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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1226 CTP LEARNING-B1 (Closed throttle position learning performance) Closed throttle position learning is not performed successfully, repeatedly.
  • Electric throttle control actuator (TP sensor 1 and 2)