What Are OBD-II Codes In Relation To Mercedes Diagnostics?

OBD-II codes are crucial for Mercedes diagnostics, offering insights into your vehicle’s health. Understanding these codes empowers you to efficiently troubleshoot issues, which is where MERCEDES-DIAGNOSTIC-TOOL.EDU.VN comes in. We provide comprehensive resources to decode these messages, helping you maintain your Mercedes’ peak performance by utilizing various diagnostic service. Learn more about decoding trouble codes and preventative measures.

1. What are OBD-II Codes? (Understanding OBD-II Codes)

On-Board Diagnostic II (OBD-II) codes serve as the communication medium through which your car’s computer relays information about its operational status and any detected anomalies, playing an essential role in modern vehicle diagnostics, especially for advanced automotive technology like Mercedes-Benz cars.

One of the most familiar indicators linked to OBD-II codes is the “Check Engine” light on your dashboard; when illuminated, it signals that the vehicle’s computer has identified a problem within the engine or emission system, triggering the OBD-II system to store a specific code (or multiple codes) corresponding to the detected anomaly.

Every modern vehicle, Mercedes-Benz models included, is equipped with an OBD-II port, commonly located beneath the dashboard near the steering column, functioning as an access point for diagnosing vehicle issues. By connecting an OBD-II scanner to this port, technicians and vehicle owners can retrieve stored codes, which are alphanumeric, typically consisting of a letter followed by four numbers (e.g., P0300), with each code indicating a specific problem ranging from a loose gas cap to more intricate engine malfunctions.

For Mercedes-Benz vehicles, OBD-II codes are essential for maintaining the vehicle’s sophisticated systems. These cars are engineered with precision, and the OBD-II system plays a significant role in ensuring every aspect functions as intended. An OBD-II code alerts the owner or technician to a potential issue needing attention, enabling early detection to prevent minor issues from escalating into major repairs, thereby maintaining performance and extending lifespan.

Here’s a breakdown of the OBD-II code structure:

• First Character: A letter designating the system or vehicle area where the issue was detected:

  • P: Powertrain (Engine and Transmission)
  • C: Chassis (ABS, Traction Control)
  • B: Body (Airbags, Climate Control)
  • U: Network Communication (CAN Bus, LAN)

• Next Two Characters: Numeric digits providing detailed information about the issue within the system specified by the first character. For example, P0300 indicates a random engine misfire.

• Hyphen or Space: A separator after the first three characters.

• Fourth Character: A numeric digit providing further specifics on the problem, like the severity or location. For example, P0301 might specify a misfire in cylinder 1.

• Remaining Characters (Optional): Additional characters that can offer even more specific details, like the component or sensor involved.

Understanding the difference between generic and manufacturer-specific codes is also crucial:

• Generic Codes: Standardized across all manufacturers and defined by the Society of Automotive Engineers (SAE), providing general information about a problem’s location and nature, typically formatted as P0xxx.

• Manufacturer-Specific Codes: Unique to Mercedes-Benz vehicles, starting with “P1” followed by two digits, offering more detailed information about issues, including additional codes beyond generic ones. For instance, a P1400 code on a Mercedes-Benz provides specific details not covered by generic codes.

2. Common Mercedes-Benz OBD-II Codes and Their Meanings

Knowing some common Mercedes-Benz OBD-II codes can empower you to address minor issues promptly, potentially saving on costly repairs down the line.

Here’s a rundown of some of the most frequently encountered codes:

P0100 – Mass Air Flow (MAF) Circuit Malfunction

• Description: Signals a problem with the Mass Air Flow sensor or circuit.
• Possible Causes: A dirty or faulty MAF sensor, air leaks, or damaged wiring.
• Solutions: Try cleaning or replacing the MAF sensor, checking for air leaks, and repairing any damaged wiring.
• Adsitco Products: MAF sensors, air filters.

P0130 – O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)

• Description: Indicates a fault in the oxygen sensor located in bank 1, sensor 1.
• Possible Causes: A faulty sensor, wiring issues, or exhaust leaks.
• Solutions: Replace the oxygen sensor, repair wiring, or fix exhaust leaks.
• Adsitco Products: Oxygen sensors, exhaust components.

