2014 NISSAN TEANA ignition

EC-962
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
FUEL INJECTOR
FUEL INJECTOR
Component Function CheckINFOID:0000000009462842
1.INSPECTION START
Turn ignition switch to START.
Are any cylinders ignited?
YES >> GO TO 2.
NO >> Proceed to EC-962, "Diagnosis Procedure"
.
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
3. Check that each circuit produces a momentary engine speed drop.
Without CONSULT
1. Start engine.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-962, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462843
1.CHECK FUEL INJECTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel injector harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between fuel injector harness connector and IPDM E/R harness connector.
Clicking sound should be heard.
PBIB3332E
Fuel injector
Ground Voltage
Cylinder Connector Terminal
1F171
Ground Battery voltage
2F181
3F191
4F201
5F211
6F221
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

FUEL INJECTOREC-963
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel injector 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 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK FUEL INJECTOR
Check fuel injector. Refer to EC-963, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning fuel injector. Refer to EM-163, "Removal and Installation"
.
5.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to 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 error-detected parts.
Component InspectionINFOID:0000000009462844
1.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
Fuel injector IPDM E/R Continuity
Cylinder Connector Terminal Connector Terminal
1F171
F8354
Existed
2F181 60
3F191 54
4F201 60
5F211 54
6F221 60
Fuel injector ECM Continuity
Cylinder Connector Terminal Connector Terminal
1F172
F7833
Existed
2F182 44
3F192 48
4F202 47
5F212 46
6F222 45
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

FUEL PUMPEC-965
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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FUEL PUMP
Component Function CheckINFOID:0000000009462845
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >> EC-965, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462846
1.CHECK FUEL PUMP RELAY POWER SUPPLY-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK FUEL PUMP RELAY POWER SUPPLY-II
Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 7.
3.CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit. Fuel pressure pulsation should
be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
JMBIA1696ZZ
ECM
Vol tag e
+–
Connector Terminal Connector Terminal F78 43 E32 128 Battery voltage
IPDM E/R Ground Voltage
Connector Terminal
F84 69 Ground Battery voltage
ECM IPDM E/R Continuity
Connector Terminal Connector Terminal
F7843F8469 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-966
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
FUEL PUMP
NO >> Repair or replace error-detected parts.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT
1. Disconnect “fuel level sensor uni t and fuel pump” harness connector.
2. Check harness continuity between IPDM E/R har ness connector and “fuel level sensor unit and fuel
pump” harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to power in harness or connectors.
5.CHECK FUEL PUMP GROUND CIRCUIT
1. Disconnect “fuel level sensor uni t and fuel pump” harness connector.
2. Check the continuity between “fuel level s ensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair open circuit or short to power in harness or connectors.
6.CHECK FUEL PUMP
Check fuel pump. Refer to EC-966, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace fuel pump. Refer to FL-6, "Exploded View"
.
7.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to 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 error-detected parts.
Component InspectionINFOID:0000000009462847
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit (fuel pump)” harness connector.
3. Check resistance between “fuel level sensor unit (fuel pump)” terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace fuel level sensor unit, fuel filter and fuel pump assembly. Refer to FL-6, "Removal and
Installation".
IPDM E/RFuel level sensor unit and fuel
pump Continuity
Connector Terminal Connector Terminal
E1815B42 6 Existed
Fuel level sensor unit and fuel pump Ground Continuity
Connector Terminal
B42 4 Ground Existed
Terminals Resistance [at 25 °C (77 °F)]
4 and 6 0.2 - 5.0 Ω
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

IGNITION SIGNALEC-967
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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IGNITION SIGNAL
Component Function CheckINFOID:0000000009462848
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT: GO TO 2.
YES-2 >> Without CONSULT: GO TO 3.
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
2.CHECK IGNITION SIGNAL FUNCTION
With CONSULT
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
2. Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT
1. Let engine idle.
2. Read the voltage signal between ECM harness connector terminals with an oscilloscope.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-967, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462849
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch OFF, wait at least 10 seconds and then turn it ON.
2. Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EC-709, "Diagnosis Procedure"
.
ECM
Voltage signal
+–
Connector Terminal Connector Terminal
F78 9
E32 128
10
11
13
14
15
JMBIA0035GB
ECM Vo l ta g e
Connector Terminal Connector Terminal
F78 31 E32 128 Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-968
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
2.CHECK CONDENSER POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn ignition switch ON.
4. Check the voltage between condenser harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK CONDENSER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and condenser harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> Refer to EC-709, "Diagnosis Procedure".
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK CONDENSER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check the continuity between condenser harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to power in harness or connectors.
5.CHECK CONDENSER
Check condenser. Refer to EC-971, "Component Inspection (Condenser)"
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace condenser.
6.CHECK IGNITION COIL POWER SUPPLY
1. Reconnect all harness connectors disconnected.
2. Disconnect ignition coil harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ignition coil harness connector and ground.
Condenser Ground Voltage
Connector Terminal
F26 1 Ground Battery voltage
IPDM E/R Condenser Continuity
Connector Terminal Connector Terminal
F8355F26 1Existed
Condenser Ground Continuity
Connector Terminal
F26 2 Ground Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

IGNITION SIGNALEC-969
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace harness or connectors.
7.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between ignition coil harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair open circuit or short to power in harness or connectors.
8.CHECK IGNITION COIL OUTPUT SI GNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ignition coil harness connector and ECM harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-970, "Component Inspection (Ignition Coil with Power
Transistor)".
Ignition coil
Ground Voltage
Cylinder Connector Terminal
1F343
Ground Battery voltage
2F353
3F363
4F373
5F383
6F393
Ignition coil Ground Continuity
Cylinder Connector Terminal
1F342
Ground Existed
2F352
3F362
4F372
5F382
6F392
Ignition coil ECM Continuity
Cylinder Connector Terminal Connector Terminal
1F341
F7811
Existed
2F351 10
3F361 9
4F371 15
5F381 14
6F391 13
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-970
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
Component Inspection (Igniti on Coil with Power Transistor)INFOID:0000000009462850
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-162, "Removal and Instal-
lation LH" or EM-162, "Removal and Installation RH".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more
away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> INSPECTION END
Terminal No. (Polarity) Resistance Ω [at 25 °C (77 °F)]
1 and 2 Except 0 or ∞
1 and 3 Except 0
2 and 3
Spark should be generated.
JMBIA0066GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM