Skip to content Skip to footer
CARDIAGTECH
WhatsApp: +1 (641) 206-8880
CARDIAGTECH
Close
Mercedes Fault Codes

Mercedes Benz Truck Fault Codes List: Your Ultimate Guide

Mercedes-Benz trucks are renowned for their advanced technology and robust performance. To ensure these vehicles operate at their peak, a complex network of onboard computers continuously monitors various systems. When a malfunction occurs, the system generates a fault code, also known as a Diagnostic Trouble Code (DTC). Understanding these codes is crucial for accurate diagnosis and efficient repair. This comprehensive guide, brought to you by CARDIAGTECH.NET, provides an in-depth look at Mercedes Benz truck fault codes, helping you quickly identify and resolve issues. Arm yourself with the knowledge to keep your Mercedes-Benz truck running smoothly and maximize uptime.

1. Understanding Mercedes Benz Truck Fault Codes Fault codes, or Diagnostic Trouble Codes (DTCs), are essential for identifying malfunctions within your Mercedes-Benz truck. These codes are generated by the truck’s onboard computer when it detects a problem, acting as a guide for technicians to pinp...

Contents

1. Understanding Mercedes Benz Truck Fault Codes

Fault codes, or Diagnostic Trouble Codes (DTCs), are essential for identifying malfunctions within your Mercedes-Benz truck. These codes are generated by the truck’s onboard computer when it detects a problem, acting as a guide for technicians to pinpoint the source of the issue. They cover a wide array of systems, including the engine, transmission, braking system, and more. Being able to interpret these codes accurately is the first step in effective truck maintenance and repair. With the right tools and understanding, resolving these issues becomes more efficient and cost-effective.

1.1. What are Fault Codes?

Fault codes are alphanumeric codes generated by a vehicle’s onboard diagnostic system. These codes indicate a specific problem or malfunction detected by the vehicle’s sensors and computers. In Mercedes-Benz trucks, these codes help technicians quickly identify and address issues, ensuring optimal performance and minimizing downtime.

1.2. Why are Fault Codes Important?

Fault codes are critical because they provide valuable insights into the health of your Mercedes-Benz truck. They help in:

  • Accurate Diagnosis: Quickly identify the root cause of a problem.
  • Efficient Repairs: Streamline the repair process, saving time and money.
  • Preventive Maintenance: Detect potential issues before they escalate into major problems.
  • Maintaining Performance: Ensure your truck operates at its optimal level.
  • Reducing Downtime: Get your truck back on the road faster.

By understanding and addressing fault codes promptly, you can maintain the reliability and longevity of your Mercedes-Benz truck.

Read more: 2208 Mercedes Fault Code: Diagnosis, Causes, and Solutions

1.3. Where to Find Fault Codes

To access fault codes on your Mercedes-Benz truck, you will typically need a diagnostic tool that can connect to the vehicle’s On-Board Diagnostics (OBD) port. Here’s a step-by-step guide:

  1. Locate the OBD Port: The OBD port is usually found under the dashboard, near the steering column.
  2. Connect the Diagnostic Tool: Plug the diagnostic tool into the OBD port.
  3. Turn on the Ignition: Turn the ignition key to the “on” position, but do not start the engine.
  4. Follow the Tool’s Instructions: Use the diagnostic tool’s interface to read the fault codes.
  5. Record the Codes: Write down the fault codes for further analysis.

Alternatively, professional mechanics at service centers like CARDIAGTECH.NET can retrieve these codes for you using advanced diagnostic equipment.

Expand

Understanding the fault codes specific to Mercedes-Benz trucks is crucial for effective diagnostics and repairs. Below is an extensive list categorized by code series, providing meanings, possible causes, and potential solutions to address these issues promptly.

2.1. P0100 – P0199: Fuel and Air Metering

This series of codes relates to issues with the fuel and air mixture in the engine.

Read more: Mercedes-Benz B210A00 Code: Diagnosis and Repair Solutions
Code Meaning Possible Causes
P0100 Mass Air Flow Circuit Malfunction Dirty or faulty MAF sensor, vacuum leaks, wiring issues
P0102 Mass Air Flow Circuit Low Input Faulty MAF sensor, wiring problems, vacuum leaks
P0103 Mass Air Flow Circuit High Input Faulty MAF sensor, wiring issues
P0110 Intake Air Temperature Circuit Malfunction Faulty IAT sensor, wiring issues
P0112 Intake Air Temperature Circuit Low Input Faulty IAT sensor, wiring problems
P0113 Intake Air Temperature Circuit High Input Faulty IAT sensor, wiring issues
P0116 Engine Coolant Temperature Circuit Range/Performance Faulty ECT sensor, thermostat issues, cooling system problems
P0117 Engine Coolant Temperature Circuit Low Input Faulty ECT sensor, wiring problems
P0118 Engine Coolant Temperature Circuit High Input Faulty ECT sensor, wiring issues
P0120 Throttle/Pedal Position Sensor/Switch A Circuit Malfunction Faulty TPS, wiring issues
P0121 Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Faulty TPS, throttle body issues, wiring problems
P0122 Throttle/Pedal Position Sensor/Switch A Circuit Low Input Faulty TPS, wiring problems
P0123 Throttle/Pedal Position Sensor/Switch A Circuit High Input Faulty TPS, wiring issues
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control Faulty ECT sensor, thermostat issues, cooling system problems
P0130 O2 Sensor Circuit Malfunction (Bank 1, Sensor 1) Faulty O2 sensor, exhaust leaks, wiring issues
P0131 O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1) Faulty O2 sensor, exhaust leaks, wiring problems
P0132 O2 Sensor Circuit High Voltage (Bank 1, Sensor 1) Faulty O2 sensor, wiring issues
P0133 O2 Sensor Circuit Slow Response (Bank 1, Sensor 1) Faulty O2 sensor, exhaust leaks, wiring problems
P0134 O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) Faulty O2 sensor, exhaust leaks, wiring problems
P0135 O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) Faulty O2 sensor, wiring issues
P0136 O2 Sensor Circuit Malfunction (Bank 1, Sensor 2) Faulty O2 sensor, exhaust leaks, wiring issues
P0137 O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) Faulty O2 sensor, exhaust leaks, wiring problems
P0138 O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) Faulty O2 sensor, wiring issues
P0139 O2 Sensor Circuit Slow Response (Bank 1, Sensor 2) Faulty O2 sensor, exhaust leaks, wiring problems
P0140 O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2) Faulty O2 sensor, exhaust leaks, wiring problems
P0141 O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) Faulty O2 sensor, wiring issues
P0170 Fuel Trim Malfunction (Bank 1) Vacuum leaks, faulty O2 sensor, fuel injector issues, MAF sensor problems
P0171 System Too Lean (Bank 1) Vacuum leaks, faulty O2 sensor, fuel injector issues, MAF sensor problems
P0172 System Too Rich (Bank 1) Faulty O2 sensor, fuel injector issues, MAF sensor problems, fuel pressure regulator problems

The complex engine bay of a Mercedes-Benz truck, highlighting the importance of accurate fault code diagnostics for maintaining peak performance.

2.2. P0200 – P0299: Injector Circuit

These codes indicate problems with the fuel injectors and their circuits.

Code Meaning Possible Causes
P0200 Injector Circuit Malfunction Faulty injector, wiring issues, ECM problems
P0201 Injector Circuit Malfunction – Cylinder 1 Faulty injector, wiring problems, ECM problems
P0202 Injector Circuit Malfunction – Cylinder 2 Faulty injector, wiring problems, ECM problems
P0203 Injector Circuit Malfunction – Cylinder 3 Faulty injector, wiring problems, ECM problems
P0204 Injector Circuit Malfunction – Cylinder 4 Faulty injector, wiring problems, ECM problems
P0205 Injector Circuit Malfunction – Cylinder 5 Faulty injector, wiring problems, ECM problems
P0206 Injector Circuit Malfunction – Cylinder 6 Faulty injector, wiring problems, ECM problems
P0261 Cylinder 1 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0262 Cylinder 1 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0264 Cylinder 2 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0265 Cylinder 2 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0267 Cylinder 3 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0268 Cylinder 3 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0270 Cylinder 4 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0271 Cylinder 4 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0273 Cylinder 5 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0274 Cylinder 5 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0276 Cylinder 6 Injector Circuit Low Faulty injector, wiring problems, ECM problems
P0277 Cylinder 6 Injector Circuit High Faulty injector, wiring problems, ECM problems
P0299 Turbocharger/Supercharger Underboost Condition Boost leaks, faulty turbocharger, faulty boost sensor, wastegate issues, exhaust leaks
Read more: Decoding the C10C800 Mercedes Fault Code: A Comprehensive Guide

2.3. P0300 – P0399: Misfire

These codes relate to engine misfires.

Code Meaning Possible Causes
P0300 Random/Multiple Cylinder Misfire Detected Faulty spark plugs, ignition coils, fuel injectors, vacuum leaks, low compression, timing issues
P0301 Cylinder 1 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0302 Cylinder 2 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0303 Cylinder 3 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0304 Cylinder 4 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0305 Cylinder 5 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0306 Cylinder 6 Misfire Detected Faulty spark plug, ignition coil, fuel injector, vacuum leak, low compression
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor) Faulty knock sensor, wiring issues, loose sensor
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor) Faulty knock sensor, wiring issues
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) Faulty knock sensor, wiring issues
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) Faulty knock sensor, wiring issues
P0335 Crankshaft Position Sensor A Circuit Malfunction Faulty crankshaft position sensor, wiring issues
P0336 Crankshaft Position Sensor A Circuit Range/Performance Faulty crankshaft position sensor, timing issues, wiring problems
P0337 Crankshaft Position Sensor A Circuit Low Input Faulty crankshaft position sensor, wiring problems
P0338 Crankshaft Position Sensor A Circuit High Input Faulty crankshaft position sensor, wiring issues
P0340 Camshaft Position Sensor A Circuit Malfunction (Bank 1 or Single Sensor) Faulty camshaft position sensor, wiring issues, timing issues
P0341 Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or Single Sensor) Faulty camshaft position sensor, timing issues, wiring problems
P0342 Camshaft Position Sensor A Circuit Low Input (Bank 1 or Single Sensor) Faulty camshaft position sensor, wiring problems
P0343 Camshaft Position Sensor A Circuit High Input (Bank 1 or Single Sensor) Faulty camshaft position sensor, wiring issues

2.4. P0400 – P0499: Exhaust System

These codes relate to issues with the exhaust system, including EGR and catalytic converter problems.

Code Meaning Possible Causes
P0400 Exhaust Gas Recirculation Flow Malfunction Faulty EGR valve, clogged EGR passages, vacuum leaks, faulty EGR sensor
P0401 Exhaust Gas Recirculation Flow Insufficient Detected Faulty EGR valve, clogged EGR passages, vacuum leaks, faulty EGR sensor
P0402 Exhaust Gas Recirculation Flow Excessive Detected Faulty EGR valve, vacuum leaks, faulty EGR sensor
P0403 Exhaust Gas Recirculation Circuit Malfunction Faulty EGR valve, wiring issues
P0404 Exhaust Gas Recirculation Circuit Range/Performance Faulty EGR valve, wiring issues
P0405 Exhaust Gas Recirculation Sensor A Circuit Low Faulty EGR sensor, wiring problems
P0406 Exhaust Gas Recirculation Sensor A Circuit High Faulty EGR sensor, wiring issues
P0410 Secondary Air Injection System Malfunction Faulty air pump, vacuum leaks, faulty check valve, wiring issues
P0411 Secondary Air Injection System Incorrect Flow Detected Faulty air pump, vacuum leaks, faulty check valve, wiring issues
P0420 Catalyst System Efficiency Below Threshold (Bank 1) Faulty catalytic converter, exhaust leaks, faulty O2 sensors, engine problems
P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1) Faulty catalytic converter, exhaust leaks, faulty O2 sensors, engine problems
P0430 Catalyst System Efficiency Below Threshold (Bank 2) Faulty catalytic converter, exhaust leaks, faulty O2 sensors, engine problems
P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2) Faulty catalytic converter, exhaust leaks, faulty O2 sensors, engine problems
P0440 Evaporative Emission Control System Malfunction Vacuum leaks, faulty gas cap, faulty purge valve, faulty vent valve, faulty leak detection pump
P0441 Evaporative Emission Control System Incorrect Purge Flow Vacuum leaks, faulty purge valve, faulty vent valve, faulty leak detection pump, clogged EVAP lines
P0442 Evaporative Emission Control System Leak Detected (Small Leak) Vacuum leaks, faulty gas cap, faulty purge valve, faulty vent valve, faulty leak detection pump, cracked EVAP lines
P0446 Evaporative Emission Control System Vent Control Circuit Malfunction Faulty vent valve, wiring issues, clogged vent lines
P0455 Evaporative Emission Control System Leak Detected (Gross Leak) Vacuum leaks, missing or faulty gas cap, faulty purge valve, faulty vent valve, faulty leak detection pump, cracked EVAP lines
P0456 Evaporative Emission Control System Leak Detected (Very Small Leak) Vacuum leaks, faulty gas cap, faulty purge valve, faulty vent valve, faulty leak detection pump, cracked EVAP lines
P0457 Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off) Loose or faulty gas cap
P0460 Fuel Level Sensor Circuit Malfunction Faulty fuel level sensor, wiring issues
P0461 Fuel Level Sensor Circuit Range/Performance Faulty fuel level sensor, wiring issues
P0462 Fuel Level Sensor Circuit Low Input Faulty fuel level sensor, wiring problems
P0463 Fuel Level Sensor Circuit High Input Faulty fuel level sensor, wiring issues
Read more: C26DE Mercedes Fault Code: Troubleshooting Hydraulics Malfunction

