2020 Kia K900FACTORY OEM SERVICE PROCEDURE

Terminal Function

Pin No. Description Connected to
1 Battery power (B+) Fuel Pump Relay
2 Fuel Pump (U) Low pressure fuel pump
3 Fuel Pump (V) Low pressure fuel pump
4 Fuel Pump (W) Low pressure fuel pump
5 CAN [Low] Other control module
6 CAN [High] Other control module
7 Ground (-) Chassis Ground
8 Fuel Pump shield (Ground) Chassis Ground
9 Fuel pressure sensor (FPS) ground (-) Fuel pressure sensor (FPS)
10 Fuel pressure sensor (FPS) signal input Fuel pressure sensor (FPS)
11 - -
12 Fuel pressure sensor (FPS) power supply [+5V] Fuel pressure sensor (FPS)
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.