2014 NISSAN TEANA battery

DIAGNOSIS SYSTEM (ECM)EC-83
< SYSTEM DESCRIPTION > [QR25DE]
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LO SPEED CUT Non/Cut
• Indicates the vehicle cruise condition.
- Non: Vehicle speed is maintained at the ASCD set speed.
- Cut: Vehicle speed decreased to exces- sively low, and ASCD operation is cut off.
AT OD MONITOR On/Off • Indicates [ON/OFF] condition of CVT O/
D according to the input signal from the
TCM.
AT OD CANCEL On/Off • Indicates [ON/OFF] condition of CVT O/
D cancel request signal.
CRUISE LAMP On/Off • Indicates [ON/OFF]
condition of CRUISE
lamp determined by the ECM according
to the input signals.
SET LAMP On/Off • Indicates [ON/OFF] condition of SET
lamp determined by the ECM according
to the input signals.
ALT DUTY % • Indicates the duty ratio of the power gen-
eration command value. The ratio is calu-
culated by ECM based on the battery
current sensor signal.
BAT CUR SEN mV • The signal voltage of battery current sen-
sor is displayed.
A/F ADJ-B1 — • Indicates the correction of factor stored in
ECM. The factor is calculated from the
difference between the target air-fuel ra-
tio stored in ECM and the air-fuel ratio
calculated from A/F sensor 1 signal.
TUMBLE POS SEN V • The intake manifold runner control valve
position sensor signal voltage is dis-
played.
P/N POSI SW On/Off ×ו Indicates [ON/OFF] condition from the
park/neutral position (PNP) signal.
INT/A TEMP SE °C or °F ×× • The intake air temperature (determined
by the signal voltage of the intake air tem-
perature senso r) is indicated.
AC PRESS SEN V • The signal voltage from the refrigerant
pressure sensor is displayed.
VTC DTY EX B1 % • The control value of the exhaust valve
timing control solenoid valve (determined
by ECM according to the input signals) is
indicated.
• The advance angle becomes larger as the value increases.
EVAP LEAK DIAG YET/CMPLT • Indicates the condition of EVAP leak di-
agnosis.
YET: EVAP leak diagnosis has not been
performed yet.
CMPLT: EVAP leak diagnosis has been
performed successfully.
Monitored item Unit
Monitor Item
Selection
Description Remarks
ECU
IN-
PUT
SIG-
NALS MAIN
SIG-
NAL S
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-84
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: The item is indicated, but not used.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
EVAP DIAG
READY ON/OFF • Indicates the ready condition of EVAP
leak diagnosis.
ON: Diagnosis has been ready condition.
OFF: Diagnosis has not been ready con-
dition.
BAT TEMP SEN V • The signal voltage of battery temperature
sensor is displayed.
EOP SENSOR mV • The signal voltage of battery temperature
sensor is displayed.
THRTL STK CNT
B1
*——
A/F SEN1
DIAG1(B1) INCMP/CM-
PLT • Indicates DTC P015A or P015B self-di-
agnosis condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
A/F SEN1
DIAG2(B1) INCMP/CM-
PLT • Indicates DTC P014C or P014D self-di-
agnosis condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
A/F SEN1
DIAG3(B1) ABSNT/
PRSNT • Indicates DTC P014C, P014D, P015A or
P015B self-diagnosis condition.
- ABSNT: The vehicle co ndition is not with-
in the diagnosis range.
- PRSNT: The vehicle condition is within the diagnosis range.
HO2 S2 DIAG1
(B1) INCMP/CM-
PLT • Indicates DTC P0139 self-diagnosis (de-
layed response) condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
HO2 S2 DIAG2
(B1) INCMP/CM-
PLT • Indicates DTC P0139 self-diagnosis
(slow response ) condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
SYSTEM 1 DIAG-
NOSIS A B1 INCMP/CM-
PLT • Indicates DTC P117A self-diagnosis con-
dition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
SYSTEM 1 DIAG-
NOSIS B B1 ABSNT/
PRSNT • Indicates DTC P117A self-diagnosis con-
dition.
- ABSNT: Self-diagnosis standby
- PRSNT: Under self-diagnosis
A/F-S ATMSPHRC
CRCT B1 —Displays a determined value of atmospher-
ic correction factor necessary for correcting
an A/F sensor signal input to ECM. The sig-
nal used for the correction is an A/F sensor
signal transmitted while driving under atmo-
spheric pressure.
A/F-S ATMSPHRC
CRCT UP B1 count Displays the number of updates of the A/F
sensor atmospheric correction factor.
