P1230 – Fuel Pump Relay (Nissan)

Description

The ECM detected a malfunction in the fuel pump relay.

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Symptoms

  • No start
  • Long crank
  • Stalling

Causes

  • Faulty relay
  • Wiring issues
  • ECM driver fault

Diagnosis

  • Test relay
  • Inspect wiring
  • Measure pump voltage

Repair

  • Replace relay
  • Repair wiring