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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System >> DTC P1220: Fuel Pump Control Module (FPCM) >> Component Inspection >> Fuel Pump Control Module
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Fuel Pump Control Module

Fig 1: Identifying Fuel Pump Control
G00796394Courtesy of NISSAN MOTOR CO., U.S.A.
  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 2: Inspecting Conditions Chart
    G00796395Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Checking Voltage Between Terminal 4 & Ground
    G00796396Courtesy of NISSAN MOTOR CO., U.S.A.
  4. If NG, replace fuel pump control module.