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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1087 To P2542 >> DTC P1239, P2135: TP Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P1239 or P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to "DTC LOGIC ".
DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1239 TP SENSOR-B2 [Throttle position sensor (bank 2) circuit range/performance] Rationally incorrect voltage is sent to ECM compared with the signals from TP sensor 1 and TP sensor 2.
  • Harness or connector (Throttle position sensor 1 or 2 circuit is open or shorted.)
  • Electric throttle control actuator (Throttle position sensor 1 or 2)
P2135 TP SENSOR-B1 [Throttle position sensor (bank 1) circuit range/performance]