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Home >> Nissan-Datsun >> 2008 >> Sentra Base, Automatic CVT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0506 To P2A00 (MR20DE) >> DTC P1805 Brake Switch >> On Board Diagnosis Logic >> Fail-Safe Mode

Fail-Safe Mode

When the malfunction is detected, the ECM enters in fail-safe mode.

FAIL-SAFE MODE

Engine operation condition in fail-fail safe mode
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range. Therefore, acceleration will be poor.
Vehicle condition Driving condition
Engine: Idling Normal
Accelerating Poor acceleration
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