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Home >> Infiniti >> 2003 >> I35 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0122: Throttle Position Sensor 2 Circuit Low Input Or DTC P0123: Throttle Position Sensor 2 Circuit High Input >> Fail Safe Mode
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Fail Safe Mode

When a malfunction is detected, ECM enters fail safe mode and MIL lights up. The ECM controls electric throttle control actuator in regulating throttle opening for idle position to be within +10 degrees. The ECM regulates opening speed of throttle valve to be slower than normal condition. Acceleration will be poor.

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