LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2016 >> Juke SL, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Except NISMO RS) (Introduction) >> System Description >> System >> Engine Control System >> Fail-Safe >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Control System: Fail-Safe: Description

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) and device fix mode.

Fail safe mode Vehicle behavior
Traveling control mode Accelerator angle 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.
  • Engine output control 1: Limits the maximum speed to 120 km/h (75 MPH) *
  • Engine output control 2: Limits the maximum speed to 55 km/h (34 MPH) *

* : This value is a reference value converted from engine power to vehicle speed.
Actual power limitation value differs due to the malfunctioning part and driving condition.
Device fix mode
  • This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the reference position.
  • A control signals is not transmitted to EGR volume control valve and the EGR volume control is deactivated.
  • The Intake manifold runner control valve motor is turned OFF (Intake manifold runner control valve opens).
Combustion control mode Stratified charge combustion control at starting No stratified charge combustion at starting (cold start).
Idle speed control Stops feedback control of idle speed and controls with specified speed.
Recovery speed control at decelerating Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.
Idle neutral control Stops idle neutral control.
Ignition timing correction control Partially controls ignition timing control.
Retardation control Controls ignition timing delay control in the intermediate water temperature range.
scientia non olet · About LEMON Manuals