2014 NISSAN TEANA ignition

ECM
EC-623
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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56
(BR) 128
(GR) Intake valve timing control so-
lenoid valve (bank 2) Output[Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 7 - 12 V
57
(L) 128
(GR) Heated oxygen sensor 2
(bank 1) Input[Engine is running]
Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
• Engine: after warming up
• Keeping the engine speed be- tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load 0 - 1.0 V
58
(L) 128
(GR) Heated oxygen sensor 2
(bank 2) Input[Engine is running]
Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
• Engine: after warming up
• Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load 0 - 1.0 V
59
(L) —Sensor ground
(Heated oxygen sensor 2) —— —
63
(W) 64
(P) Refrigerant pressure sensor Input [Engine is running]
• Warm-up condition
• Both A/C switch and blower
fan motor switch: ON (Com-
pressor operates) 1.0 - 4.0 V
64
(P) —Sensor ground
(Refrigerant pressure sensor) —— —
66
(G) 68
(R) Battery current sensor Input [Engine is running]
• Battery: Fully charged*
2
• Idle speed 2.6 - 3.5 V
67
(W) 68
(R) Battery temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with battery temperature.
68
(R) —Sensor ground
(Battery curre nt sensor) —— —
69
(W) 128
(GR) A/F sensor 1 (bank 1) Input [Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 2.2 V
Output voltage varies with air fuel ratio.
70
(BR) 76
(B) Engine coolant temperature
sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
coolant temperature.
73
(B) 128
(GR) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 1.8 V
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0038GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-624
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
74
(V) 80
(BR) Intake air temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake air temperature.
75
(O) 68
(R) Sensor power supply
(Battery current sensor) — [Ignition switch: ON] 5 V
76
(B) —Sensor ground
(Engine coolant temperature
sensor, engine oil tempera-
ture sensor) —— —
77
(W) 128
(GR) A/F sensor 1 (bank 2) Input [Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 2.2 V
Output voltage varies with air fuel ratio.
78
(G) 76
(B) Engine oil temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
oil temperature.
80
(BR) —Sensor ground
(Mass air flow sensor, intake
air temperature sensor) —— —
81
(B) 128
(GR) A/F sensor 1 (bank 2) Input [Ignition switch: ON] 1.8 V
82
(P) 80
(BR) Mass air flow sensor Input [Engine is running]
• Warm-up condition
• Idle speed 0.9 - 1.2 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.6 - 1.9 V
83
(V) 88
(SB) Sensor power supply
[Camshaft position sensor
(PHASE) (bank 1)] — [Ignition switch: ON] 5 V
84
(SB) —Sensor ground
[Crankshaft position sensor
(POS)] —— —
85
(B) 91
(B) Knock sensor (bank 1) Input [Engine is running]
Idle speed 2.5 V*
1
86
(W) 91
(B) Knock sensor (bank 2) Input [Engine is running]
Idle speed 2.5 V*1
87
(V) 92
(SB) Sensor power supply
[Camshaft position sensor
(PHASE) (bank 2)] — [Ignition switch: ON] 5 V
88
(SB) —Sensor ground
[Camshaft position sensor
(PHASE) (bank 1)] —— —
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-626
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
96
(R) 64
(P) Sensor power supply
(Refrigerant pressure sensor) — [Ignition switch: ON] 5 V
97
(W) 100
(O) Accelerator pedal position
sensor 1 Input[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased 0.5 - 1.0 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed 4.2 - 4.8 V
98
(P) 11 6
(G) Accelerator pedal position
sensor 2 Input[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased 0.25 - 0.50 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed 2.0 - 2.5 V
99
(R) 100
(O) Sensor power supply
(Accelerator pedal position
sensor 1) — [Ignition switch: ON] 5 V
100 (O) —Sensor ground
(Accelerator pedal position
sensor 1) —— —
101 (O) 108
(R) ASCD steering switch Input [Ignition switch: ON]
ASCD steering switch: OFF 4 V
[Ignition switch: ON]
MAIN switch: Pressed 0 V
[Ignition switch: ON]
CANCEL switch: Pressed 1 V
[Ignition switch: ON]
RESUME/ACCELERATE
switch: Pressed 3 V
[Ignition switch: ON]
SET/COAST switch: Pressed 2 V
102 (G) 11 2
(R) EVAP control system pres-
sure sensor Input [Ignition switch: ON] 1.8 - 4.8 V
103 (G) 11 6
(G) Sensor power supply
(Accelerator pedal position
sensor 2) — [Ignition switch: ON] 5 V
104 (P) — Data link connector
Input/
Output ——
106 (Y) 128
(GR) EVAP canister vent control
valve Output [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
107 (P) 11 2
(R) Sensor power supply
(EVAP control system pres-
sure sensor, engine oil pres-
sure sensor) — [Ignition switch: ON] 5 V
108 (R) —Sensor ground
(ASCD steering switch) —— —
109 (L) 128
(GR) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-627
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*1: This may vary depending on internal resistance of the tester.
*2: Before measuring the terminal voltage, confi rm that the battery is fully charged. Refer to PG-4, "How to
Handle Battery".
Fail-safeINFOID:0000000009462543
NON DTC RELATED ITEM
111
(O) 120
(SB) Fuel tank temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with fuel tank temperature.
11 2 (R) —Sensor ground
(EVAP control system pres-
sure sensor, engine oil pres-
sure sensor) —— —
11 3 (P) —CAN communication line
(CAN-L) Input/
Output ——
11 4 (L) —CAN communication line
(CAN-H) Input/
Output ——
11 6 (G) —Sensor ground
(Accelerator pedal position
sensor 2) —— —
11 8
(W) 128
(GR) PNP signal Input [Ignition switch: ON]
Selector lever: P or N position BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
Selector lever: Except above
position 0 V
120
(SB) —Sensor ground
(Fuel tank temperature sen-
sor) —— —
121
(LG) 128
(GR) Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
122 (L) 128
(GR) Stop lamp switch Input [Ignition switch: OFF]
Brake pedal: Fully released 0 V
[Ignition switch: OFF]
Brake pedal: Slightly depressed BATTERY VOLTAGE
(11 - 14 V)
123
(GR)
124
(GR) — ECM ground — — —
126
(BR) 128
(GR) Brake pedal position switch Input [Ignition switch: ON]
Brake pedal: Slightly depressed 0 V
[Ignition switch: ON]
Brake pedal: Fully released BATTERY VOLTAGE
(11 - 14 V)
127
(GR) 128
(GR) — ECM ground — — —
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-628
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
DTC RELATED ITEM
Engine operating condi-
tion in fail-safe mode Detected items Remarks
Reference
page
Engine speed will not
rise more than 2,500 rpm
due to the fuel cut Malfunction indicator
lamp circuit When there is an open circuit on MIL circuit, the ECM cannot warn the
driver by illuminating MIL when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MIL circuit is open
by means of operating the fail-safe function.
The fail-safe function also operates when above diagnoses except MIL
circuit are detected and demands the driver to repair the malfunction. EC-973
DTC No. Detected items Engine operating condition in fail-safe mode
P0011
P0021 Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve
control does not function.
P0101
P0102
P0103 Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118 Engine coolant tempera-
ture sensor circuit Engine coolant temperature will be determined by ECM based on the following condition.
CONSULT displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT display)
Just as ignition switch is turned ON
or START 40
°C (104 °F)
Approx 4 minutes or more after en-
gine starting 80
°C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
Therefore, the acceleration will be poor.
P0196
P0197
P0198 Engine oil temperature
sensor Intake valve timing control does not function.
P0500 Vehicle speed sensor The cooling fan operates (Highest) while engine is running.
P0524 Engine oil pressure • ECM illuminates oil pressure warning lamp on the combination meter.
• Engine speed will not rise more than 4,000 rpm due to the fuel cut.
• Fail-safe is canceled when ignition switch OFF → ON.
P0605 ECM (When ECM calculation function is malfunctioning:) ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
ECM deactivates ASCD operation.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P1805 Brake switch ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS AND REPAIR WORKFLOWEC-671
< BASIC INSPECTION > [VQ35DE]
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ODETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
1. Get the detailed information from the custom er about the symptom (the condition and the environment
when the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to EC-673, "Diagnostic
Work Sheet".)
2. Ask if the customer requests I/M examination.
Malfunction information, obtained>>GO TO 2.