2.5. P0500 – P0599: Vehicle Speed and Idle Control

These codes relate to vehicle speed sensors and idle control systems.

Code Meaning Possible Causes
P0500 Vehicle Speed Sensor Malfunction Faulty VSS, wiring issues, ECM problems
P0501 Vehicle Speed Sensor Range/Performance Faulty VSS, wiring issues, ECM problems
P0502 Vehicle Speed Sensor Low Input Faulty VSS, wiring problems
P0503 Vehicle Speed Sensor Intermittent/Erratic/High Faulty VSS, wiring issues
P0505 Idle Control System Malfunction Faulty IAC valve, vacuum leaks, throttle body issues, wiring problems
P0506 Idle Control System RPM Lower Than Expected Vacuum leaks, throttle body issues, faulty IAC valve, carbon buildup
P0507 Idle Control System RPM Higher Than Expected Vacuum leaks, throttle body issues, faulty IAC valve, wiring problems
P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction Faulty oil pressure sensor, wiring issues
P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance Faulty oil pressure sensor, wiring issues
P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage Faulty oil pressure sensor, wiring problems, low oil pressure
P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage Faulty oil pressure sensor, wiring issues
P0530 A/C Refrigerant Pressure Sensor Circuit Malfunction Faulty refrigerant pressure sensor, wiring issues
P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance Faulty refrigerant pressure sensor, wiring issues
P0532 A/C Refrigerant Pressure Sensor Circuit Low Input Faulty refrigerant pressure sensor, wiring problems, low refrigerant level
P0533 A/C Refrigerant Pressure Sensor Circuit High Input Faulty refrigerant pressure sensor, wiring issues, high refrigerant level
P0550 Power Steering Pressure Sensor Circuit Malfunction Faulty power steering pressure sensor, wiring issues
P0551 Power Steering Pressure Sensor Circuit Range/Performance Faulty power steering pressure sensor, wiring issues
P0552 Power Steering Pressure Sensor Circuit Low Input Faulty power steering pressure sensor, wiring problems
P0553 Power Steering Pressure Sensor Circuit High Input Faulty power steering pressure sensor, wiring issues

2.6. P0600 – P0699: Computer and Output Circuit

These codes relate to the vehicle’s computer and output circuits.

Code Meaning Possible Causes
P0600 Serial Communication Link Malfunction Wiring issues, faulty ECM, CAN bus problems
P0601 Internal Control Module Memory Check Sum Error Faulty ECM
P0602 Control Module Programming Error Faulty ECM, programming issues
P0603 Internal Control Module Keep Alive Memory (KAM) Error Faulty ECM
P0604 Internal Control Module Random Access Memory (RAM) Error Faulty ECM
P0605 Internal Control Module Read Only Memory (ROM) Error Faulty ECM
P0606 PCM Processor Fault Faulty ECM
P0620 Generator Control Circuit Malfunction Faulty alternator, wiring issues, ECM problems
P0621 Generator Lamp “L” Control Circuit Malfunction Faulty alternator, wiring issues, ECM problems
P0622 Generator Field “F” Control Circuit Malfunction Faulty alternator, wiring issues, ECM problems
P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction Wiring issues, faulty MIL, ECM problems
Read more: Mercedes Fault Code P200A: Intake Manifold Runner Performance Explained

2.7. P0700 – P0799: Transmission

These codes relate to transmission issues.

