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P1817 – Transmission 4WD Clutch Fault

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Symptoms

  • 4WD not engaging
  • Grinding noise

Causes

  • Clutch wear
  • Wiring issue
  • Actuator fault

Diagnosis

  • Inspect clutch
  • Check wiring
  • Test actuator

Repair

  • Replace clutch
  • Repair wiring
  • Replace actuator
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