Nissan X-Trail 32. Manual - part 729

 

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Nissan X-Trail 32. Manual - part 729

 

 

SYSTEM

EC-45

< SYSTEM DESCRIPTION >

[MR20DD]

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When a DTC is detected, ECM executes a mode (in the Fail-safe mode) applicable to the DTC. The fail-safe
mode has the preset traveling control mode (accelerator angle variation and engine output limit), device fix
mode and combustion control mode.

Fail Safe Pattern

Fail Safe List

×

:Applicable —: Not applicable

Fail safe mode

Vehicle behavior

Traveling con-
trol mode

Accelerator an-
gle variation 
control

ECM controls the accelerator pedal depression speed to make it slower than actual speed. This 
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.

Engine output 
control

ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle 
speed to encourage the driver to repair malfunction.

Device fix mode

• This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the refer-

ence position.

• The intake manifold runner control valve motor is turned OFF (intake manifold runner control 

valve opens).

Combustion 
control mode

Stratified charge 
combustion 
control at start-
ing

No stratified charge combustion at starting (cold start).

Idle speed con-
trol

Stops feedback control of idle speed and controls with specified speed.

Recovery speed 
control at decel-
erating

Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.

Idle neutral con-
trol

Stops idle neutral control.

Ignition timing 
correction con-
trol

Partially controls ignition timing control.

Retardation 
control

Controls ignition timing delay control in the intermediate water temperature range.

Pattern

Fail safe mode

A

Traveling control mode

Accelerator angle variation control

B

Engine output control

C

Device fix mode

D

Combustion control mode

Stratified charge combustion control at starting

E

• Idle speed control
• Recovery speed control at decelerating
• Idle neutral control

F

• Ignition timing correction control
• Retardation control

DTC No.

Detected items

Vehicle behavior

Pattern

Others

A

B

C

D

E

F

P0011

Intake valve timing control

×

P0014

Exhaust valve timing control

×

P0075

Intake valve timing control sole-
noid valve

×

P0078

Exhaust valve timing control so-
lenoid valve

×

EC-46

< SYSTEM DESCRIPTION >

[MR20DD]

SYSTEM

P0087
P0088
P0090

FRP control system

×

×

P0102
P0103

Mass air flow sensor circuit

×

×

×

×

×

×

P0117
P0118

Engine coolant temperature 
sensor circuit

×

×

Engine speed will not rise more than 
1,800rpm due to the fuel cut.

P0122
P0123
P0222
P0223
P2135

Throttle position sensor

The ECM controls the electric throttle con-
trol actuator in regulating the throttle open-
ing 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 nor-
mal condition. So, the acceleration will be 
poor. 
NOTE:
If throttle position sensor 1 and 2 malfunc-
tion at the same time conducts following 
control.
• ECM stops the electric throttle control ac-

tuator control, throttle valve is maintained 
at a fixed opening (approx. 5 degrees) by 
the return spring.

P0171
P0172

Fuel injection system

×

×

×

P0190

FRP sensor

×

×

×

P0197
P0198

Engine oil temperature sensor

Intake and exhaust valve timing control 
does not function.

P0201
P0202
P0203
P0204

Injector

×

×

P0300

Misfire

×

×

×

P0335

Crankshaft position sensor

×

P0340

Camshaft position sensor

×

P0365

Exhaust valve timing control po-
sition sensor

×

P0500

Vehicle speed sensor

×

×

×

P0524

Engine oil pressure

• ECM illuminates engine oil pressure 

warning lamp on the combination meter.

• Engine speed will not rise more than 

4,000rpm due to the fuel cut.

• Fail-safe is canceled when ignition switch 

OFF 

 ON.

P0603
P0607

ECM

×

×

P0604
P0605
P0606

(Computing part of ECM does not operate 
normally.)
ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.

P062B

×

×

NOTE:
Fail-safe mode may not start depending on 
malfunction type of ECM.

DTC No.

Detected items

Vehicle behavior

Pattern

Others

A

B

C

D

E

F

SYSTEM

EC-47

< SYSTEM DESCRIPTION >

[MR20DD]

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P0643

Sensor power supply

ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.

P1197

Out  of  gas

Engine  torque  is  limited.

P1217

Engine  over  temperature

Engine speed will not rise more than 
1,800rpm due to the fuel cut.

P1805

Brake switch

ECM controls the electric throttle control ac-
tuator 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

P2008

Intake manifold runner control 
valve

×

×

×

×

×

×

P2100
P2103

Throttle control motor relay

ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.

P2101

Electric throttle control function

ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.

P2118

Throttle control motor

ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.

P2119

Electric throttle control actuator

×

×

ECM stops the electric throttle control actu-
ator control, throttle valve is maintained at a 
fixed opening (approx. 5 degrees) by the re-
turn spring.
NOTE:
For pattern A and B refer to A and B of 
P2119 DTC detection logic. (Refer to 

EC-

369, "DTC Description"

.)

For C of P2119 DTC detection logic ECM 
behaves as above.

P2122
P2123
P2127
P2128
P2138

Accelerator pedal position sen-
sor

The ECM controls the electric throttle con-
trol actuator in regulating the throttle open-
ing 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 nor-
mal condition. Therefore, the acceleration 
will be poor. 
NOTE:
If accelerator pedal position sensor 1 and 2 
malfunction at the same time conducts fol-
lowing control.
• ECM stops the electric throttle control ac-

tuator control, throttle valve is maintained 
at a fixed opening (approx. 5 degrees) by 
the return spring.

DTC No.

Detected items

Vehicle behavior

Pattern

Others

A

B

C

D

E

F

EC-48

< SYSTEM DESCRIPTION >

[MR20DD]

SYSTEM

ENGINE CONTROL SYSTEM : Circuit Diagram

INFOID:0000000010775036

JSBIA5318GB

 

 

 

 

 

 

 

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