sensor NISSAN TEANA 2014 Service Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2014, Model line: TEANA, Model: NISSAN TEANA 2014Pages: 4801, PDF Size: 51.2 MB
Page 1078 of 4801
![NISSAN TEANA 2014  Service Manual 
EC-78
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
Freeze Frame Data and 1st Trip Freeze Frame Data
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
NOTE:  NISSAN TEANA 2014  Service Manual 
EC-78
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
Freeze Frame Data and 1st Trip Freeze Frame Data
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
NOTE:](/img/5/57390/w960_57390-1077.png)
EC-78
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
Freeze Frame Data and 1st Trip Freeze Frame Data
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
NOTE: 
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica- ble to this vehicle, refer to CONSULT display items.
• For reference values of the following items, refer to  EC-88, "Reference Value"
.
Monitored Item
Freeze frame data item* Description
DIAG TROUBLE CODE 
[PXXXX] • The engine control compon
ent part/control system has a trouble code that is displayed as PXXXX. (Re-
fer to  EC-105, "DTC Index"
.)
FUEL SYS-B1 • “Fuel injection system status” at the moment a malfunction is detected is displayed.
- One of the following mode is displayed. 
- Mode2: Open loop due to detected system malfunction 
- Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
- Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control 
- Mode5: Open loop - has not yet satisfied condition to go to closed loop
CAL/LD VALUE [%] • The calculated load value at the moment a malfunction is detected is displayed. 
COOLANT TEMP 
[ ° C] or [ °F] • The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%] • “Long-term fuel trim” at the moment a malfunction is detected is displayed.
• The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule  than short-term fuel trim.
S-FUEL TRM-B1 [%] • “Short-term fuel trim” at the moment a malfunction is detected is displayed.
• The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel  schedule.
ENGINE SPEED [rpm] • The engine  speed at the moment a malfunction is detected is displayed.
VEHICL SPEED 
[km/h] or [mph] • The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH·P/S [%] • The throttle valve o pening angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL [msec] • The base fuel schedule at the moment a malfunction is detected is displayed. 
INT/A TEMP SE 
[ ° C] or [ °F] • The intake air temperature at the moment a malfunction is detected is displayed.
FUEL SYS-B2
• There items are displayed but are not applicable to this model.
L-FUEL TRM-B2 [%] 
S-FUEL TRM-B2 [%]
INT MANI PRES [kPa] 
COMBUST CONDITION
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DIAGNOSIS SYSTEM (ECM)EC-79
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OMonitored item Unit Monitor Item 
Selection
Description Remarks
ECU 
IN-
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SIG-
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SIG-NAL
S
ENG NISSAN TEANA 2014  Service Manual 
DIAGNOSIS SYSTEM (ECM)EC-79
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OMonitored item Unit Monitor Item 
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Description Remarks
ECU 
IN-
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SIG-
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SIG-NAL
S
ENG](/img/5/57390/w960_57390-1078.png)
DIAGNOSIS SYSTEM (ECM)EC-79
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OMonitored item Unit Monitor Item 
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Description Remarks
ECU 
IN-
PUT 
SIG-
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SIG-NAL
S
ENG SPEED rpm ×ו Indicates the engine speed computed 
from the signal of the crankshaft position  
sensor (POS) and camshaft position sen- 
sor (PHASE). • Accuracy becomes poor if en-
gine speed drops below the  
idle rpm.
• If the signal is interrupted while 
the engine is running, an ab-
normal value may be indicat- 
ed.
MAS A/F SE-B1 V ×ו The signal voltage of the mass air flow 
sensor is displayed. • When the engine is stopped, a 
certain value is indicated.
• When engine is running, spec- ification range is indicated in  
“SPEC”.
B/FUEL SCHDL ms ×ו “Base fuel schedule” indicates the fuel in-
jection pulse width programmed into  
ECM, prior to any learned on board cor- 
rection. • When engine is running, spec-
ification range is indicated in 
“SPEC”.
