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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Hybrid Battery System (Li-Ion W/ Pa10) - Diagnostic Codes (1 Of 2)) >> HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10) >> DTC P0A1D-94: Hybrid/EV Powertrain Control Module Unexpected Operation [09/2022 - ] >> Procedure

DTC P0A1D-94: Hybrid/EV Powertrain Control Module Unexpected Operation [09/2022 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU) 
    1. Check the connections of the hybrid vehicle control ECU connector.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [06/2018 - ]

      OK

      The connectors are connected securely and there are no contact problems.

      GTY1103827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result

      Result
      OK
      NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Check the connector connections and contact pressure of the relevant terminals for the battery ECU assembly.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [06/2018 - ]

      OK

      The connector is connected securely and there are no contact problems.

      GTY1105858Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result

      Result
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    CONNECT SECURELY