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Home >> Nissan-Datsun >> 2021 >> NV200 S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1 Of 2) >> System Description >> System >> Engine Control System >> Fail Safe
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Fail Safe

DTC No.

Detected items

Engine operating condition in fail-safe mode

P0011

P0012

P0016

Intake valve timing control

  • The signal is not energized to the intake valve timing control solenoid valve and the valve control does not function.
  • ECM activates the IVT intermediate lock control solenoid valve to bring the cam sprocket into an intermediate lock condition.

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 temperature 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 engine 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.

So, the acceleration will be poor.

P0500

Vehicle speed sensor

When the fail-safe system for vehicle speed sensor is activated, the cooling fan operates (Highest) while engine is running.

P0524

Engine oil pressure

  • ECM illuminates engine 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.

P052A

P052B

Intake valve timing intermediate lock control

-

P0603

P0607

ECM

Engine torque may be limited.

P0604

ECM

  • ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
  • The position of the following components is fixed.
    • Intake valve timing control solenoid valve
  • ASCD operation may be deactivated.

P0605

P0606

P060B

ECM

NOTE: Fail-safe may not occur depending on malfunction type.
  • ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
  • The position of the following components is fixed.
    • Intake valve timing control solenoid valve
  • ASCD operation may be deactivated.

P060A

ECM

NOTE: Fail-safe may not occur depending on malfunction type.
  • ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
  • The position of the following components is fixed.
    • Intake valve timing control solenoid valve
  • Engine torque may be limited.
  • ASCD operation may be deactivated.

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.

P2100

P2103

Throttle control relay

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

P2101

Electric throttle control function

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

P2118

Throttle control motor

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

P2119

Electric throttle control actuator

(When electric throttle control actuator does not function properly due to the return spring malfunction:)

ECM controls the electric throttle actuator by regulating the throttle opening around the idle position. The engine speed will not rise more than 2, 000 rpm.

(When throttle valve opening angle in fail-safe mode is not in specified range:)

ECM controls the electric throttle control actuator by regulating the throttle opening to 20 degrees or less.

(When ECM detects the throttle valve is stuck open:)

While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the engine stalls.

The engine can restart in N or P position, and engine speed will not exceed 1, 000 rpm or more.

P2122

P2123

P2127

P2128

P2138

Accelerator pedal 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.

So, the acceleration will be poor.