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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2391 (Engine Control System - DTCS P1550 To P2A03) >> DTC P1805 Brake Switch >> On Board Diagnosis Logic >> Fail-Safe Mode

Fail-Safe Mode

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

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

FAIL-SAFE MODE CHART

Engine operating condition in 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
When engine is idling Normal
When accelerating Poor acceleration