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2015 KIA FORTE
1.8L I4•FWD•AUTOMATIC•gas•G4NB
1 active safety recall on this vehicle — view recalls🏆Sponsored by Simon-Olivier Ricci
Repairs401Labor496Torque3402Fluid7DTC1080Battery1Maintenance0Recalls1
P0231high severityPowertrain

Fuel Pump Secondary Circuit Low

on 2015 Kia Forte 1.8L I4 · FWD

What this code means

Low voltage in the fuel pump secondary (output) circuit.

Symptoms

  • Engine stalling
  • No start
  • Loss of power at high RPM

Common causes

  • Fuel pump failing
  • Corroded connector
  • High resistance wiring
  • Weak battery during cranking

Diagnostic steps

  1. Test voltage at pump connector
  2. Check connector
  3. Measure current draw

Repair notes

Replace fuel pump or repair wiring.

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