LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> G37 IPL, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (EV Control System) >> DTC/Circuit Diagnosis >> DTC P0AA4: System Main Relay - >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Since this DTC may be displayed if a malfunction is detected in other systems, check them for malfunction before performing this diagnosis.
  • If P0AA0 and any of P0AA5, P31D4, P31DB, or P31DD are detected simultaneously, perform diagnosis of P0AA0 and applicable DTC (P0AA5, P31D4, P31DB, or P31DD).
DTC DETECTING CONDITION AND POSSIBLE CAUSES

DTC Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0AA4 HYBRID BATT POSITIVE CONTRACTOR
  • During the stop state from READY or charging state, the voltage of the traction monitor inverter is 100 V or more.
  • The voltage of the traction motor inverter is 100 V or more when only the pre-charge relay is ON.
  • Harness or connectors
  • Li-ion battery J/B
  • Traction motor inverter
  • VCM