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Home >> Infiniti >> 2003 >> G35 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1229: Sensor Power Supply Circuit Shorted >> Fail-Safe Mode

Fail-Safe Mode

When malfunction is detected, ECM enters in fail-safe mode and MIL illuminates. ECM stops electric throttle control actuator control, throttle valve is maintained at a fixed opening (about 5 degrees) by return spring.