No Malfunction information, but a request for I/M examination>>GO TO 13.
2.CHECK DTC
1. Check DTC of “All DTC Reading”.
2. Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data. (Pri nt them out with CONSULT or GST.)
- Erase only DTC of “ENGINE”.
With CONSULT: Refer to “How to Erase DTC and 1st Trip DTC” in EC-601, "CONSULT Function"
.
Without CONSULT: Refer to “How to Erase Self-diagnostic Results” in EC-598, "On Board Diagnosis
Function".
- Turn ignition switch OFF.
- Study the relationship between the cause detected by DTC and the symptom described by the customer.
(Symptom Table is useful. Refer to EC-987, "Symptom Table"
.)
3. Check related service bulletins for information.
Are any symptoms described and any DTCs detected?
Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.
3.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer (except MIL ON).
Also study the normal operation and fail-safe related to the symptom. Refer to EC-991, "Description"
and EC-
627, "Fail-safe".
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 5.
4.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom. Refer to EC-991, "Description"
and EC-
627, "Fail-safe".
Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and t he condition when the symptom is detected.
>> GO TO 6.
5.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the di splayed DTC, and then make sure that DTC is
detected again.
If two or more DTCs are detected, refer to EC-629, "DTC Inspection Priority Chart"
and determine trouble
diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
*1: Include 1st trip DTC.
*2: Include 1st trip freeze frame data.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-676
< BASIC INSPECTION >[VQ35DE]
BASIC INSPECTION
2. Rev engine (2,000 to 3,000 rpm) 2 or 3 times under no load,
then run engine at idle speed for approximately 1 minute.
3. Check idle speed.
For procedure, refer to EC-992, "Work Procedure"
.
For specification, refer to EC-998, "Idle Speed"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 4.
4.PERFORM ACCELERATOR PEDAL RE LEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-681, "Work Procedure"
.
>> GO TO 5.
5.PERFORM THROTTLE VALVE CL OSED POSITION LEARNING
Perform EC-682, "Work Procedure"
.
>> GO TO 6.
6.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-683, "Work Procedure"
.
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 7.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
7.CHECK IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to EC-992, "Work Procedure"
.
For specification, refer to EC-998, "Idle Speed"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the Following.
• Check camshaft position sensor (PHASE) and circuit. Refer to EC-820, "Diagnosis Procedure"
.
• Check crankshaft position sensor (POS) and circuit. Refer to EC-817, "Diagnosis Procedure"
.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace malfunctioning part. Then GO TO 4.
9.CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check EC M function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NAT S) system and registration of all NVIS (NATS) ignition key IDs. Refer to
SEC-66, "ECM : Work Procedure"
.
>> GO TO 4.
10.CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
For procedure, refer to EC-993, "Work Procedure"
.
PBIA8513J
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BASIC INSPECTIONEC-677
< BASIC INSPECTION > [VQ35DE]
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For specification, refer to
EC-998, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 19.
NO >> GO TO 11.
11 .PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-681, "Work Procedure"
.
>> GO TO 12.
12.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-682, "Work Procedure"
.
>> GO TO 13.
13.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-683, "Work Procedure"
.
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 14.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
14.CHECK IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to EC-992, "Work Procedure"
.
For specification, refer to EC-998, "Idle Speed"
.
Is the inspection result normal?
YES >> GO TO 15.
NO >> GO TO 17.
15.CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light. For procedure, refer to EC-993, "Work Procedure"
.
For specification, refer to EC-998, "Ignition Timing"
.
Is the inspection result normal?
YES >> GO TO 19.
NO >> GO TO 16.
16.CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-182, "Exploded View"
.
Is the inspection result normal?
YES >> GO TO 17.
NO >> Repair the timing chain installation. Then GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
• Check camshaft position sensor (PHASE) and circuit. Refer to EC-820, "Diagnosis Procedure"
.
• Check crankshaft position sensor (POS) and circuit. Refer to EC-817, "Diagnosis Procedure"
.
Is the inspection result normal?
YES >> GO TO 18.
NO >> Repair or replace malfunctioning part. Then GO TO 4.
18.CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check EC M function. (ECM may be the cause of the incident,
although this is rare.)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM