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2001 MAZDA B3000

3.0L V6FWDAUTOMATICgas
Repairs0Labor473Torque2470Fluid6DTC674Battery0Maintenance0Recalls0
P0627high severityPowertrain

Fuel Pump A Control Circuit/Open

on 2001 Mazda B3000 3.0L V6 · FWD

What this code means

Open circuit in fuel pump control circuit.

Symptoms

  • No start
  • No fuel pump prime sound
  • Stalling

Common causes

  • Fuel pump relay failure
  • Wiring open
  • PCM driver failure
  • Inertia switch tripped

Diagnostic steps

  1. Check fuel pump relay
  2. Test wiring
  3. Check inertia switch
  4. Test PCM output

Repair notes

Replace relay or repair wiring.

Other Powertrain codes on this vehicle

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