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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (For Vacuum Brake Booster) - Diagnostic Codes (B1380-U0074) & Symptom Tests >> VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster) >> DTC C1428: Motor Circuit Malfunction [08/2015 - 08/2019] >> Procedure

DTC C1428: Motor Circuit Malfunction [08/2015 - 08/2019]: Procedure

  1. CHECK HARNESS AND CONNECTOR (GND2 TERMINAL) 

    Refer to PROCEDURE - Step 3

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2019] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR