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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] >> Component Operating Range

Component Operating Range

C0571

Both of the following conditions are met -
Pressure sensor 1 stuck failure detection trigger signal is met for 0.018 seconds or more Off
Power supply voltage ratio of ACC and VCM 0.05 or more

HINT: 

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

C0572

Borh of the following conditions are met -
Pressure sensor 1 stuck failure detection trigger signal is met for 0.018 seconds or more Off
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.

C0574 (CASE 1)

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

Both of the following conditions are met -
Pressure sensor 1 stuck detection trigger signal Off
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 Off
C14D0

Pressure sensor power supply voltage (VCM1) Higher than 4.7 V, and less than 5.3 V