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Home >> Toyota >> 2020 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 140 (Hybrid Control System (Lithium-Ion Battery) - Diagnostic Codes (3 Of 6)) >> HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY) >> DTC P0ADD-11: Hybrid/EV Battery Negative Contactor Circuit Short to Ground [06/2020 - ] >> Procedure

DTC P0ADD-11: Hybrid/EV Battery Negative Contactor Circuit Short to Ground [06/2020 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BODY GROUND) 
    1. Disconnect the A31 hybrid vehicle control ECU assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY868633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A31-13 (SMRG) - Body ground Ignition switch off 25.0 to 59.0 Ω
    3. Reconnect the A31 hybrid vehicle control ECU assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

    Refer to REMOVAL [10/2019 - 08/2020] , or refer to REMOVAL [08/2020 - 12/2021] , or refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

    Result: 

    NG 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR) 

    Refer to PROCEDURE - Step 5

    Result

    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves.

    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 service information because this may cause a malfunction.

    2. Remove the No. 1 HV battery cover panel RH.

      Refer to PROCEDURE - Step 9 [06/2020 - 08/2020] , or refer to PROCEDURE - Step 9 [08/2020 - 12/2021] , or refer to PROCEDURE - Step 9 [12/2021 - 10/2022] , or refer to PROCEDURE - Step 9 [10/2022 - 10/2023] , or refer to PROCEDURE - Step 9 [10/2023 - ]

    3. Disconnect the M32 HV battery junction block assembly connector.
      GTY975380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the A31 hybrid vehicle control ECU assembly connector.
    5. Measure the resistance according to the value(s) in the table below.
      GTY909020Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Vehicle Control ECU Assembly)
      *b Front view of wire harness connector
      (to HV Battery Junction Block Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A31-13 (SMRG) or M32-4 (SMRG) - Body ground and other terminals Ignition switch off 10 kΩ or higher
    6. Reconnect the A31 hybrid vehicle control ECU assembly connector.
    7. Reconnect the M32 HV battery junction block assembly connector.
    8. Install the No. 1 HV battery cover panel RH.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

    Refer to REMOVAL [06/2020 - 08/2020] , or refer to REMOVAL [08/2020 - 12/2021] , or refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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