A/F ALPHA-B1 % • The mean value of the air-fuel ratio feed-
back correction factor per cycle is indicat-
ed. • When the engine is stopped, a 
certain value is indicated.
• When engine is running, spec-
ification range is indicated in 
“SPEC”.
• This data also includes the 
data for the air-fuel ratio learn-
ing control.
COOLAN TEMP/S °C or  °F ×× • The engine coolant temperature (deter-
mined by the signal voltage of the engine 
coolant temperature sensor) is dis-
played. • When the engine coolant tem-
perature sensor is open or 
short-circuited, ECM enters 
fail-safe mode. The engine  
coolant temperature deter- 
mined by the ECM is dis-
played.
A/F SEN1 (B1) V ×ו The A/F signal computed from the input 
signal of the air fuel ratio (A/F) sensor 1  
is displayed.
HO2S2 (B1) V ×ו The signal voltage of the heated oxygen 
sensor 2 is displayed.
HO2S2 MNTR(B1) RICH/LEAN ו Display of heated oxygen sensor 2 sig-
nal.
- RICH: means the amount of oxygen after 
three way catalyst is relatively small.
- LEAN: means the amount of oxygen after  three way catalyst is relatively large. • When the engine is stopped, a 
certain value is indicated.
VHCL SPEED SE km/h or mph ×ו The vehicle speed computed from the 
vehicle speed signal sent from combina- 
tion meter is displayed.
BATTERY VOLT V • The power supply voltage of ECM is dis-
played.
ACCEL SEN 1
V• The accelerator pedal position sensor 
signal voltage is displayed. • ACCEL SEN 2 signal is con-
verted by ECM internally. 
Thus, it differs from ECM ter- 
minal voltage signal.
ACCEL SEN 2
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EC-80
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
TP SEN 1-B1
V××
• The throttle position sensor signal volt-age is displayed. • TP SEN 2-B1 signal is convert-
ed by ECM internally. T NISSAN TEANA 2014  Service Manual 
EC-80
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
TP SEN 1-B1
V××
• The throttle position sensor signal volt-age is displayed. • TP SEN 2-B1 signal is convert-
ed by ECM internally. T](/img/5/57390/w960_57390-1079.png)
EC-80
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
TP SEN 1-B1
V××
• The throttle position sensor signal volt-age is displayed. • TP SEN 2-B1 signal is convert-
ed by ECM internally. Thus, it  
differs from ECM terminal volt- 
age signal.
TP SEN 2-B1
××
FUEL T/TMP SE °C or  °F • The fuel temperature (determined by the 
signal voltage of the fuel tank tempera- 
ture sensor)  is displayed.
EVAP SYS PRES V • The signal voltage of EVAP control sys-
tem pressure sensor is displayed.
FUEL LEVEL SE V ו The signal voltage of the fuel level sensor 
is displayed.
START SIGNAL On/Off • Indicates start signal status [ON/OFF] 
computed by the ECM according to the  
signals of engine speed and battery volt-
age. • After starting the engine, [OFF] 
is displayed regardless of the  
starter signal.
CLSD THL POS On/Off ×ו Indicates idle position [ON/OFF] comput-
ed by ECM according to the accelerator  
pedal position sensor signal.
AIR COND SIG On/Off ×ו Indicates [ON/OFF] condition of the air 
conditioner switch as determined by the  
air conditioner signal.
PW/ST SIGNAL On/Off ×ו [ON/OFF] condition of the power steering 
system (determined by the signal sent  
from EPS control unit) is indicated.
LOAD SIGNAL On/Off ×ו Indicates [ON/OFF] condition from the 
electrical load signal.
- On: Rear window defogger switch is ON  and/or lighting switch is in 2nd position.
- Off: Both rear window defogger switch 
and lighting switch are OFF.
IGNITION SW On/Off ×ו Indicates [ON/OFF] condition from igni-
tion switch signal.
