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Home >> Infiniti >> 2008 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 To P0153 >> P0122, P0123, P0227, P0228 TP Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P0122, P0123, P0227 or P0228 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC LOGIC ".
DTC DETECTING CONDITION AND POSSIBLE CAUSE REFERENCE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122 Throttle position sensor 2 (bank 1) circuit low input An excessively low voltage from the TP sensor 2 is sent to ECM.
  • Harness or connectors

    (TP sensor 2 circuit is open or shorted.)

  • Electric throttle control actuator (TP sensor 2)
P0123 Throttle position sensor 2 (bank 1) circuit high input An excessively high voltage from the TP sensor 2 is sent to ECM.
P0227 Throttle position sensor 2 (bank 2) circuit low input An excessively low voltage from the TP sensor 2 is sent to ECM.
P0228 Throttle position sensor 2 (bank 2) circuit high input An excessively high voltage from the TP sensor 2 is sent to ECM.
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