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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Except HV) - Diagnostic Codes (2 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C137B-A2: Brake System Control Module "A" System Voltage System Voltage Low [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • Before performing troubleshooting, make sure to confirm that the auxiliary battery voltage is normal.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

  • After replacing the skid control ECU (brake actuator assembly), perform "Calibration".

    Refer to UTILITY [11/2023 - ]

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