LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Hybrid Control System - Diagnostic Codes (P0560-P0AA3) (Lithium-Ion)) >> HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY) >> DTC P0A1F-94: Hybrid/EV Battery Energy Control Module Unexpected Operation [08/2020 - ] >> Procedure

DTC P0A1F-94: Hybrid/EV Battery Energy Control Module Unexpected Operation [08/2020 - ]: Procedure

WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT (HYBRID CONTROL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes.
    4. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      P0A1F-94 only is output. A
      DTCs except P0A1F-94 are output. B
    5. Turn the power switch off.

    Result: 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - ] 

    Result: 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 08/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - ]