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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Control System - 3.5L) >> DTC P1805: Brake Switch >> On Board Diagnosis Logic >> Fail-Safe Mode

Fail-Safe Mode

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

FAIL-SAFE MODE

Engine operating condition in fail-safe mode
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration