P0231 on Volvo: How to Diagnose & Fix
Fuel Pump Secondary Circuit - Low
3 Volvo models · 3 documented issues · 3 critical · $200-$900 repair
P0231 on Volvo by model: symptoms, diagnosis and fix
Multiple recalls affect 2019-2020 XC90: (1) Automatic Emergency Braking (AEB) may not function properly, (2) Fuel pump may fail causing stalling. Both are safety recalls with free repairs at Volvo dealers.
Common Symptoms
- Recall notice received
- AEB warning light
- Engine stalling
- No symptoms - hidden defects
How to Fix
Check VIN at NHTSA.gov or Volvo's recall website. Contact any Volvo dealer for free recall repairs. The AEB recall involves a software update. The fuel pump recall involves fuel pump replacement. Do not delay on safety recalls.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Owner tips & cautions
- WarningThis is a high-severity issue - ignoring it can lead to costly repairs or safety concerns. Address it promptly.
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Volvo XC90 forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
- TipCheck NHTSA.gov for active recalls — repairs are performed free at authorized dealers
The fuel pump electronic control module used on this generation can fail from heat, moisture, or internal electronics faults, leading to intermittent no-starts, sudden stalling, or extended cranking. This problem is documented across late-2000s/early-2010s P3 Volvos and appears in owner reports and service literature. Because the module controls pump speed and delivery, failure can mimic a bad in-tank fuel pump.
Common Symptoms
- extended crank before starting
- intermittent no-start
- engine stalls while driving
- loss of power under load
- fuel pressure too low
How to Fix
Confirm fuel pressure loss and scan for fuel pump communication or performance faults before replacing parts. Inspect the module and connectors for corrosion, then replace the fuel pump control module if command and power/ground are present but output is erratic. In some cases, software updates or connector repair are also needed.
Sources for this issue (1)
The fuel pump control module fails, causing the engine to stall, not start, or lose power while driving. Volvo issued a recall for some VINs. The module is located near the fuel tank and is susceptible to corrosion and vibration damage.
Common Symptoms
- Engine stalls while driving
- No-start condition
- Loss of power
- Check engine light
- Extended crank time
How to Fix
Check if the VIN is covered by Volvo recall R10090. The dealer will replace the fuel pump control module. If not under recall, replace the module and inspect wiring connections for corrosion.
Sources for this issue (1)
P0231 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0231 mean on a Volvo?
P0231 stands for "Fuel Pump Secondary Circuit - Low." This code indicates the engine computer detected a low-voltage condition in the fuel pump's secondary (driver/output) control circuit. Many vehicles control the fuel pump through a relay or a dedicated driver module, and the computer monitors the voltage on that circuit to confirm the pump is being powered correctly. When the feedback voltage stays lower than expected, P0231 sets. Because the fuel pump supplies pressurized fuel to the injectors, this fault can cause hard starting, stalling, or no-start conditions. On Volvo it is documented across 3 models: XC90, V70, XC40.
What are the most common causes of P0231?
The most common causes of P0231 are: Faulty fuel pump relay, Corroded or loose connector at the pump or relay, Damaged or shorted wiring in the pump power circuit, Poor ground for the fuel pump circuit, Failing fuel pump drawing abnormal current, Faulty fuel pump driver module, PCM/ECM internal driver fault (rare). The specific cause varies by vehicle.
How much does it cost to fix P0231 on a Volvo?
Published repair estimates on Volvo range from $200 to $900 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0231 on a different make?
View P0231 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.