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DTC Detection Logic

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P3157 SENSOR POWER SUPPLY (Sensor power supply circuit short) When HPCM detects sensor power supply voltage is 5.6 V or more/4.6 V or less for 0.05 second.
  • Harness or connectors (APP sensor circuit is shorted.) (Clutch 1 stroke sensor circuit is shorted.)
  • APP sensor 1, 2
  • Clutch 1 stroke sensor