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Home >> Infiniti >> 2003 >> QX4 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0122: Throttle Position Sensor Circuit - Low Input Or DTC P0123: Throttle Position Sensor Circuit - High Input >> Fail Safe Mode
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Fail Safe Mode

When malfunction is detected, ECM enters fail safe mode. Throttle position will be determined based on the injected fuel amount and engine speed. When in fail safe mode acceleration will be poor.

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