Back to 1996 Subaru SVX

1996 SUBARU SVX

3.3L H6AWDAUTOMATICgas
Repairs0Labor591Torque6087Fluid9DTC633Battery0Maintenance0Recalls0
P0231high severityPowertrain

Fuel Pump Secondary Circuit Low

on 1996 Subaru SVX 3.3L H6 · AWD

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.

Other Powertrain codes on this vehicle

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