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Home >> Lexus >> 2021 >> LS 500h AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/O Advanced Park) - Diagnostic Codes (3 Of 3) & Symptom Tests >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Advanced Park) >> DTC C1464: Front Speed Sensor RH Circuit; DTC C1465: Front Speed Sensor LH Circuit [10/2020 - 10/2023] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

C0501 (CASE 1-1) AND C0507 (CASE 1-1)

One-seventh of the second lowest speed sensor output value Higher than the lowest speed sensor output value
C0501 (CASE 1-2) AND C0507 (CASE 1-2)

Wheel speed sensor excessive pulse Exist
C0501 (CASE 2) AND C0507 (CASE 2)

The lowest speed sensor output value 0 km/h (0 mph)
C0501 (CASE 3) AND C0507 (CASE 3)

Wheel speed sensor signal High frequency pulse Exist
C0502 AND C0508

Wheel speed sensor voltage Less than 0.49 V
C0503 AND C0509

Wheel speed sensor voltage Higher than 3.85 V
C0504 (CASE 2) AND C050A (CASE 2)

Either of the following conditions is met -
Edge of wheel speed sensor outage is met 255 times or more
Edge of wheel speed sensor excessive pulse is met 7 times or more
C140B AND C140C

All of the following conditions are met -
The highest speed sensor output value Abnormal noise judgment (wheel speed more than threshold)
The second lowest speed sensor output value 0 km/h (0 mph)
Speed sensor output value 0 km/h (0 mph)
C14E1 (CASE 1 AND 2) AND C14E4 (CASE 1 AND 2)

Wheel speed sensor power supply voltage Less than 6.2 V