Code P0231
Fuel Pump Low Voltage
Plain English Meaning:Fuel pump not getting enough power
Red: Stop Driving & Tow
Vehicle may stop running
P0231 Symptoms
- •Hard start stalling
Most Common Causes of P0231
P0231 Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Check voltage under load
Typical Fix Paths & Estimated Costs
Replace pump or wiring $200–$1000
Parts for P0231 Repair
Common replacement parts for fuel system codes. (Paid links)
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