display NISSAN TEANA 2014 Service Manual

P050A, P050E COLD START CONTROLEC-873
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P050A, P050E COLD START CONTROL
DescriptionINFOID:0000000009462723
ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition.
This control promotes the activation of three way ca talyst by heating the catalyst and reduces emissions.
DTC LogicINFOID:0000000009462724
DTC DETECTION LOGIC
NOTE:
If DTC P050A, P050E is displayed with other DTC, first perform the trouble diagnosis for other DTC.
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 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-I
With CONSULT
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode with CONSULT.
4. Check the indication of “COOLAN TEMP/S”.
With GST
Follow the procedure “With CONSULT” above.
Is the value of
“COOLAN TEMP/S” between 4°C (39°F) and 36°C (97°F)?
YES >> GO TO 3.
NO-1 [If it is below 4 °C (39 °F)]>>Warm up the engine until the value of “COOLAN TEMP/S” reaches 4 °C
(39 °F) or more. Retry from step 1.
NO-2 [If it is above 36 °C (97 °F)]>>Cool engine down to less than 36 °C (97 °F). Retry from step 1.
3.PERFORM DTC CONFIRMATION PROCEDURE-II
With CONSULT
1. Set the select lever in N range.
2. Start the engine and warm up in idle with the value of “COOLAN TEMP/S” between 4°C (39 °F) and 40 °C
(104 °F) for more than 15 seconds.
3. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?
YES >> Proceed to EC-874, "Diagnosis Procedure".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P050A Cold start idle air control system
performance ECM does not control engine idle speed properly
when engine is started with pre-warming up con-
dition. • Lack of intake air volume
• Fuel injection system
•ECM
P050E Cold start engine exhaust temper-
ature too low The temperature of the catalyst inlet does not
rise to the proper temperature when the engine
is started with pre-warming up condition.
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EC-874
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P050A, P050E COLD START CONTROL
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462725
1.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-683, "Work Procedure"
.
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 2.
NO >> Follow the instruction of Idle Air Volume Learning.
2.CHECK INTAKE SYSTEM
Check for the cause of intake air volume lacking. Refer to the following.
• Crushed intake air passage
• Intake air passage clogging
• Clogging of throttle body
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning part
3.CHECK FUEL INJECTION SYSTEM FUNCTION
Perform DTC Confirmation Procedure for DTC P0171, P0174. Refer to EC-787, "DTC Logic"
.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Proceed to EC-788, "Diagnosis Procedure"
for DTC P0171, P0174.
4.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
See EC-873, "DTC Logic"
.
Is the 1st trip DTC P050A, P050E displayed again?
YES >> Replace ECM. Refer to EC-997, "Removal and Installation".
NO >> INSPECTION END
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EC-882
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0603 ECM POWER SUPPLY
2. Erase DTC.
3. Perform DTC CONFIRMATION PROCEDURE. See EC-881, "DTC Logic"
.
Is the 1st trip DTC P0603 displayed again?
YES >> Replace ECM. Refer to EC-997, "Removal and Installation".
NO >> INSPECTION END
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P0605 ECMEC-883
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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
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P0643 SENSOR POWER SUPPLYEC-885
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P0643 SENSOR POWER SUPPLY
DescriptionINFOID:0000000009462738
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
DTC LogicINFOID:0000000009462739
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 8 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Proceed to EC-885, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462740
1.CHECK SENSOR POWER SUPPLY 1
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
DTC No. Trouble diagnosis name
(Trouble diagnosis con- tent) DTC detecting condition Possible cause
P0643 SENSOR POWER/
CIRC
(Sensor power supply 1
circuit short) ECM detects a voltage of power source
for sensor is excessively low or high. Sensor power supply 1 circuit
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EC-890
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1148, P1168 CLOSED LOOP CONTROL
P1148, P1168 CLOSED LOOP CONTROL
DTC LogicINFOID:0000000009462745
DTC DETECTION LOGIC
NOTE:
DTC P1148 or P1168 is displayed wi th another DTC for A/F sensor 1.
Perform the trouble diagnosi s for the corresponding DTC.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1148 Closed loop control
function (bank 1) The closed loop control function for bank 1 does
not operate even when vehicle is being driven
in the specified condition. • Harness or connectors
(The A/F sensor 1 circuit is open or short-
ed.)
• A/F sensor 1
• A/F sensor 1 heater
P1168 Closed loop control
function (bank 2) The closed loop control function for bank 2 does
not operate even when vehicle is being driven
in the specified condition.
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P1212 TCS COMMUNICATION LINEEC-891
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P1212 TCS COMMUNICATION LINE
DescriptionINFOID:0000000009462746
This CAN communication line is used to control the
smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and “ABS actuator and electric unit (control unit)”.
Be sure to erase the malf unction information such as DTC not onl y for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
DTC LogicINFOID:0000000009462747
DTC DETECTION LOGIC
NOTE:
• If DTC P1212 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P1212 is displayed with DT C P0607, first perform the trouble diagnosis for DTC P0607. Refer
to EC-884, "DTC Logic"
.
Freeze frame data is not stored in the ECM for this self-diagnosis.
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-891, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462748
Perform the trouble diagnosis for TCS. Refer to BRC-55, "Work Flow".
NOTE:
If DTC P1212 is displayed with DTC UXXXX and/ or P0607, perform the following trouble diagnosis.
• Trouble diagnosis for DTC UXXXX Refer to EC-630, "DTC Index"
.
• Trouble diagnosis for DTC P0607 Refer to EC-884, "DTC Logic"
.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212 TCS communication line ECM cannot receive the information from
“ABS actuator and electric unit (control
unit)” continuously. • Harness or connectors
(The CAN communication line is open or short-
ed.)
• ABS actuator and electric unit (control unit)
• Dead (Weak) battery
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EC-892
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1217 ENGINE OVER TEMPERATURE
P1217 ENGINE OVER TEMPERATURE
DTC LogicINFOID:0000000009462749
DTC DETECTION LOGIC
NOTE:
• If DTC P1217 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P1217 is displayed with DTC P0607, first pe rform the trouble diagnosis for DTC P0607. Refer
to EC-884, "DTC Logic"
.
If the cooling fan or another component in the coo ling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnorma lly high temperature condition, a malfunction is
indicated.
CAUTION:
When a malfunction is indicated, be su re to replace the coolant. Refer to CO-35, "System Inspection"
.
Also, replace the engine oil. Refer to MA-27, "ENGINE OIL : Changing Engine Oil"
.
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-12, "FOR USA AND CANADA : Engine Cool-
ant Mixture Ratio".
2. After refilling coolant, run engine to en sure that no water-flow noise is emitted.
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-892, "Component Function Check"
.
NOTE:
Use component function check to check the overall functi on of the cooling fan. During this check, a DTC might
not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-893, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462750
1.PERFORM COMPONENT FUNCTION CHECK-I
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
DTC No. Trouble diagnosis name
(Trouble diagnosis con-
tent) DTC detecting condition Possible cause
P1217 ENG OVER TEMP
[Engine over tempera-
ture (Overheat)] • Cooling fan does not operate properly (Over-
heat).
• Cooling fan system does not operate properly
(Overheat).
• Engine coolant was not added to the system using the proper filling method.
• Engine coolant is not within the specified
range. • Harness or connectors
(Cooling fan circuit is open or shorted.)
•IPDM E/R
• Cooling fan motor
•Radiator hose
•Radiator
•Radiator cap
• Reservoir tank
• Water pump
•Thermostat
• Water control valve
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P1550 BATTERY CURRENT SENSOREC-897
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P1550 BATTERY CURRENT SENSOR
DTC LogicINFOID:0000000009462756
DTC DETECTION LOGIC
NOTE:
If DTC P1550 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-885, "DTC 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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and wait at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-897, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462757
1.CHECK BATTERY CURRENT SENSOR POWER SUPPLY
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between battery cu rrent sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
2.CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between battery current sensor harness connector and ECM harness connector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1550 Battery current sensor circuit
range/performance The output voltage of the battery current
sensor remains within the specified
range while engine is running. • Harness or connectors
(The sensor circuit is open or shorted.)
• Battery current sensor
Battery current sensor Ground Voltage (V)
Connector Terminal
F5 1 Ground Approx. 5
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 3 F79 68 Existed
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