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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Nickel Metal Hydride) - Diagnostic Codes (P0A9B-P0ADD) >> HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY) >> DTC P0AA0-00: Hybrid/EV Battery Positive Contactor Circuit Stuck Closed [04/2018 - 08/2020] >> Description

DTC P0AA0-00: Hybrid/EV Battery Positive Contactor Circuit Stuck Closed [04/2018 - 08/2020]: Description

Refer to the description for DTC P0AE4-11.

Refer to DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0AA0-00 Hybrid/EV Battery Positive Contactor Circuit Stuck Closed Even the system main relay of HV battery positive (+) terminal side is turned off, the inverter voltage (VH) does not drop.
(1 trip detection logic)
  • HV battery junction block assembly
  • Inverter with converter assembly
  • Hybrid vehicle control ECU
  • Wire harness or connector
Does not come on Master Warning Light:
Comes on
RELATED DATA LIST

DTC No. Data List
P0AA0-00
  • Hybrid Battery Voltage
  • VH-Voltage after Boosting
  • VL-Voltage before Boosting