Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
8Original wording in English
MERCEDES-BENZ
Check engine light on and FC P146264 stored in engine and fuel pump control units Complaint Check engine light active and FC P146264 Temp. and pressure sensor B4/15 is stored in Engine control unit and Fuel pump control unit. Cause Software parameter in Fuel pump control unit. Remedy Update fuel pump control unit (FSCU) to softw…
FREIGHTLINER, MERCEDES-BENZ
Check engine light on and FC P146264 stored in engine and fuel pump control units
MERCEDES-BENZ, MERCEDES-MAYBACH
IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the Fuel System Control Module (FSCM) software in certain Model Year ("MY")…
MERCEDES-BENZ
Check engine light on and FC P146264 sto- red in engine and fuel pump control units
Check vehicle applicability
69A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Freightliner | SPRINTER 1500 ↗ | 2022 |
| Freightliner | SPRINTER 1500 ↗ | 2021 |
| Freightliner | SPRINTER 1500 ↗ | 2020 |
| Freightliner | SPRINTER 1500 ↗ | 2019 |
| Mercedes-Benz | A 220 ↗ | 2020 |
| Mercedes-Benz | A 220 ↗ | 2019 |
| Mercedes-Benz | AMG A35 ↗ | 2021 |
| Mercedes-Benz | AMG A35 ↗ | 2020 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
A/C pressure sensor circuit voltage high
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.