Monitored item Unit
Monitor Item
Selection
Description Remarks
ECU
IN-
PUT
SIG-
NALS MAIN
SIG-
NAL S
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM (ECM)EC-85
< SYSTEM DESCRIPTION > [QR25DE]
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WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
Work item Condition Usage
IDLE AIR VOL LEARN • The idle air volume that keeps the engine within the spec- ified range is memorized in ECM. When learning the idle air volume
EVAP SYSTEM CLOSE Close the EVAP canister vent control valve in order to make
EVAP system close under the following conditions.
• Ignition switch ON
• Engine not running
• Ambient temperature is above 0 °C (32 °F).
• No vacuum and no high pressure in EVAP system
• Fuel tank temp is more than 0 °C (32 °F).
• Within 10 minutes after starting “EVAP SYSTEM CLOSE”
• When trying to execute “EVAP SYSTEM CLOSE” under the condition except above, CONSULT will discontinue it
and display appropriate instruction.
NOTE:
When starting engine, CONSULT may display “BAT-
TERY VOLTAGE IS LOW. CHARGE BATTERY”, even in
when using a charged battery. When detecting EVAP vapor leak
in the EVAP system
FUEL PRESSURE RELEASE • Fuel pump will st op by touching “START” during idling.
Crank a few times after engine stalls. When releasing fuel pressure from
fuel line
TARGET IGN TIM ADJ* • Idle condition When adjusting target ignition tim- ing
TARGET IDLE RPM ADJ* • Idle condition When setting target idle speed
VIN REGISTRATION • In this mode , VIN is registered in ECM. When registering VIN in ECM
SELF-LEARNING CONT • The coefficient of self-learning control mixture ratio returns to the original coefficient. When clearing mixture ratio self-
learning value
CLSD THL POS LEARN • Ignition on and engine stopped. When learning the throttle valve
closed position
SAVING DATA FOR REPLC CPU In th is mode, save data that is in ECM. When ECM is replaced.
WRITING DATA FOR REPLC CPU In this mode, write data stored by “SAVE DATA FOR CPU
REPLC” in work support mode to ECM. When ECM is replaced.
Test item Condition Judgment Check item (Remedy)
FUEL INJECTION • Engine: Return to the original
trouble condition
• Change the amount of fuel injec- tion using CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
ENG COOLANT
TEMP • Engine: Return to the original
trouble condition
• Change the engine coolant tem- perature using CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Engine coolant temperature
sensor
• Fuel injector
PURG VOL CONT/V • Engine: After warming up, run en-
gine at 1,500 rpm.
• Change the EVAP canister purge volume control solenoid valve
opening percent using CON-
SULT. Engine speed changes according
to the opening percent. • Harness and connectors
• Solenoid valve
FUEL/T TEMP SEN • Change the fuel tank temperature using CONSULT.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-86
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
DTC WORK SUPPORT Mode
ALTERNATOR
DUTY • Engine: Idle
• Change duty ratio using CON-
SULT. Battery voltage changes.
• Harness and connectors
•IPDM E/R
•Alternator
FUEL PUMP RELAY • Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON”
and “OFF” using CONSULT and
listen to operating sound. Fuel pump relay makes the operat-
ing sound. • Harness and connectors
• Fuel pump relay
VIAS S/V-1 • Ignition switch: ON
• Turn intake manifold tuning valve
“ON” and “OFF” using CONSULT
and listen to operating sound. Intake manifold tuning valve motor
makes an operating sound. • Harness and connectors
• Intake manifold tuning valve mo- tor
TUMBLE CONTROL
VA LV E • Ignition switch: ON
• Turn intake manifold runner con-
trol valve “ON” and “OFF” using
CONSULT and listen to operating
sound. Intake Manifold Runner control
valve motor makes an operating
sound. • Harness and connectors
• Intake Manifold Runner control valve motor
IGNITION TIMING • Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Perform Idle Air Volume Learn-
ing.
POWER BALANCE • Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: P or N
• Cut off each fuel injector signal one at a time using CONSULT. Engine runs rough or stops. • Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
VENT CONTROL/V • Ignition switch: ON (Engine
stopped)
• Turn solenoid valve “ON” and “OFF” using CONSULT and listen
to operating sound. Solenoid valve makes an operating
sound. • Harness and connectors
• Solenoid valve
INT V/T ASSIGN AN-
GLE • Engine: Return to the original
trouble condition
• Change intake valve timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Intake valve timing control sole- noid valve
EXH V/T ASSIGN
ANGLE • Engine: Return to the original
trouble condition
• Change exhaust valve timing us- ing CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Exhaust valve timing control so-
lenoid valve
COOLING FAN* • Ignition switch: ON
• Turn the cooling fan “LOW”, “HI” and “OFF” using CONSULT. Cooling fan moves and stops. • Harness and connectors
• IPDM E/R (Cooling fan relay)
• Cooling fan motor
Test item Condition Judgment Check item (Remedy)
Test mode Test item Corresponding DTC No. Reference page
EVAPORATIVE SYSTEM PURG FLOW P0441 P0441
EC-337
PURG VOL CN/V P1444 P0443EC-342
A/F SEN1 A/F SEN1(B1) P1276 P0130 EC-258
HO2S2HO2S2(B1) P1146 P0138
EC-274HO2S2(B1) P1147 P0137EC-268
HO2S2(B1) P0139 P0139EC-282
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-88
< ECU DIAGNOSIS INFORMATION >[QR25DE]
ECM
ECU DIAGNOSIS INFORMATION
ECM
Reference ValueINFOID:0000000009462121
VALUES ON THE DIAGNOSIS TOOL
NOTE:
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica- ble to this vehicle, refer to CONSULT display items.
