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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Electronically Controlled Brake System (Diagnostic Codes) (2 Of 4) (Hybrid)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1401: Malfunction in Front Speed Sensor RH Circuit; DTC C1402: Malfunction in Front Speed Sensor LH Circuit [07/2022 - ] >> Description

DTC C1401: Malfunction in Front Speed Sensor RH Circuit; DTC C1402: Malfunction in Front Speed Sensor LH Circuit [07/2022 - ]: Description

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Refer to DTCs C1413 and C1414.

Refer to DTC C1413: Front Speed Sensor RH Circuit Output; DTC C1414: Front Speed Sensor LH Circuit Output [07/2022 - ]

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note
C1401 Malfunction in Front Speed Sensor RH Circuit 501
502
507
  • INF Code: 501
    • At a vehicle speed of 10 km/h (6 mph) or more, output voltage from one of the speed sensors is less than that from the other sensors for 15 seconds or more.
  • INF Code: 502
    • At a vehicle speed of 10 km/h (6 mph) or more, outputs from both front speed sensors are 0 km/h (0 mph) for 15 seconds or more. (except when both rear speed sensors are 0 km/h (0 mph)).
  • INF Code: 507
    • At a vehicle speed of 10 km/h (6 mph) or more, output from one of the speed sensors is 0 km/h (0 mph) for 1 second or more.
  • Front speed sensor RH
  • Speed sensor installed improperly
  • Front speed sensor rotor RH (front axle hub sub-assembly RH)
  • Skid control sensor wire with suspension control RH*
  • Wire harness or connector
Comes on
  • INF Code 501: SAE Code C0507 (Case 1)
  • INF Code 502: SAE Code C140C
  • INF Code 507: SAE Code C0507 (Case 2)
  • ABS DTC
C1402 Malfunction in Front Speed Sensor LH Circuit 511
512
517
  • INF Code: 511
    • At a vehicle speed of 10 km/h (6 mph) or more, output voltage from one of the speed sensors is less than that from the other sensors for 15 seconds or more.
  • INF Code: 512
    • At a vehicle speed of 10 km/h (6 mph) or more, outputs from both front speed sensors are 0 km/h (0 mph) for 15 seconds or more. (except when both rear speed sensors are 0 km/h (0 mph)).
  • INF Code: 517
    • At a vehicle speed of 10 km/h (6 mph) or more, output from one of the speed sensors is 0 km/h (0 mph) for 1 second or more.
  • Front speed sensor LH
  • Speed sensor installed improperly
  • Front speed sensor rotor LH (front axle hub sub-assembly LH)
  • Skid control sensor wire with suspension control LH*
  • Wire harness or connector
Comes on
  • INF Code 511: SAE Code C0501 (Case 1)
  • INF Code 512: SAE Code C140B
  • INF Code 517: SAE Code C0501 (Case 2)
  • ABS DTC
  1. *: w/ AVS