P0171 – System Too Lean (Bank 1)

• Description: The fuel mixture in bank 1 is too lean (too much air, not enough fuel).
• Possible Causes: Vacuum leaks, fuel injection issues, or air intake problems.
• Solutions: Check for and repair vacuum leaks, inspect fuel injectors, and clean the air intake system.
• Adsitco Products: Vacuum hoses, fuel injectors, air intake components.

P0300 – Random/Multiple Cylinder Misfire Detected

• Description: Multiple engine cylinders are misfiring, affecting performance.
• Possible Causes: Faulty spark plugs, ignition coils, or distributor issues.
• Solutions: Replace spark plugs, ignition coils, or repair the distributor.
• Adsitco Products: Spark plugs, ignition coils, distributor components.

P0410 – Secondary Air Injection System Malfunction

• Description: Signals a problem with the emissions control air injection system.
• Possible Causes: A faulty air pump, blocked hoses, or faulty valves.
• Solutions: Replace the air pump, clear blockages in hoses, and replace valves.
• Adsitco Products: Air pumps, air injection hoses, valves.

P0500 – Vehicle Speed Sensor Malfunction

• Description: The vehicle’s speed sensor is reporting incorrect data.
• Possible Causes: A faulty speed sensor, wiring issues, or a malfunctioning dashboard.
• Solutions: Replace the speed sensor, repair wiring, and check dashboard functionality.
• Adsitco Products: Speed sensors, wiring harnesses.

P0560 – System Voltage Malfunction

• Description: Signals an issue with the car’s electrical system voltage.
• Possible Causes: A weak battery, faulty alternator, or bad connections.
• Solutions: Test and replace the battery, repair or replace the alternator, and check electrical connections.
• Adsitco Products: Batteries, alternators, electrical components.

P0700 – Transmission Control System Malfunction

• Description: Indicates a general fault in the transmission control system.
• Possible Causes: Transmission sensor failures, fluid problems, or ECM issues.
• Solutions: Check transmission fluid, replace sensors, and inspect the ECM.
• Adsitco Products: Transmission sensors, transmission fluid, ECM components.

P0720 – Output Speed Sensor Circuit Malfunction

• Description: A fault in the transmission’s output speed sensor.
• Possible Causes: A defective speed sensor or wiring problems.
• Solutions: Replace the output speed sensor and check and repair wiring.
• Adsitco Products: Speed sensors, transmission parts.

P0730 – Incorrect Gear Ratio

• Description: Incorrect gear ratio detection in the transmission.
• Possible Causes: Transmission slipping, hydraulic problems, or sensor issues.
• Solutions: Check for transmission slippage, repair hydraulic circuits, and replace sensors.
• Adsitco Products: Transmission rebuild kits, hydraulic components, sensors.

P2006 – Intake Manifold Runner Control Stuck Closed Bank 1

• Description: The intake manifold runner control in bank 1 is stuck closed.
• Possible Causes: A faulty control valve, vacuum leak, or mechanical failure.
• Solutions: Replace the control valve, repair vacuum leaks, and inspect the manifold.
• Adsitco Products: Intake manifold components, control valves.

P2187 – System Too Lean at Idle (Bank 1)

• Description: The fuel mixture in bank 1 is too lean during idle.
• Possible Causes: Vacuum leaks, faulty fuel injectors, or air metering issues.
• Solutions: Repair vacuum leaks, replace fuel injectors, and check air flow sensors.
• Adsitco Products: Fuel injectors, vacuum components, air flow sensors.

3. Full List of Mercedes-Benz OBD-II Codes Broken Out

To give you a more thorough understanding, here is an extensive compilation of Mercedes-Benz OBD-II codes, divided by their numerical range.

3.1. P0400 Mercedes Fault Codes

P0466 – Purge Flow Sensor Circuit Range/Performance

• Description: The purge flow sensor circuit exhibits performance issues or is out of the expected range.
• Possible Causes: Faulty purge flow sensor, clogged purge lines, or electrical connection issues.
• Solutions: Replace the purge flow sensor, clear purge lines, and check electrical connections.
• Adsitco Products: Purge flow sensors, emission system components.

P0467 – Purge Flow Sensor Circuit Low Input

• Description: Low input from the purge flow sensor circuit, indicating a potential short.
• Possible Causes: Short circuit in the purge flow sensor or a poor electrical connection.
• Solutions: Inspect wiring for shorts and secure electrical connections.
• Adsitco Products: Wiring harnesses, electrical connectors.

P0468 – Purge Flow Sensor Circuit High Input

• Description: High input from the purge flow sensor circuit, possibly due to an open circuit.
• Possible Causes: Open circuit in the purge flow sensor or a poor electrical connection.
• Solutions: Check for open circuits and ensure good electrical connections.
• Adsitco Products: Electrical repair kits, purge flow sensors.

P0469 – Purge Flow Sensor Circuit Intermittent

• Description: Intermittent signal from the purge flow sensor circuit.
• Possible Causes: Loose connections or intermittent short or open circuits.
• Solutions: Tighten all connections and inspect wiring for intermittent faults.
• Adsitco Products: Electrical testing tools, wiring components.

P0470 – Exhaust Pressure Sensor Malfunction

• Description: Fault detected in the exhaust pressure sensor circuit.
• Possible Causes: Faulty exhaust pressure sensor, exhaust leaks, or wiring issues.
• Solutions: Replace the exhaust pressure sensor, repair exhaust leaks, and check wiring.
• Adsitco Products: Exhaust pressure sensors, exhaust system components.

P0471 – Exhaust Pressure Sensor Range/Performance

• Description: The exhaust pressure sensor shows performance outside the expected range.
• Possible Causes: Faulty sensor, clogged exhaust, or wiring problems.
• Solutions: Replace the sensor, unclog the exhaust system, and repair wiring.
• Adsitco Products: Exhaust sensors, exhaust repair kits.

P0472 – Exhaust Pressure Sensor Low

• Description: Low signal from the exhaust pressure sensor.
• Possible Causes: Short circuit in sensor wiring or a faulty sensor.
• Solutions: Check wiring for shorts and replace the exhaust pressure sensor.
• Adsitco Products: Wiring repair components, exhaust pressure sensors.

P0473 – Exhaust Pressure Sensor High

• Description: High signal from the exhaust pressure sensor.
• Possible Causes: Open circuit in sensor wiring or a faulty sensor.
• Solutions: Check for open circuits and replace the sensor.
• Adsitco Products: Exhaust pressure sensors, wiring kits.

P0474 – Exhaust Pressure Sensor Intermittent

• Description: Intermittent readings from the exhaust pressure sensor.
• Possible Causes: Loose connections or intermittent faults in wiring.
• Solutions: Secure connections and inspect wiring for intermittent faults.
• Adsitco Products: Wiring components, exhaust pressure sensors.

P0475 – Exhaust Pressure Control Valve Malfunction

• Description: Malfunction in the exhaust pressure control valve.
• Possible Causes: Faulty control valve, clogged exhaust system, or wiring issues.
• Solutions: Replace control valve, clear exhaust system, and repair wiring.
• Adsitco Products: Exhaust control valves, exhaust system components.

P0476 – Exhaust Pressure Control Valve Range/Performance

• Description: Exhaust pressure control valve performance is outside the expected range.
• Possible Causes: Sticking or faulty valve, clogged exhaust, or sensor issues.
• Solutions: Replace or clean the valve, unclog exhaust, and check sensors.
• Adsitco Products: Exhaust valves, sensors, exhaust maintenance kits.

P0477 – Exhaust Pressure Control Valve Low

• Description: Low signal from the exhaust pressure control valve.
• Possible Causes: Short circuit in valve circuit or a faulty valve.
• Solutions: Inspect wiring for shorts and replace the valve.
• Adsitco Products: Exhaust pressure control valves, wiring repair components.

P0478 – Exhaust Pressure Control Valve High

• Description: High signal from the exhaust pressure control valve.
• Possible Causes: Open circuit in valve circuit or a faulty valve.
• Solutions: Check for open circuits and replace the valve.
• Adsitco Products: Exhaust pressure control valves, electrical repair kits.