• Numerical values in the following table are reference values.
• These values are input/output values that ECM receiv es/transmits and may differ from actual operations.
Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the
data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from
the camshaft position sensor and other sensors related to ignition timing.
• For outlines of following items, refer to EC-77, "CONSULT Function"
.
Monitor Item Condition Values/Status
ENG SPEED • Run engine and compare CONSULT value with the tachometer indication.Almost the same speed as
the tachometer indication.
MAS A/F SE-B1 See EC-196, "Diagnosis Procedure"
.
B/FUEL SCHDL See EC-196, "Diagnosis Procedure"
.
A/F ALPHA-B1 See EC-196, "Diagnosis Procedure"
.
COOLAN TEMP/S • Engine: After warming up More than 70 °C (158 °F)
A/F SEN1 (B1) • Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 2.2 V
HO2S2 (B1) • Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1 minute under no load 0 - 0.3 V
←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR(B1) • Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load LEAN
←→ RICH
VHCL SPEED SE • Turn drive wheels and compare CONSULT value with the speedometer indi-
cation. Almost the same speed as
speedometer indication
BATTERY VOLT • Ignition switch: ON (Engine stopped) 11 - 14 V
ACCEL SEN 1 • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V
ACCEL SEN 2*
1• Ignition switch: ON (Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V
TP SEN 1-B1 • Ignition switch: ON
(Engine stopped)
• Selector lever: D Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
TP SEN 2-B1*
1• Ignition switch: ON (Engine stopped)
• Selector lever: D Accelerator pedal: Fully released Less than 4.75 V
Accelerator pedal: Fully depressed More than 0.36 V
FUEL T/TMP SE • Ignition switch: ON Indicates fuel tank tempera-
ture
EVAP SYS PRES • Ignition switch: ON Approx. 1.8 - 4.8 V
FUEL LEVEL SE • Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL • Ignition switch: ON → START → ON Off → On → Off
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-91
< ECU DIAGNOSIS INFORMATION > [QR25DE]
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CANCEL SW • Ignition switch: ON
CANCEL switch: Pressed On
CANCEL switch: Released Off
RESUME/ACC SW • Ignition switch: ON RESUME/ACCELERATE switch:
Pressed On
RESUME/ACCELERATE switch: Re-
leased Off
SET SW • Ignition switch: ON SET/COAST switch: Pressed On
SET/COAST switch: Released Off
BRAKE SW1
(Brake pedal posi-
tion switch) • Ignition switch: ON Brake pedal: Fully released On
Brake pedal: Slightly depressed Off
BRAKE SW2
(Stop lamp switch) • Ignition switch: ON Brake pedal: Fully released Off
Brake pedal: Slightly depressed On
VHCL SPD CUT • Ignition switch: ON Non
LO SPEED CUT • Ignition switch: ON Non
AT OD MONITOR • Ignition switch: ON Off
AT OD CANCEL • Ignition switch: ON Off
CRUISE LAMP • Ignition switch: ON MAIN switch: Pressed at the 1st time
→
at the 2nd time On
→ Off
SET LAMP • MAIN switch: ON
• When vehicle speed: Between 40 km/h (25 MPH) and 144 km/h (89
MPH) ASCD: Operating On
ASCD: Not operating Off
ALT DUTY • Engine speed: Idle 0 - 80%
BAT CUR SEN • Engine speed: Idle
• Battery: Fully charged
*2
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Approx. 2,600 - 3,500 mV
A/F ADJ-B1 • Engine: running –0.330 - 0.330
TUMBLE POS SEN • Ignition switch: ON
• Engine coolant temperature: Be-
tween -12 °C (10 °F) and 59 °C
(138 °F) Accelerator pedal: Fully released Less than 1.4 V
Accelerator pedal: Fully depressed More than 2.8 V
P/N POSI SW • Ignition switch: ON Selector lever: P or N On
Selector lever: Except above Off
INT/A TEMP SE • Ignition switch: ON Indicates intake air tempera-
ture
AC PRESS SEN • Engine speed: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates) 1.0 - 4.0 V
VTC DTY EX B1 • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 0 - 2%
2,000 rpm Approx. 0- 90%
EVAP LEAK DIAG • Ignition switch: ON Depending on condition of
EVAP leak diagnosis
EVAP DIAG READY • Ignition switch: ON Depending on ready condi-
tion of EVAP leak diagnosis
BAT TEMP SEN • Engine: After warming up, idle the engine
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Indicates the temperature
around the battery.
