
DTC LogicINFOID:0000000009462333
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn ignition switch OFF and wait at

Page 1405 of 4801

NISSAN TEANA 2014 Service Manual
P060A ECMEC-405
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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EC
NP
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P060A ECM
DTC LogicINFOID:0000000009561261
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Tur

Page 1406 of 4801

NISSAN TEANA 2014 Service Manual
EC-406
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P060B ECM
P060B ECM
DTC LogicINFOID:0000000009561263
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn ignition switch OFF and wait at

Page 1407 of 4801

NISSAN TEANA 2014 Service Manual
P0643 SENSOR POWER SUPPLYEC-407
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0643 SENSOR POWER SUPPLY
DescriptionINFOID:0000000009462335
ECM supplies a voltage of 5 V to some

P0643 SENSOR POWER SUPPLYEC-407
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P0643 SENSOR POWER SUPPLY
DescriptionINFOID:0000000009462335
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
DTC LogicINFOID:0000000009462336
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P0643 SENSOR POWER/CIRC
(Sensor reference voltage ″A ″
circuit high) ECM detects that the voltage of sensor
power supply 1 is excessively low or high. • Harness or connectors
(APP sensor 1 circuit is shorted.)
(Battery current sensor circuit is shorted.)
(CKP sensor (POS) circuit is shorted.)
(Intake manifold runner control valve posi-
tion sensor circuit is shorted.)
(TP sensor circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
• Accelerator pedal position sensor
• Battery current sensor
• CKP sensor (POS)
• Intake manifold runner control valve posi- tion sensor
• Throttle position sensor
• Refrigerant pressure sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 1408 of 4801

NISSAN TEANA 2014 Service Manual
EC-408
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0643 SENSOR POWER SUPPLY
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Refer to EC-408, "Diagnosis Procedure".
NO >>

EC-408
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P0643 SENSOR POWER SUPPLY
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Refer to EC-408, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462337
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection M95. Refer to Ground Inspection in GI-46, "Circuit Inspection"
.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
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.
• Battery current sensor (Refer to EC-429, "Component Inspection"
.)
• Crankshaft position sensor (POS) (Refer to EC-328, "Component Inspection (Crankshaft Position sensor)"
.)
• Intake manifold runner control valve position sensor (Refer to EC-465, "Diagnosis Procedure"
.)
• Refrigerant pressure sensor (Refer to EC-523, "Diagnosis Procedure"
.)
• TP sensor (Refer to EC-250, "Component Inspection"
.)
Is the inspection result normal?
+
-Voltag e
(Approx.)
APP sensor
Connector Terminal E40 4 Ground 5 V
ECM Sensor
Connector Terminal Name Connector Terminal
F13
*1
F90*2
64 Battery current sensor F5 1
72 CKP sensor (POS) F30 1
80 Electric throttle control actuator F57 2
84 Intake manifold runner control valve po-
sition sensor F52 1
E10
*1
E31*2
104 Refrigerant pressure sensor E219 1
122 APP sensor E40 4
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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