P0479 – Exhaust Pressure Control Valve Intermittent

• Description: Intermittent signal from the exhaust pressure control valve.
• Possible Causes: Loose connections or intermittent faults in wiring.
• Solutions: Tighten connections and inspect wiring.
• Adsitco Products: Electrical connectors, exhaust pressure control valves.

P0480 – Cooling Fan 1 Control Circuit Malfunction

• Description: Problem detected in the control circuit of cooling fan 1.
• Possible Causes: Faulty fan control relay, wiring issues, or a faulty fan motor.
• Solutions: Replace the fan control relay, repair wiring, and replace the fan motor.
• Adsitco Products: Cooling fan components, relays, wiring harnesses.

P0481 – Cooling Fan 2 Control Circuit Malfunction

• Description: Issue in the control circuit of cooling fan 2.
• Possible Causes: A defective fan control relay, wiring problems, or a faulty fan.
• Solutions: Replace the relay, check and repair wiring, and replace the fan.
• Adsitco Products: Cooling system components, electrical repair parts.

P0482 – Cooling Fan 3 Control Circuit Malfunction

• Description: Fault in the control circuit of cooling fan 3.
• Possible Causes: A malfunctioning fan relay, wiring faults, or a defective fan.
• Solutions: Replace the relay, repair wiring, and replace the fan.
• Adsitco Products: Cooling fans, fan relays, wiring kits.

P0483 – Cooling Fan Rationality Check Malfunction

• Description: The cooling fan is not operating as expected.
• Possible Causes: Faulty fan motor, control module issues, or sensor faults.
• Solutions: Replace the fan motor, inspect the control module, and replace sensors.
• Adsitco Products: Cooling fans, control modules, sensors.

P0484 – Cooling Fan Circuit Over Current

• Description: The cooling fan circuit draws an unusually high current, indicating a potential overload or short circuit.
• Possible Causes: Short circuit in the fan motor, wiring issues, control module faults, or an overloaded fan motor.
• Solutions: Inspect and repair wiring, replace the fan motor if necessary, and check and repair the control module.
• Adsitco Products: Cooling fans, wiring harnesses, control modules.

P0485 – Cooling Fan Power/Ground Circuit Malfunction

• Description: There is a malfunction in the power or ground circuit of the cooling fan, indicating a possible electrical connection issue.
• Possible Causes: Faulty electrical connections, damaged wiring, a malfunctioning control module, or ground circuit issues.
• Solutions: Check and repair electrical connections, inspect and repair wiring, and replace or repair the control module as needed.
• Adsitco Products: Cooling fans, electrical connectors, wiring harnesses, control modules.

3.2. P0500 Mercedes Fault Codes

P0500 – Vehicle Speed Sensor “A” Malfunction

• Description: This code indicates an issue with the vehicle speed sensor, which affects the functioning of the speedometer and may impact transmission shifting.
• Possible Causes: Faulty vehicle speed sensor, damaged wiring or connections to the sensor, malfunctioning speedometer, issues with the ECU.
• Solutions: Replace the vehicle speed sensor, inspect and repair wiring and connections, check the speedometer and ECU for faults.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0501 – Vehicle Speed Sensor “A” Range/Performance

• Description: This code is set when the vehicle speed sensor “A” is providing a signal that is out of the expected range or behaving erratically.
• Possible Causes: Malfunctioning vehicle speed sensor, intermittent wiring issues, faulty speedometer, ECU problems.
• Solutions: Replace or recalibrate the vehicle speed sensor, check and repair wiring, inspect speedometer and ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0502 – Vehicle Speed Sensor “A” Circuit Low Input

• Description: The vehicle speed sensor “A” is reporting a lower than expected voltage, indicating a potential short or sensor issue.
• Possible Causes: Short circuit in the speed sensor wiring, faulty vehicle speed sensor, issues with the ECU.
• Solutions: Inspect and repair wiring for short circuits, replace the vehicle speed sensor, check the ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, ECUs.

