Mercedes Sprinter Fault Code List of Common Fault Codes

To effectively troubleshoot issues in your Mercedes Sprinter, understanding the fault codes generated by its onboard diagnostics (OBD) system is crucial. In this comprehensive blog, we present a list of fault codes commonly encountered in Mercedes Sprinter vehicles. By decoding these codes and identifying potential causes, you'll be better equipped to address problems promptly and ensure optimal performance.

Mercedes Sprinter Fault Codes List 

Below is an list of fault codes that you may come across in your Mercedes Sprinter, along with their meanings and possible causes:
P0100 - Mass or Volume Air Flow Circuit Malfunction: Potential causes: Faulty mass air flow (MAF) sensor, air intake leaks, clogged air filter, or wiring issues. P0110 - Intake Air Temperature Circuit Malfunction: Potential causes: Faulty intake air temperature (IAT) sensor, wiring problems, or issues with the engine coolant temperature (ECT) sensor.
P0120 - Throttle/Pedal Position Sensor/Switch 'A' Circuit Malfunction: Potential causes: Faulty throttle position sensor (TPS), pedal position sensor, or wiring/connectivity problems.
P0130 - O2 Sensor Circuit Malfunction (Bank 1, Sensor 1): Potential causes: Faulty oxygen sensor, wiring issues, exhaust system leaks, or engine misfire. P0170 - Fuel Trim Malfunction (Bank 1): Potential causes: Fuel delivery problems, vacuum leaks, faulty oxygen sensor, or issues with the fuel pressure regulator. P0400 - Exhaust Gas Recirculation (EGR) Flow Malfunction: Potential causes: Blocked EGR passage, faulty EGR valve, wiring problems, or malfunctioning EGR control solenoid.
P0420 - Catalyst System Efficiency Below Threshold (Bank 1): Potential causes: Faulty catalytic converter, oxygen sensor malfunction, exhaust leaks, or engine misfire.
P0500 - Vehicle Speed Sensor Malfunction: Potential causes: Faulty speed sensor, damaged wiring, transmission issues, or problems with ABS wheel speed sensors.
P0562 - System Voltage Low: Potential causes: Weak battery, alternator failure, loose electrical connections, or faulty voltage regulator.
P0606 - PCM/ECM Processor Fault: Potential causes: Malfunctioning powertrain control module (PCM) or engine control module (ECM), wiring problems, or software issues.
P0700 - Transmission Control System Malfunction: Potential causes: Transmission-related issues, faulty transmission control module (TCM), wiring problems, or sensor failures.
P1187 - Rail Pressure Monitoring Control Variation: Potential causes: Low fuel pressure, faulty fuel pressure sensor, fuel delivery problems, or issues with the high-pressure fuel pump.
P2006 - Intake Manifold Runner Control Stuck Closed: Potential causes: Malfunctioning intake manifold runner control (IMRC) actuator, stuck closed flaps, wiring issues, or carbon buildup.
P2263 - Turbocharger Boost System Performance: Potential causes: Turbocharger-related problems, faulty wastegate, boost pressure sensor issues, or air intake restrictions. Please note that this list includes common fault codes but does not cover every possible code specific to different Mercedes Sprinter models and years. For accurate diagnosis and resolution, consult your vehicle's service manual or seek professional assistance when encountering unfamiliar fault codes.
Please note that this list includes common fault codes but does not cover every possible code specific to different Mercedes Sprinter models and years. For accurate diagnosis and resolution, consult your vehicle's service manual or seek professional assistance when encountering unfamiliar fault codes.

How to diagnose a Mercedes Sprinter without a fault code list

The complexity and variety of these codes make it impractical to list them all comprehensively.  However, using advanced diagnostic tools like the Jaltest diagnostic tool or other Mercedes Sprinter scan tools equipped with diagnostic software can greatly simplify the process of reading and troubleshooting fault codes.

With tools like the Jaltest Light/Medium vehicle diagnostic tool, you can connect to your Mercedes Sprinter's OBD port and access a wide range of diagnostic functions. These tools have the capability to read fault codes directly from the vehicle's systems, providing detailed information about the specific issues detected. Additionally, they offer comprehensive diagnostic features, real-time data monitoring, and step-by-step guidance for troubleshooting and repairs.

By utilizing the power of diagnostic tools and software designed specifically for Mercedes Sprinter vehicles, you can streamline the fault code diagnosis process, save time, and ensure accurate troubleshooting. These tools are essential for both professional technicians and Mercedes Sprinter owners who want to take a hands-on approach to maintaining and resolving issues in their vehicles.

Remember, while fault codes provide valuable insights, it's important to exercise caution and seek professional assistance or consult the vehicle's service manual when encountering unfamiliar codes or complex issues. Regular maintenance, timely repairs, and the use of reliable diagnostic tools will contribute to the smooth operation and longevity of your Mercedes Sprinter.

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