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Home >> Lexus >> 2022 >> LS 500h AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Advanced Park) - Diagnostic Codes (1 Of 3) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Advanced Park) >> DTC C1247: Stroke Sensor; DTC C1392: Zero Point Calibration of Stroke Sensor undone [10/2020 - 10/2023] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

HINT: 

SAE code only.

C0562

Following conditions is met 0.2 seconds or more
Brake pedal stroke sensor assembly power supply voltage 4.67 V or less, or 5.41 V or more
C124B

One of the following conditions is met -
Brake pedal stroke sensor 1 data invalid element Invalid
Brake pedal stroke sensor 2 data invalid element Invalid
Brake pedal stroke sensor assembly data Invalid
C1392

Brake pedal stroke sensor zero point calibration value Not stored
P057C AND P05DD

Both of the following conditions are met 0.2 seconds or more
Brake pedal position sensor power supply voltage Higher than 4.67 V, and less than 5.41 V
Power supply voltage ratio of SKS and VCSK Less than 0.062

HINT: 

The power supply voltage ratio is the ratio of the voltage of SKS and VCSK.

P057D AND P05DE

Both of the following conditions are met 0.2 seconds or more
Brake pedal position sensor power supply voltage Higher than 4.67 V, and less than 5.41 V
Power supply voltage ratio of SKS and VCSK Higher than 0.904

HINT: 

The power supply voltage ratio is the ratio of the voltage of SKS and VCSK.

P057E AND P05DF

Both of the following conditions are met 0.2 seconds or more
Brake pedal position sensor power supply voltage Higher than 4.67 V, and less than 5.41 V
Difference between the current power supply voltage ratio and the previous power supply voltage ratio of SKS and VCSK Higher than 0.0848

HINT: 

The power supply voltage ratio is the ratio of the voltage of SKS and VCSK.

P05E0

Brake pedal stroke sensor assembly correlation state Invalid