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Home >> Toyota >> 2012 >> Highlander Hybrid >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control System (Diagnostic Codes (P0A7A-122 - P0AC0-817) (Hybrid) >> Hybrid Control System >> DTC P0AA1-231: Hybrid Battery Positive Contactor Circuit Stuck Closed >> Description

DTC P0AA1-231: Hybrid Battery Positive Contactor Circuit Stuck Closed: Description

Refer to the description for DTC P0AE6-225. Refer to DTC P0AE6-225: Hybrid Battery Precharge Contactor Control Circuit Low; DTC P0AE7-224: Hybrid Battery Precharge Contactor Control Circuit High .

DTC No. INF Code DTC Detection Condition Trouble Area
P0AA1 231 SMRB on the HV battery positive side is stuck closed.
  • Hybrid battery junction block assembly
  • Inverter with converter assembly