P0503 – Vehicle Speed Sensor “A” Intermittent/Erratic/High

• Description: This code signifies that the vehicle speed sensor “A” is providing intermittent, erratic, or overly high readings.
• Possible Causes: Faulty or intermittent vehicle speed sensor, wiring or connection issues, speedometer or ECU faults.
• Solutions: Replace the vehicle speed sensor, inspect and repair wiring and connections, check the speedometer and ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0504 – Brake Switch “A”/”B” Correlation

• Description: The code indicates a mismatch between the signals from brake switches A and B, suggesting a possible switch failure or wiring issue.
• Possible Causes: Faulty brake light switch, misaligned or damaged brake light switches, wiring or connector issues.
• Solutions: Adjust or replace brake light switches, inspect and repair wiring and connectors.
• Adsitco Products: Brake light switches, wiring harnesses, connectors.

P0505 – Idle Control System Malfunction

• Description: This code is triggered when there is a malfunction in the idle control system, leading to erratic or incorrect idle speed.
• Possible Causes: Faulty idle air control valve, vacuum leaks, throttle body issues, ECU problems.
• Solutions: Replace or clean the idle air control valve, check for and repair vacuum leaks, inspect the throttle body and ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0506 – Idle Control System RPM Lower Than Expected

• Description: This code indicates that the engine’s idle speed is consistently lower than the expected range, which might cause stalling.
• Possible Causes: Dirty or faulty idle air control valve, vacuum leaks, throttle body or ECU issues.
• Solutions: Clean or replace the idle air control valve, repair vacuum leaks, inspect the throttle body and ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0507 – Idle Control System RPM Higher Than Expected

• Description: This code suggests that the engine’s idle speed is consistently higher than expected, which may affect vehicle handling.
• Possible Causes: Sticking idle air control valve, vacuum leaks, throttle body malfunctions, ECU issues.
• Solutions: Replace or clean the idle air control valve, check for and repair vacuum leaks, inspect the throttle body and ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0510 – Closed Throttle Position Switch Malfunction

• Description: The throttle position switch is not operating as expected when the throttle is closed.
• Possible Causes: Faulty throttle position switch, misaligned or damaged switch, wiring issues.
• Solutions: Replace or adjust the throttle position switch, inspect and repair wiring.
• Adsitco Products: Throttle position switches, wiring harnesses.

P0520 – Engine Oil Pressure Sensor/Switch Circuit Malfunction

• Description: There is a malfunction in the circuit of the engine oil pressure sensor or switch.
• Possible Causes: Faulty oil pressure sensor/switch, wiring or connector issues, engine oil level/quality problems.
• Solutions: Replace the oil pressure sensor/switch, check and repair wiring, ensure correct oil level and quality.
• Adsitco Products: Oil pressure sensors/switches, wiring harnesses.

P0521 – Engine Oil Pressure Sensor/Switch Circuit Range/Performance

• Description: The engine oil pressure sensor/switch circuit is providing a reading outside the expected range or is performing poorly.
• Possible Causes: Malfunctioning oil pressure sensor, wiring or connection issues, incorrect engine oil viscosity.
• Solutions: Replace or recalibrate the oil pressure sensor, inspect wiring, use correct oil viscosity.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0522 – Engine Oil Pressure Sensor/Switch Circuit Low Voltage

• Description: The engine oil pressure sensor/switch circuit is reporting lower than expected voltage.
• Possible Causes: Short circuit in oil pressure sensor wiring, faulty sensor, low engine oil level.
• Solutions: Inspect and repair wiring, replace the oil pressure sensor, check and refill engine oil.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0523 – Engine Oil Pressure Sensor/Switch Circuit High Voltage

• Description: The engine oil pressure sensor/switch circuit is reporting higher than expected voltage.
• Possible Causes: Open circuit or poor electrical connection in sensor wiring, faulty sensor.
• Solutions: Inspect and repair wiring, replace the oil pressure sensor.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0530 – A/C Refrigerant Pressure Sensor Circuit Malfunction

• Description: There is a malfunction in the air conditioning refrigerant pressure sensor circuit.
• Possible Causes: Faulty A/C refrigerant pressure sensor, wiring or connector issues, refrigerant level problems.
• Solutions: Replace the A/C refrigerant pressure sensor, check and repair wiring, ensure correct refrigerant level.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses.