HEATER FAN SW On/Off ו Indicates [ON/OFF] condition from the 
heater fan switch signal.
BRAKE SW On/Off • Indicates [ON/OFF] condition from the 
stop lamp switch signal.
INJ PULSE-B1 msec • Indicates the actual fuel injection pulse 
width compensated by ECM according to 
the input signals. • When the engine is stopped, a 
certain computed value is indi-
cated.
IGN TIMING BTDC ו Indicates the ignition timing computed by 
ECM according to the input signals. • When the engine is stopped, a 
certain value is indicated.
CAL/LD VALUE % • “Calculated load value” indicates the val-
ue of the current air flow divided by peak 
air flow.
MASS AIRFLOW g/s • Indicates the mass air flow computed by 
ECM according to the signal voltage of 
the mass air flow sensor.
Monitored item Unit
Monitor Item 
Selection
Description Remarks
ECU 
IN-
PUT 
SIG-
NALS MAIN 
SIG-
NAL S
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DIAGNOSIS SYSTEM (ECM)EC-81
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PURG VOL C/V %
• Indicates the EVAP canister purge vol-
ume control solenoid valve control value  
compu NISSAN TEANA 2014  Service Manual 
DIAGNOSIS SYSTEM (ECM)EC-81
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PURG VOL C/V %
• Indicates the EVAP canister purge vol-
ume control solenoid valve control value  
compu](/img/5/57390/w960_57390-1080.png)
DIAGNOSIS SYSTEM (ECM)EC-81
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PURG VOL C/V %
• Indicates the EVAP canister purge vol-
ume control solenoid valve control value  
computed by the ECM according to the  
input signals.
• The opening becomes larger as the val- ue increases.
INT/V TIM(B1) °CA • Indicates [
°CA] of intake camshaft ad-
vance angle. 
EXH/V TIM B1 °CA • Indicates [
°CA] of exhaust camshaft ad-
vance angle. 
INT/V SOL(B1) %• The control value of the intake valve tim-
ing control solenoid valve (determined by 
ECM according to the input signals) is in-
dicated.
• The advance angle becomes larger as 
the value increases.
SWRL CONT S/V On/Off • The control condition of the intake mani-
fold runner control valve (determined by  
ECM according to the input signals) is in- 
dicated.
- On: Closed 
- Off: Open
VIAS S/V-1 On/Off • The control condition of the intake mani-
fold tuning valve (determined by ECM ac- 
cording to the input signals) is indicated.
- On: Closed
- Off: Open
AIR COND RLY On/Off • The air conditioner relay control condi-
tion (determined by ECM according to  
the input signals) is indicated.
FUEL PUMP RLY On/Off • Indicates the fuel pump relay control con-
dition determined by ECM according to  
the input signals.
VENT CONT/V On/Off • The control condition of the EVAP canis-
ter vent control valve (determined by  
ECM according to the input signals) is in- 
dicated.
- On: Closed 
- Off: Open
THRTL RELAY On/Off • Indicates the throttle
 control motor relay 
control condition determined by the ECM  
according to the input signals.
COOLING FAN Hi/Mid/Low/Off • Indicates the condition of the cooling fan 
(determined by ECM according to the in-
put signals).
- Hi: High speed operation 
- Mid: Middle speed operation 
- Low: Low speed operation
- Off: Stop
HO2S2 HTR (B1) On/Off • Indicates [ON/OFF] condition of heated 
oxygen sensor 2 heater determined by 
ECM according to the input signals.
Monitored item Unit
Monitor Item 
Selection
Description Remarks
ECU 
IN-
PUT 
SIG-
NALS MAIN 
SIG-
NAL S
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EC-82
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
ALT DUTY SIG On/Off• The control condition of the power gener-
ation voltage variable control (deter- 
mined by ECM according to the inpu NISSAN TEANA 2014  Service Manual 
EC-82
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
ALT DUTY SIG On/Off• The control condition of the power gener-
ation voltage variable control (deter- 
mined by ECM according to the inpu](/img/5/57390/w960_57390-1081.png)
EC-82
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
ALT DUTY SIG On/Off• The control condition of the power gener-
ation voltage variable control (deter- 
mined by ECM according to the input  
signals) is indicated.
