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Home >> Hummer >> 2006 >> H3 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.5L - DTC P0013 To DTC P0171 >> DTC P0121 >> DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0121 Throttle Position (TP) Sensor 1 Performance