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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Advanced Park) - Diagnostic Codes (2 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Advanced Park) >> DTC C1365: Accumulator Pressure Sensor [10/2020 - 10/2023] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

C0571

Power supply voltage ratio of ACC and VCM Less than 0.05

HINT: 

The power supply voltage ratio is the ratio of the voltage of ACC and VCM.

C0572

Power supply voltage ratio of ACC and VCM Higher than 0.905

HINT: 

The power supply voltage ratio is the ratio of the voltage of ACC and VCM.

C0574 (CASE 1)

Difference between the current accumulator pressure and the accumulator pressure when braking starts Less than 0.5 MPa (5.1 kgf/cm2 , 73 psi)
C0574 (CASE 2)

Power supply voltage ratio of ACC and VCM 0.905 or less

HINT: 

The power supply voltage ratio is the ratio of the voltage of ACC and VCM.

C121A

Accumulator pressure sensor noise 1 On
C14D0

Pressure sensor power supply voltage (VCM1) 4.7 V or less, or 5.3 V or more