Code Meaning Possible Causes
P0700 Transmission Control System Malfunction Faulty TCM, wiring issues, transmission problems
P0701 Transmission Control System Range/Performance Faulty TCM, wiring issues, transmission problems
P0702 Transmission Control System Electrical Wiring issues, faulty solenoids, TCM problems
P0703 Torque Converter/Brake Switch B Circuit Malfunction Faulty brake switch, wiring issues
P0704 Clutch Switch Input Circuit Malfunction Faulty clutch switch, wiring issues
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input) Faulty transmission range sensor, wiring issues
P0706 Transmission Range Sensor Circuit Range/Performance Faulty transmission range sensor, wiring issues
P0707 Transmission Range Sensor Circuit Low Input Faulty transmission range sensor, wiring problems
P0708 Transmission Range Sensor Circuit High Input Faulty transmission range sensor, wiring issues
P0709 Transmission Range Sensor Circuit Intermittent Faulty transmission range sensor, wiring issues
P0710 Transmission Fluid Temperature Sensor Circuit Malfunction Faulty TFT sensor, wiring issues
P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance Faulty TFT sensor, wiring issues
P0712 Transmission Fluid Temperature Sensor Circuit Low Input Faulty TFT sensor, wiring problems
P0713 Transmission Fluid Temperature Sensor Circuit High Input Faulty TFT sensor, wiring issues
P0714 Transmission Fluid Temperature Sensor Circuit Intermittent Faulty TFT sensor, wiring issues
P0715 Input/Turbine Speed Sensor Circuit Malfunction Faulty input/turbine speed sensor, wiring issues
P0716 Input/Turbine Speed Sensor Circuit Range/Performance Faulty input/turbine speed sensor, wiring issues
P0717 Input/Turbine Speed Sensor Circuit No Signal Faulty input/turbine speed sensor, wiring issues
P0718 Input/Turbine Speed Sensor Circuit Intermittent Faulty input/turbine speed sensor, wiring issues
P0720 Output Speed Sensor Circuit Malfunction Faulty output speed sensor, wiring issues
P0721 Output Speed Sensor Range/Performance Faulty output speed sensor, wiring issues
P0722 Output Speed Sensor No Signal Faulty output speed sensor, wiring issues
P0723 Output Speed Sensor Intermittent Faulty output speed sensor, wiring issues
P0730 Incorrect Gear Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0731 Gear 1 Incorrect Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0732 Gear 2 Incorrect Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0733 Gear 3 Incorrect Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0734 Gear 4 Incorrect Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0735 Gear 5 Incorrect Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears
P0736 Reverse Incorrect Gear Ratio Transmission problems, faulty solenoids, low fluid level, damaged gears

2.8. P0800 – P0899: Transmission Control System

These codes relate to transmission control systems, including shift solenoids and clutch issues.