- On: Power generation voltage variable  control is active.
- Off: Power generation voltage variable  control is inactive.
I/P PULLY SPD rpm • Indicates the engine speed computed 
from the input speed sensor signal.
VEHICLE SPEED km/h or mph • The vehicle speed computed from the 
vehicle speed signal sent from TCM is 
displayed.
IDL A/V LEARN YET/CMPLT • Displays the condition of Idle Air Volume 
Learning
- YET: Idle air volume learning has not  been performed yet.
- CMPLT: Idle air volume learning has al-
ready been performed successfully.
TRVL AFTER MIL km or mile • Distance traveled while MIL is activated. 
ENG OIL TEMP °C or  °F • The engine oil temperature (determined 
by the signal voltage of the engine oil  
temperature sensor) is displayed.
A/F S1 HTR(B1) % • Air fuel ratio (A/F) sensor 1 heater control 
value computed by ECM according to the  
input signals.
• The current flow to the heater becomes 
larger as the value increases.
VHCL SPEED SE km/h or mph • The vehicle speed computed from the 
vehicle speed signal sent from combina- 
tion meter is displayed.
SET VHCL SPD km/h or mph • The preset vehicle speed is displayed. 
MAIN SW On/Off • Indicates [ON/OFF] condition from MAIN 
switch signal.
CANCEL SW On/Off • Indicates [ON/OFF] condition from CAN-
CEL switch signal.
RESUME/ACC SW On/Off • Indicates [ON/OFF] condition from RE-
SUME/ACCELERATE switch signal.
SET SW On/Off • Indicates [ON/OFF] condition from SET/
COAST switch signal.
BRAKE SW1 On/Off • Indicates [ON/OFF] condition from brake 
pedal position switch signal.
BRAKE SW2 On/Off • Indicates [ON/OFF] condition of stop 
lamp switch signal.
VHCL SPD 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 compared with the ASCD set  
speed, and ASCD operation is cut off.
Monitored item Unit
Monitor Item 
Selection
Description Remarks
ECU 
IN-
PUT 
SIG-
NALS MAIN 
SIG-
NAL S
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DIAGNOSIS SYSTEM (ECM)EC-83
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LO SPEED CUT Non/Cut
• Indicates the vehicle cruise condition. 
- Non: Vehicle speed is maintained at th NISSAN TEANA 2014  Service Manual 
DIAGNOSIS SYSTEM (ECM)EC-83
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LO SPEED CUT Non/Cut
• Indicates the vehicle cruise condition. 
- Non: Vehicle speed is maintained at th](/img/5/57390/w960_57390-1082.png)
DIAGNOSIS SYSTEM (ECM)EC-83
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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
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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 disp NISSAN TEANA 2014  Service Manual 
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 disp](/img/5/57390/w960_57390-1083.png)
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
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DIAGNOSIS SYSTEM (ECM)EC-85
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WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
ACTIVE TEST  NISSAN TEANA 2014  Service Manual 
DIAGNOSIS SYSTEM (ECM)EC-85
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WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
ACTIVE TEST](/img/5/57390/w960_57390-1084.png)
DIAGNOSIS SYSTEM (ECM)EC-85
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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.
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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 ( NISSAN TEANA 2014  Service Manual 
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 (](/img/5/57390/w960_57390-1087.png)
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 
Page 1092 of 4801
![NISSAN TEANA 2014  Service Manual 
EC-92
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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 termi NISSAN TEANA 2014  Service Manual 
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 termi](/img/5/57390/w960_57390-1091.png)
EC-92
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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