2008 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Fuel Pump: Wiring Diagram

For PG, go to POWER SUPPLY, GROUND & CIRCUIT ELEMENTS .

Fig 1: EC-F/PUMP-01 - Wiring Diagram
G04926256Courtesy of NISSAN MOTOR CO., U.S.A.

Specification data are reference values and are measured between each terminal and ground.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
INPUT/OUTPUT VOLTAGE CHART

TERMINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
14 B/O Fuel pump relay [Ignition switch: ON]Β 
  • For 1 second after turning ignition switch ON

[Engine is running]Β 
0 - 1.0V
[Ignition switch: ON]Β 
  • More than 1 second after turning ignition switch ON
BATTERY VOLTAGE (11 - 14V)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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