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Home >> Nissan-Datsun >> 2006 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U1000 To P0157 >> DTC P0122, P0123 TP Sensor >> On Board Diagnosis Logic >> Fail-Safe Mode

Fail-Safe Mode

When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.

ENGINE OPERATING CONDITION IN FAIL-SAFE MODE

Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.
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