Monitor Item Condition Values/Status
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-92
< ECU DIAGNOSIS INFORMATION >[QR25DE]
ECM
*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, the
y differ
from ECM terminals voltage signal.
*2: Before measuring the voltage, confirm that the battery is fully charged. Refer to PG-4, "How to Handle Battery"
.
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
• ECM is located in the engine room left side near battery.
• Specification data are reference values and are measured between each terminal and ground.
• Pulse signal is measured by CONSULT.
EOP SENSOR • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 1,000 - 2,000 mV
2,000 rpm 1,500 - 3,500 mV
THRTL STK CNT B1 NOTE:
The item is indicated, but not used. —
A/F SEN1 DIAG1
(B1) DTC P015A and P015B self-diagnosis is incomplete. INCMP
DTC P015A and P015B self-diagnosis is complete. CMPLT
A/F SEN1 DIAG2
(B1) DTC P014C and P014D self-diagnosis is incomplete. INCMP
DTC P014C and P014D self-diagnosis is complete. CMPLT
A/F SEN1 DIAG3
(B1) The vehicle condition is not within the diagnosis range of DTC P014C, P014D,
P015A or P015B. ABSNT
The vehicle condition is within the diagnosis range of DTC P014C, P014D,
P015A or P015B. PRSNT
HO2 S2 DIAG1 (B1) DTC P0139 self-diagnosis (delayed response) is incomplete. INCMP
DTC P0139 self-diagnosis (delayed response) is complete. CMPLT
HO2 S2 DIAG2 (B1) DTC P0139 self-diagnosis (slow
response) is incomplete. INCMP
DTC P0139 self-diagnosis (slo w response) is complete. CMPLT
SYSTEM 1 DIAG-
NOSIS A B1 DTC P117A self-diagnosis is incomplete. INCMP
DTC P117A self-diagnosis is complete. CMPLT
SYSTEM 1 DIAG-
NOSIS B B1 DTC P117A self-diagnosis
is on standby. ABSENT
DTC P117A self-diagnosis is under diagnosis. PRSENT
A/F-S ATMSPHRC
CRCT B1 Engine: After warming up, idle the engine Varies depending on vehicle
environment.
A/F-S ATMSPHRC
CRCT UP B1 Engine: Running Varies depending on the
number of updates.
Monitor Item Condition Values/Status
JSBIA0505ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-93
< ECU DIAGNOSIS INFORMATION > [QR25DE]
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Terminal No.
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
1
(G) 128
(GR) Throttle control motor
(Close) Output[Ignition switch: ON]
• Engine stopped
• Selector lever: D
• Accelerator pedal: Fully released 1.8 V
2
(R) 128
(GR) Throttle control motor
power supply Input [Ignition switch: ON]
Battery voltage
(11 - 14 V)
3
(BG) 128
(GR) Throttle control motor
(Open) Output[Ignition switch: ON]
• Engine stopped
• Selector lever: D
• Accelerator pedal: Fully depressed 3.2 V
4
(W) 8
(B) Knock sensor Input [Engine is running]
• Idle speed 2.5 V
5
(W) 128
(GR) Intake manifold tuning
valve motor (Close) Output[Ignition switch ON]
• Engine coolant temperature: more than -30 °C (-22 °F)
• Accelerator pedal: Depressed → ful-
ly released Battery voltage appears for about
1 second.
6
(L) 128
(GR) Intake manifold tuning
valve motor power supply Input [Ignition switch: ON]
Battery voltage
(11 - 14 V)
7
(B) 128
(GR) Intake manifold tuning
valve motor (Open) Output[Ignition switch ON]
• Engine coolant temperature: more
than -30 °C (-22 °F)
• Accelerator pedal: Fully released →
depressed Battery voltage appears for about
1 second.
8
(B) —Sensor ground
(Knock sensor) —— —
9
(Y) 10
(BR)
13
(BR) 14
(Y) 128
(GR) Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 2 Output[Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending
on rpm at idle Battery voltage
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm Battery voltage
(11 - 14 V)
JMBIA0326GB
JMBIA0324GB
JMBIA0089GB
JMBIA0090GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM