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Home >> Nissan-Datsun >> 2015 >> Sentra SL >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Introduction) >> System Description >> System >> Engine Control System >> FAILSAFE >> DTC Related Item Description
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DTC Related Item 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.
Device fix mode
  • This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the reference position.
  • The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).
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