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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Brakes Control Systems >> Brake Control System (DTCS) >> Abs [Abs Actuator And Electric Unit (Control Unit)] >> DTC C1143: Steering Angle Sensor >> DTC Description >> Possible Cause
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Possible Cause

NOTE: Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.

PAST DTC

CRNT DTC

  • Harness or connector
  • ABS actuator and electric unit (control unit) power supply system
  • Fuse
  • Fusible link
  • 12 V battery
  • CAN communication line
  • Incomplete neutral position adjustment of steering angle sensor
  • Improper installation of steering angle sensor
  • Harness or connector
  • Steering angle sensor
  • ABS actuator and electric unit (control unit)
  • IPDM E/R
  • CAN communication line
  • Front wheel alignment
  • Incomplete neutral position adjustment of steering angle sensor
  • ABS actuator and electric unit (control unit) power supply system
  • Fuse
  • Fusible link
  • 12 V battery