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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Electronically Controlled Brake System (HV) - Diagnostic Codes (07 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1256-09: Accumulator Low Pressure Abnormality Component Failure [11/2023 - ] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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CASE 1-1

Brake booster pressure increase when brake booster motor is operating Less than 0.25 MPa (2.5 kgf/cm2 , 36 psi)
CASE 1-2

Brake booster pressure after ECU power on Less than 6 MPa (61.2 kgf/cm2 , 870 psi)
CASE 1-3

Brake booster pressure Less than 14 MPa (142.8 kgf/cm2 , 2031 psi)