P1399: Wheel Speed Sensor 2 – G – Sensor Circuit Intermittent

Possible Causes

  • Faulty sensor or actuator related to the system
  • Wiring or connector issues in the circuit
  • Low fluid levels or contamination
  • Mechanical issues in the affected system
  • Faulty control module

Diagnosis and Repair

  • Confirm the code with an OBD-II scanner and check related codes
  • Inspect wiring and connectors for damage or loose connections
  • Check fluid levels and condition; replace if necessary
  • Test the sensor or actuator with a multimeter or scan tool
  • Replace faulty components as needed
  • Clear codes and test drive to verify repair

Related Error Codes

See also: P1300, P1305, P1310, P1315, P1320

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