Fuel Pump Control System (Altima 2.5L)

For fuel pump control system diagnosis and testing procedure, see Fig 2-Fig 5 . For fuel pump control circuit wiring diagram, see Fig 1. To check condenser, see FUEL SYSTEM CONDENSER . To check fuel pump, see FUEL PUMP . For relay location, see ECM & FUEL PUMP RELAY LOCATIONS  table. If no problem is indicated at this time, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. For component removal and installation procedures, see appropriate REMOVAL & INSTALLATION article.

Fig 1: Fuel Pump Control Circuit Wiring Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Fuel Pump Control System & Component Testing Procedure (Altima 2.5L - 1 Of 4)

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Fuel Pump Control System & Component Testing Procedure (Altima 2.5L - 2 Of 4)

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Fuel Pump Control System & Component Testing Procedure (Altima 2.5L - 3 Of 4)

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Fuel Pump Control System & Component Testing Procedure (Altima 2.5L - 4 Of 4)

Courtesy of NISSAN MOTOR CO., U.S.A.