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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.5 >> Diagnostic Tests >> DTC P1226: Closed Throttle Position (TP) Switch Learning Performance Problem >> Probable Cause
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Probable Cause

Malfunction is detected when closed throttle position learning is not performed successfully, repeatedly. Possible cause is a defective electric throttle control actuator (TP sensor 1 and 2).