P1233 – Fuel Pump Control Module Short to Power (Nissan)

Description

The ECM detected a short to power in the fuel pump control module circuit.

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Symptoms

  • Rich mixture
  • Poor fuel economy

Causes

  • Shorted wiring
  • Faulty module

Diagnosis

  • Check wiring for shorts
  • Inspect module

Repair

  • Repair wiring
  • Replace module