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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1220: Fuel Pump Control Module (FPCM) >> Component Inspection >> Fuel Pump Control Module
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Fuel Pump Control Module

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Check voltage between FPCM terminal 4 and ground under the following conditions.
    Fig 1: Testing Conditions
    G00761088Courtesy of NISSAN MOTOR CO., U.S.A.
  4. If NG, replace fuel pump control module.
    Fig 2: Checking Voltage Between FPCM Terminal 4 & Ground
    G00761089Courtesy of NISSAN MOTOR CO., U.S.A.