P1286 – Cooling Fan Relay Fault (Nissan)

Description

The ECM detected a malfunction in the cooling fan relay.

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Symptoms

  • Overheating
  • Fan not running

Causes

  • Faulty relay
  • Wiring issue
  • ECM driver fault

Diagnosis

  • Test relay
  • Inspect wiring
  • Scan live data

Repair

  • Replace relay
  • Repair wiring