P0531 – A/C Refrigerant Pressure Sensor Circuit Range/Performance

• Description: The A/C refrigerant pressure sensor circuit is providing a reading outside the expected range or is performing poorly.
• Possible Causes: Malfunctioning A/C refrigerant pressure sensor, wiring or connection issues, incorrect refrigerant charge.
• Solutions: Replace or recalibrate the A/C refrigerant pressure sensor, inspect wiring, correct refrigerant charge.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses.

P0532 – A/C Refrigerant Pressure Sensor Circuit Low Input

• Description: The A/C refrigerant pressure sensor circuit is reporting lower than expected input.
• Possible Causes: Low refrigerant level, short circuit in sensor wiring, faulty sensor.
• Solutions: Refill refrigerant, inspect and repair wiring, replace the A/C refrigerant pressure sensor.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses, refrigerants.

P0533 – A/C Refrigerant Pressure Sensor Circuit High Input

• Description: The A/C refrigerant pressure sensor circuit is reporting higher than expected input.
• Possible Causes: Overcharged refrigerant system, open circuit or poor electrical connection in sensor wiring, faulty sensor.
• Solutions: Adjust refrigerant charge, inspect and repair wiring, replace the A/C refrigerant pressure sensor.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses, refrigerants.

P0534 – Air Conditioner Refrigerant Charge Loss

• Description: There is a detected loss of refrigerant charge in the air conditioning system.
• Possible Causes: Refrigerant leaks, faulty A/C compressor, damaged A/C system components.
• Solutions: Check for and repair refrigerant leaks, replace faulty components like A/C compressor.
• Adsitco Products: A/C refrigerants, A/C compressors, A/C system components.

P0550 – Power Steering Pressure Sensor Circuit Malfunction

• Description: The circuit of the power steering pressure sensor is malfunctioning.
• Possible Causes: Faulty power steering pressure sensor, wiring or connector issues, power steering fluid level or quality problems.
• Solutions: Replace the power steering pressure sensor, check and repair wiring, ensure correct power steering fluid level and quality.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering fluid.

P0551 – Power Steering Pressure Sensor Circuit Range/Performance

• Description: The power steering pressure sensor circuit is providing a reading outside the expected range or is performing poorly.
• Possible Causes: Malfunctioning power steering pressure sensor, wiring or connection issues, power steering pump faults.
• Solutions: Replace or recalibrate the power steering pressure sensor, inspect wiring, check the power steering pump.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering pumps.

P0552 – Power Steering Pressure Sensor Circuit Low Input

• Description: The power steering pressure sensor circuit is reporting lower than expected input.
• Possible Causes: Low power steering fluid level, short circuit in sensor wiring, faulty sensor.
• Solutions: Refill power steering fluid, inspect and repair wiring, replace the power steering pressure sensor.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering fluid.

P0553 – Power Steering Pressure Sensor Circuit High Input

• Description: The power steering pressure sensor circuit is reporting higher than expected input.
• Possible Causes: Faulty power steering pressure sensor, open circuit or poor electrical connection in sensor wiring.
• Solutions: Replace the power steering pressure sensor, inspect and repair wiring.
• Adsitco Products: Power steering pressure sensors, wiring harnesses.

P0554 – Power Steering Pressure Sensor Circuit Intermittent

• Description: The power steering pressure sensor circuit is experiencing intermittent readings or connectivity.
• Possible Causes: Intermittent wiring or connection issues, failing power steering pressure sensor.
• Solutions: Inspect and repair wiring and connections, replace the power steering pressure sensor if necessary.
• Adsitco Products: Power steering pressure sensors, wiring harnesses.

P0560 – System Voltage Malfunction

• Description: There is a malfunction in the vehicle’s electrical system voltage.
• Possible Causes: Faulty battery, alternator issues, wiring problems.
• Solutions: Check and replace the battery if necessary, inspect and repair the alternator, check wiring.
• Adsitco Products: Batteries, alternators, wiring harnesses.

P0561 – System Voltage Unstable

• Description: The vehicle’s electrical system voltage is unstable.
• Possible Causes: Alternator malfunctioning, poor battery condition, electrical system issues.
• Solutions: Test and replace the alternator, inspect the battery, check for electrical system faults.
• Adsitco Products: Alternators, batteries, electrical system components.

P0562 – System Voltage Low

• Description: The system voltage is lower than expected, indicating a potential charging or electrical issue.
• Possible Causes: Weak or failing battery, alternator not charging properly, electrical connections issues.
• Solutions: Test and replace the battery, check alternator function, inspect electrical connections.
• Adsitco Products: Batteries, alternators, electrical connectors.

P0563 – System Voltage High

• Description: The system voltage is higher than expected, which could indicate an overcharging issue.
• Possible Causes: Faulty voltage regulator, alternator issues, electrical system malfunctions.
• Solutions: Replace or repair the voltage regulator, inspect the alternator, check the electrical system.
• Adsitco Products: Voltage regulators, alternators, electrical system components.

P0565 – Cruise Control On Signal Malfunction

• Description: There is a malfunction in the “Cruise Control On” signal, affecting the cruise control system’s operation.
• Possible Causes: Faulty cruise control switch, wiring issues, cruise control module faults.
• Solutions: Replace the cruise control switch, inspect and repair wiring, check the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0566 – Cruise Control Off Signal Malfunction

• Description: There is a malfunction in the “Cruise Control Off” signal, impacting the cruise control system’s ability to disengage.
• Possible Causes: Faulty cruise control switch, wiring problems, cruise control module defects.
• Solutions: Replace the cruise control switch, check and repair wiring, inspect the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0567 – Cruise Control Resume Signal Malfunction

• Description: The “Cruise Control Resume” signal is malfunctioning, affecting the cruise control’s resume function.
• Possible Causes: Malfunctioning cruise control switch, wiring issues, faults in the cruise control module.
• Solutions: Replace the cruise control switch, inspect and repair wiring, check the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0568 – Cruise Control Set Signal Malfunction

• Description: There is a malfunction in the “Cruise Control Set” signal, impacting the ability to set the cruise control.
• Possible Causes: Defective cruise control switch, wiring problems, issues with the cruise control module.
• Solutions: Replace the cruise control switch, check and repair wiring, inspect the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0569 – Cruise Control Coast Signal Malfunction

• Description: The “Cruise Control Coast” signal is malfunctioning, affecting the cruise control’s coast function.
• Possible Causes: Faulty cruise control switch, wiring issues, cruise control module problems.
• Solutions: Replace the cruise control switch, inspect and repair wiring, check the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0570 – Cruise Control Accel Signal Malfunction

• Description: There is a malfunction in the “Cruise Control Accel” signal, impacting the cruise control’s acceleration function.
• Possible Causes: Malfunctioning cruise control switch, wiring problems, faults in the cruise control module.
• Solutions: Replace the cruise control switch, check and repair wiring, inspect the cruise control module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0571 – Cruise Control/Brake Switch A Circuit Malfunction

• Description: There is a malfunction in the circuit of the Cruise Control/Brake Switch A, impacting the interaction between cruise control and braking systems.
• Possible Causes: Faulty brake switch, wiring or connector issues, cruise control system faults.
• Solutions: Replace the brake switch, inspect and repair wiring, check the cruise control system.
• Adsitco Products: Brake switches, wiring harnesses, cruise control systems.

P0572 – Cruise Control/Brake Switch A Circuit Low

• Description: The Cruise Control/Brake Switch A circuit is reporting lower than expected voltage, indicating a potential issue.
• Possible Causes: Short circuit in brake switch wiring, faulty brake switch.
• Solutions: Inspect and repair wiring, replace the brake switch.
• Adsitco Products: Brake switches, wiring harnesses.

P0573 – Cruise Control/Brake Switch A Circuit High

• Description: The Cruise Control/Brake Switch A circuit is reporting higher than expected voltage, indicating a potential electrical issue.
• Possible Causes: Open circuit or poor electrical connection in brake switch wiring, faulty brake switch.
• Solutions: Inspect and repair wiring, replace the brake switch.
• Adsitco Products: Brake switches, wiring harnesses.

