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P1841 – Transfer Case Shift Motor Temperature Sensor Fault

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Symptoms

  • 4WD not engaging
  • Warning light

Causes

  • Faulty sensor
  • Wiring issue
  • Motor overheating

Diagnosis

  • Read sensor data
  • Inspect wiring
  • Check motor

Repair

  • Replace sensor
  • Repair wiring
  • Service motor
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