Code Meaning Possible Causes
P0801 Reverse Inhibit Control Circuit Malfunction Wiring issues, faulty solenoid
P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction Wiring issues, faulty solenoid
P0804 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction Wiring issues, faulty bulb
P0805 Clutch Position Sensor Circuit Malfunction Faulty sensor, wiring issues
P0806 Clutch Position Sensor Circuit Range/Performance Faulty sensor, wiring issues
P0807 Clutch Position Sensor Circuit Low Faulty sensor, wiring problems
P0808 Clutch Position Sensor Circuit High Faulty sensor, wiring issues
P0810 Clutch Position Control Error Faulty sensor, wiring issues, TCM problems
P0811 Excessive Clutch Slippage Clutch wear, faulty clutch, TCM problems
P0812 Reverse Input Circuit Malfunction Wiring issues, faulty switch
P0813 Reverse Output Circuit Malfunction Wiring issues, faulty relay
P0815 Upshift Switch Circuit Malfunction Wiring issues, faulty switch
P0816 Downshift Switch Circuit Malfunction Wiring issues, faulty switch
P0820 Gear Lever X-Y Sensor Circuit Faulty sensor, wiring issues
P0830 Clutch Pedal Switch A Circuit Malfunction Faulty switch, wiring issues
P0831 Clutch Pedal Switch A Circuit Low Faulty switch, wiring problems
P0832 Clutch Pedal Switch A Circuit High Faulty switch, wiring issues
P0833 Clutch Pedal Switch B Circuit Malfunction Faulty switch, wiring issues
P0834 Clutch Pedal Switch B Circuit Low Faulty switch, wiring problems
P0835 Clutch Pedal Switch B Circuit High Faulty switch, wiring issues
P0840 Transmission Fluid Pressure Sensor/Switch A Circuit Malfunction Faulty sensor, wiring issues
P0841 Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance Faulty sensor, wiring issues
P0842 Transmission Fluid Pressure Sensor/Switch A Circuit Low Faulty sensor, wiring problems
P0843 Transmission Fluid Pressure Sensor/Switch A Circuit High Faulty sensor, wiring issues
P0845 Transmission Fluid Pressure Sensor/Switch B Circuit Malfunction Faulty sensor, wiring issues
P0846 Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance Faulty sensor, wiring issues
P0847 Transmission Fluid Pressure Sensor/Switch B Circuit Low Faulty sensor, wiring problems
P0848 Transmission Fluid Pressure Sensor/Switch B Circuit High Faulty sensor, wiring issues

2.9. P1000 – P2999: Manufacturer Specific Codes

These are manufacturer-specific codes, which can vary widely. For Mercedes-Benz trucks, they often relate to unique systems and components.

Code Meaning Possible Causes
P1000 Electronic Gear Selector Module: Defective N15/5 Faulty gear selector module, wiring issues
P1228 (1997 C 220 CDI) Yet unknown code Requires further diagnostics
P1386 Knock control Faulty knock sensor, wiring issues
P1570 Intermittent No-Start Immobilizer Module Faulty immobilizer module, key issues, wiring problems
P1747 Electronic Gear Selector Module: Defective Interaction of CAN with control unit A1 (instrument cluster) CAN bus issues, faulty gear selector module, instrument cluster problems
P1750 Electronic Gear Selector Module: Very low control unit supply voltage Low voltage, wiring issues, faulty gear selector module
P1832 Electronic Gear Selector Module: SHORT in circuit N15/5 output stage Short circuit, wiring issues, faulty gear selector module
P1910 Electronic Gear Selector Module: Control Unit over voltage Over voltage, wiring issues, faulty gear selector module
P1912 Electronic Gear Selector Module: Weak touch push button voltage Faulty push button, wiring issues, gear selector module problems
P2000 NOx Trap Efficiency Below Threshold (Bank 1) Faulty NOx trap, exhaust leaks, faulty O2 sensors
P2001 NOx Trap Efficiency Below Threshold (Bank 2) Faulty NOx trap, exhaust leaks, faulty O2 sensors
P2003 Particulate Trap Efficiency Below Threshold (Bank 1) Faulty particulate trap, exhaust leaks, faulty sensors
P2004 Particulate Trap Efficiency Below Threshold (Bank 2) Faulty particulate trap, exhaust leaks, faulty sensors
P2031 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2) Faulty exhaust gas temperature sensor, wiring issues
P2032 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2) Faulty exhaust gas temperature sensor, wiring problems
P2033 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)

You May Also Like

Mercedes Fault Codes
Mercedes Benz Option Code List: Your Ultimate Guide
Mercedes Fault Codes
Mercedes P2002 Code: Diagnosis, Causes, and Solutions
Mercedes-Benz Ignition Coil
Mercedes Fault Codes
P0356 Mercedes Code: Diagnosis, Causes, and Solutions
Faulty Gas Cap Triggering P0456
Mercedes Fault Codes
P0456 Mercedes Code: Diagnosis, Causes, and Solutions
Mercedes Fault Codes
B15A8 Mercedes Fault Code: Causes, Symptoms, and Solutions
Mercedes Fault Codes
Mercedes Code P0304: Diagnosis, Causes, and Repair Solutions
Mercedes Fault Codes
P0088 Mercedes Fault Code: Diagnosis And Solutions Guide
Mercedes Fault Codes
Mercedes OBD1 Diagnostic Code Reader: Your Ultimate Guide
Mercedes Fault Codes
P2421 Code Mercedes: Diagnosis, Causes, and Solutions