Nissan X-Trail 32. Manual - part 936

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-873

< SYSTEM DESCRIPTION >

[R9M]

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

Diagnosis Description

INFOID:0000000010935585

DESCRIPTION

This system uses two malfunction indicator lamps. When detecting a system error, ECM turns ON the mal-
function indicator lamp to alert the driver of the presence of malfunction.

MALFUNCTION INDICATOR LAMP (MIL) (YELLOW)

ECM turns ON MIL (yellow) when an emission-related malfunction occurs or when a component part specified
by European laws and regulations becomes inoperable three trips in a raw.

MALFUNCTION INDICATOR LAMP (MIL) (RED)

ECM may turn ON MIL (red) when a malfunction occurs in the engine.

EC-874

< SYSTEM DESCRIPTION >

[R9M]

DIAGNOSIS SYSTEM (ECM)

DIAGNOSIS SYSTEM (ECM)

CONSULT Function

INFOID:0000000010935586

FUNCTION

*: The following emission-related diagnostic information is cleared when the ECM memory is erased.

• Diagnostic trouble codes

SELF-DIAGNOSTIC MODE

Self Diagnostic Item

Regarding items detected in “SELF-DIAG RESULTS” mode, refer to — 

EC-908, "DTC Index"

.

Freeze Frame Data and 1st Trip Freeze Frame Data

Diagnostic test mode

Function

Self-diagnostic results

Self-diagnostic results such as DTC can be read and erased quickly.*

Data monitor

Input/Output data in the ECM can be read.

Work support

This mode enables a technician to adjust some devices faster and more accurately by following 
the indications on the CONSULT unit.

Active test

Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also 
shifts some parameters in a specified range.

ECU identification

ECM part number and homologation number can be read.

Configuration

This function is used to store vehicle specifications to ECM after ECM replacement.

Item

*

Unit

Remarks

CONSULT screen terms

Full spell

WATER TEMP

Water temperature

°

C or 

°

F

ENGINE SPEED

Engine speed

rpm

VEHICLE SPEED

Vehicle speed

km/h or mph

ENGINE TORQUE

Engine torque

Nm

COMPUTER SUPPLY VOLT-
AGE

Computer supply voltage

V

RAIL PRES SET

Rail pressure setting

bar

RAIL PRESSURE

Rail pressure

bar

FUEL FLOW S/V CURRENT

Fuel flow solenoid valve current

mA

FLOW RGLTR CRNT REF 
VAL

Additional Information FDEA

mA

RAIL PRESS SEN VOLT

Rail pressure sensor voltage

mV

FUEL FLOW

Fuel flow

mg/cp

ADDITIONAL INFO FDE1

Additional information FDE1

—

ADDITIONAL INFO FDE2

Additional information FDE2

—

ADDITIONAL INFO FD62

Additional information FD62

deg Crs

ADDITIONAL INFO FDE3

Additional information FDE3

deg Crs

ADDITIONAL INFO FD61

Additional information FD61

deg Crs

BOOST PRESSURE

Boost pressure

mbar

BOOST PRESS REF VALUE

Boost pressure reference value

hpa

MEASURE AIR FLOW

Measured air flow

kg/h

TURBOCHARGING SOLE-
NOID VALVE OCR

Turbocharging solenoid valve OCR

%

DIAGNOSIS SYSTEM (ECM)

EC-875

< SYSTEM DESCRIPTION >

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DAMPER VALVE UPSTR 
TEMP

Estimated inlet flap upstream tempera-
ture

°

C or 

°

F

MANIFOLD PRESSURE

Manifold pressure

mbar

INLET AIR TEMPERATURE

Inlet air temperature

°

C or 

°

F

INT AIR TEMP SEN D/STRM 
TC

Intake air temperature sensor down-
stream turbocharger

°

C or 

°

F

EGR POSITION

EGR position

%

EST. AIR FLOW

Estimated air flow

mg/cp

INLET AIR FLOW

Inlet air flow

mg/cp

ATMOSPHERIC PRESSURE

Atmospheric pressure

mbar

TBN UPSTR PRS SEN VOLT

Turbine upstream pressure sensor volt-
age

mV

ROUGH TC PRESS

Rough turbocharging pressure

mbar

AIR INLET/F REL POS

Air inlet flap relative position

%

AIR INLET TEMP SEN VOLT

Air inlet temperature sensor voltage

mV

FUEL TEMPERATURE

Fuel temperature

°

C or 

°

F

IN FLAP ABSO POSI

Air inlet flap absolute position

%

INLET/F SEN SUPPLY VOLT

Inlet flap sensor supply voltage

mV

DAMPER VALVE SEN VOLT

Damper valve sensor voltage

mV

DMPR VLV SET POS

Damper valve setpoint position

%

IN/FLAP CTRL

Inlet flap control

%

SEN 1 FEED V

Sensors No. 1 feed voltage

mV

ADDITIONAL INFO FDE7

Additional information FDE7

—

ADDITIONAL INFO FDE8

Additional information FDE8

mV

ADDITIONAL INFO FD47

Additional information FD47

mV

OXYGEN RATE

Oxygen rate

—

ADDITIONAL INFORMA-
TION FDE5

Additional information FDE5

—

ADDITIONAL INFO FD9C 

Additional information FD9C

°

C or 

°

F

ADDITIONAL INFO FDF0

Additional information FDF0

hPa

ADDITIONAL INFO FD9D

Additional information FD9D

—

ADDITIONAL INFO FDE6

Additional information FDE6

hPa

ALTERNATOR LOAD

Alternator load

%

AIR REG CUT-OFF CNDIT-
NS

—

—

ADDITIONAL INFO 2069

Additional information 2069

Nm

SEN 2 FEED V

Sensors No. 2 feed voltage

mV

PL PTNMR T2 V

Pedal potentiometer track 2 voltage

mV

PL PTNMR T1 V

Pedal potentiometer track 1 voltage

mV

FUEL PRESSURE (RAW 
VALUE)

Fuel pressure (raw value)

bar

FUEL PUMP ACTUATOR 
PWM

Fuel pump actuator pulse width modula-
tion

%

HEATER PLUG CONTROL

Heater plug control

%

EGR VALVE OPENING REF-
ERENCE

EGR valve opening reference

%

Item

*

Unit

Remarks

CONSULT screen terms

Full spell

EC-876

< SYSTEM DESCRIPTION >

[R9M]

DIAGNOSIS SYSTEM (ECM)

EGR VALVE CONTROL

EGR valve control

%

LAST EGR VALVE OFFSET

Last EGR valve offset

%

EGR VALVE FIRST OFFSET

EGR valve first offset

%

POTN VAL EGR VALVE 
CLSD

Potentiometer value EGR valve closed

%

EGR SEN SUPPLY VOLT

—

mV

EGR POTENTIOMETER 
VOLTAGE

EGR potentiometer voltage

mV

EXHAUST SYSTEM FLOW

Exhaust system flow

g/s

ADDITIONAL INFORMA-
TION 24F3

Additional information 24F3

°

C or 

°

F

TEMP. UPSTREAM OF PF

Temperature upstream of particle filter

°

C or 

°

F

PRS UPSTR OF TBN

Pressure upstream of turbine

mbar

RFRG TEMP PRESS SEN 
VOLT

Refrigerant temperature pressure sen-
sor voltage

V

REFRIGERANT PRESSURE

Refrigerant pressure

bar

TBN UPSTR TEMP SETP

Turbine upstream temperature setpoint

°

C or 

°

F

TEMP UPSTREAM TUR-
BINE

Temperature upstream of turbine

°

C or 

°

F

TBN UPSTR TMP SEN VOLT

Turbine upstream temperature sensor 
voltage

V

RV/LV BUTTON VOLTAGE

RV/LV button voltage

mV

ENGINE OIL TEMP SENSOR

Engine oil temperature sensor

—

ADDITIONAL INFO FDEB

Additional information FDEB

—

ADDITIONAL INFO FDEC

Additional information FDEC

—

ADDITIONAL INFO FDED

Additional information FDED

—

ADDITIONAL INFO FDEE

Additional information FDEE

—

ADDITIONAL INFO FDEF

Additional information FDEF

—

LAST OFF/V CLOSE

Last offset damper valve closed

%

LAST OFF/V OPEN

Last offset damper valve open

%

SEN SUPPLY N-3 VOL

Sensor supply No. 3 voltage

mV

INT/M RUN VLV OPEN AN-
GLE

Intake manifold runner valve opening 
angle

%

INT/M RUNNER VLV SET-
POINT

Intake manifold runner valve setpoint

%

INT/MANI RUNNER VALVE 
REQ

Intake manifold runner valve request

%

IN/M RUN/V LEARN VAL 
(LAST)

Intake manifold runner valve learning 
value (last)

%

IN/M RUN/V LEARN 
VAL(CRNT)

Intake manifold runner valve learning 
value (current)

%

IN/M RUN/V LEARN VAL 
(1ST)

Intake manifold runner valve learning 
value (first)

%

INT/MANI RUNNER VALVE 
POS

Intake manifold runner valve position

%

SWIRL FLAP VOLTAGE

Swirl flap voltage

mV

ADDITIONAL INFO FD2D

Additional information FD2D

—

Item

*

Unit

Remarks

CONSULT screen terms

Full spell