P0574 to P0580 (P0575, P0576, P0577, P0578, P0579) – Cruise Control Related Malfunctions

• Description: These codes indicate various malfunctions related to the cruise control system.
• Possible Causes: Varying based on specific code, including faulty cruise control module, wiring issues, sensor faults, switch problems.
• Solutions: Depending on the specific code, solutions may include replacing the cruise control module, repairing wiring, replacing sensors or switches.
• Adsitco Products: Cruise control modules, wiring harnesses, sensors, switches.

3.3. P0600 Mercedes Fault Codes

P0600 – Serial Communication Link Malfunction

• Description: The Serial Communication Link is experiencing a malfunction, indicating potential issues with communication between control modules.
• Possible Causes: Faulty wiring, poor electrical connections, issues with control module communication.
• Solutions: Inspect and repair wiring, ensure proper electrical connections, diagnose and address control module communication problems.
• Adsitco Products: Wiring harnesses, control modules.

P0601 – Internal Control Module Memory Check Sum Error

• Description: An error in the internal control module’s memory check sum has been detected, indicating a potential memory-related issue.
• Possible Causes: Faulty control module memory, programming errors.
• Solutions: Evaluate and potentially replace the control module, reprogram as necessary.
• Adsitco Products: Control modules.

P0602 – Control Module Programming Error

• Description: The control module is reporting a programming error, indicating potential issues with its programming.
• Possible Causes: Incorrect programming, issues with software.
• Solutions: Reprogram the control module with correct software, ensure proper programming procedures are followed.
• Adsitco Products: Control modules, programming tools.

P0603 – Internal Control Module Keep Alive Memory (KAM) Error

• Description: An error in the internal control module’s Keep Alive Memory (KAM) has been detected, indicating potential memory retention problems.
• Possible Causes: Faulty control module KAM, wiring issues.
• Solutions: Evaluate and potentially replace the control module, inspect and repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0604 – Internal Control Module Random Access Memory (RAM) Error

• Description: The internal control module is reporting a Random Access Memory (RAM) error, indicating potential issues with memory storage.
• Possible Causes: Faulty control module RAM, wiring issues.
• Solutions: Evaluate and potentially replace the control module, inspect and repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0605 – Internal Control Module Read Only Memory (ROM) Error

• Description: The internal control module is reporting a Read Only Memory (ROM) error, indicating potential issues with memory storage.
• Possible Causes: Faulty control module ROM, wiring issues.
• Solutions: Evaluate and potentially replace the control module, inspect and repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0606 – PCM Processor Fault

• Description: The Powertrain Control Module (PCM) is reporting a processor fault, indicating potential issues with the PCM.
• Possible Causes: Faulty PCM, wiring issues.
• Solutions: Evaluate and potentially replace the PCM, inspect and repair wiring.
• Adsitco Products: PCM, wiring harnesses.

P0608 – Control Module VSS Output “A” Malfunction

• Description: The control module is reporting a Vehicle Speed Sensor (VSS) Output “A” malfunction, indicating potential issues with the VSS output.
• Possible Causes: Faulty VSS, wiring issues.
• Solutions: Evaluate and potentially replace the VSS, inspect and repair wiring.
• Adsitco Products: Vehicle Speed Sensors, wiring harnesses.

P0609 – Control Module VSS Output “B” Malfunction

• Description: The control module is reporting a Vehicle Speed Sensor (VSS) Output “B” malfunction, indicating potential issues with the VSS output.
• Possible Causes: Faulty VSS, wiring issues.
• Solutions: Evaluate and potentially replace the VSS, inspect and repair wiring.
• Adsitco Products: Vehicle Speed Sensors, wiring harnesses.

P0620 – Generator Control Circuit Malfunction

• Description: The generator control circuit is experiencing a malfunction, indicating potential issues with the generator.
• Possible Causes: Faulty generator, wiring issues.
• Solutions: Evaluate and potentially replace the generator, inspect and repair wiring.
• Adsitco Products: Generators, wiring harnesses.

P0621 – Generator Lamp “L” Control Circuit Malfunction

• Description: The generator lamp “L” control circuit is reporting a malfunction, indicating potential issues with the generator lamp control.
• Possible Causes: Faulty generator lamp, wiring issues