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Home >> Nissan-Datsun >> 2012 >> Leaf SL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> EV Control System >> DTC/Circuit Diagnosis >> DTC P0AA0: System Main Relay >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC P0AA0 is displayed with DTC P0AA2, P0AA5, P31D4, P31DB, P31DC, or P31DD, perform diagnosis for DTC P0AA2, P0AA5, P31D4, P31DB, P31DC, or P31DD.
DTC Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0AA0 HYBRID BATT POSITIVE CONTACTOR
(System main relay circuit stuck closed)
  • A traction motor inverter input voltage is 240 V or more for 9 seconds or more while starting the EV system.
  • A traction motor inverter input voltage is 190 V or more for 1 minute or more while starting the EV system.
  • Harness or connectors
  • Battery J/B
  • Traction motor inverter
  • VCM
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