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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (1 Of 2) >> Electronically Controlled Brake System >> DTC C1257-57: Power Supply Drive Circuit [06/2015 - ] >> Procedure

DTC C1257-57: Power Supply Drive Circuit [06/2015 - ]: Procedure

  1. REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 
    1. Replace the skid control ECU (brake booster with master cylinder assembly).

      Refer to REMOVAL [06/2015 - 11/2018] , or refer to REMOVAL [11/2018 - ]

      Result

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    Result: 

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