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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brake Control System (DTCS) >> Laser/Radar (Distance Sensor) >> DTC C1A03-64: Vehicle Speed Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

DTC detection condition

(Trouble diagnosis content)

[Malfunction type]

C1A03

64

VHCK SPEED SE CIRC

(Vehicle speed sensor circuit)

[SIGNAL PLAUSIBILITY ERROR]

[Signal plausibility error]

Diagnosis condition

  • When engine is running
  • When FEB system is ON

Signal (terminal)

--

Threshold

  • If the vehicle speed signal (wheel speed) from ABS actuator and electric unit (control unit) and the output speed sensor signal from TCM, received by the distance sensor via CAN communication, are inconsistent
  • If tire size is not correct

Diagnosis delay time

1 second or less