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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (4 Of 4), Circuit Tests, Symptom Tests >> Electronically Controlled Brake System >> DTC P2530-14: Ignition Switch Run Position Circuit Short to Ground or Open [12/2023 - ] >> Procedure

DTC P2530-14: Ignition Switch Run Position Circuit Short to Ground or Open [12/2023 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (IG2 TERMINAL) 
    • Make sure that there is no looseness at the locking part and the connecting part of the connector.

      OK

      The connector is securely connected.

    Pre-procedure1

    • Disconnect the A6 No. 2 skid control ECU (brake actuator assembly) connector.
    • Check both the connector case and the terminals for deformation and corrosion.

      OK

      No deformation or corrosion.

    Pre-procedure2

    • Turn the ignition switch to ON.
    • Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition Result
      A6-15 (IG2) - Body ground Ignition switch ON 11 to 14 V V

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR