P025A on 2021-2024 Mercedes-Benz E-Class — Fuel Pump Module Control Circuit/Open
1 vehicles · 1 makes · $900-$1,800 repair
Most Reported On
P025A is an OBD-II diagnostic trouble code meaning “Fuel Pump Module Control Circuit/Open.” This code means the engine computer detected an open or abnormal voltage condition in the fuel pump (module 'A') control circuit, indicating a loss of electrical continuity. The computer commands the fuel pump control module to run the pump at the proper rate; if the control circuit is open or the expected feedback is missing, this code sets. It does not necessarily mean the pump itself is bad. It can cause hard starting, no-start, stalling, or reduced engine performance. This code is most commonly reported on 2021-2024 Mercedes-Benz E-Class, with repair costs ranging from $900 to $1,800.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P025A, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P025A mean?
P025A stands for "Fuel Pump Module Control Circuit/Open." This code means the engine computer detected an open or abnormal voltage condition in the fuel pump (module 'A') control circuit, indicating a loss of electrical continuity. The computer commands the fuel pump control module to run the pump at the proper rate; if the control circuit is open or the expected feedback is missing, this code sets. It does not necessarily mean the pump itself is bad. It can cause hard starting, no-start, stalling, or reduced engine performance.
What are the most common causes of P025A?
The most common causes of P025A are: Open or broken wiring in the fuel pump control circuit, Faulty fuel pump (driver) control module, Corroded or loose connector at the pump module, Faulty fuel pump assembly, Blown fuse or relay in the pump circuit, Poor ground connection, Faulty PCM/ECM (rare). The specific cause varies by vehicle.
How much does it cost to fix P025A?
Repair costs for P025A range from $900 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by P025A?
Au7o has documented P025A across 1 vehicle models from 1 manufacturers: Mercedes-Benz.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.