Autel Error Code 20708: Troubleshooting and Solutions

Navigating the complexities of automotive diagnostics can be challenging, especially when encountering error codes like Autel Error Code 20708. This guide provides a comprehensive understanding of this error, offering solutions and insights. At CARDIAGTECH.NET, we understand the critical role diagnostic tools play in modern auto repair, so let’s delve into the specifics of Autel error code 20708, its potential causes, and, most importantly, how to resolve it efficiently.

1. Understanding Autel Error Code 20708

Autel error code 20708 can be a frustrating roadblock for automotive technicians. It often indicates a communication issue within the vehicle’s system, typically related to the diagnostic tool’s ability to properly connect and retrieve data from the car’s various modules. Whether you are dealing with a malfunctioning sensor, a faulty ECU, or a simple connection error, understanding the root cause is the first step toward effective troubleshooting. This error can manifest in various Autel diagnostic tools, including the MaxiSYS series and the Autel IM508, affecting a wide range of vehicles.

1.1. Common Symptoms Associated with Error Code 20708

When Autel error code 20708 appears, you may encounter several symptoms that indicate a problem with the diagnostic process. These symptoms can range from minor inconveniences to significant hindrances in your diagnostic workflow. Recognizing these signs early can help in diagnosing and resolving the issue more quickly.

• Inability to Establish Communication: The most common symptom is the diagnostic tool’s inability to establish a stable communication link with the vehicle’s ECU. This prevents you from accessing live data, reading diagnostic trouble codes (DTCs), or performing necessary tests and calibrations.
• Intermittent Connectivity: In some cases, the connection may be intermittent, dropping in and out during the diagnostic session. This unstable connection can lead to inaccurate readings and incomplete diagnostic procedures, making it difficult to pinpoint the exact problem.
• Frozen Screen or Software Crashes: The Autel diagnostic tool might freeze or the software could crash when attempting to perform certain functions. This can be particularly frustrating when you are in the middle of a diagnostic process, potentially leading to data loss and wasted time.
• Incorrect Data Display: When the tool does manage to communicate, it might display incorrect or nonsensical data. This can mislead your diagnostic efforts, causing you to chase phantom issues and overlook the actual problem.
• Failure to Read Diagnostic Trouble Codes (DTCs): One of the primary functions of a diagnostic tool is to read DTCs, which provide valuable insights into the vehicle’s issues. Error code 20708 can prevent the tool from retrieving these codes, leaving you in the dark about the vehicle’s condition.

1.2. Potential Causes of Autel Error Code 20708

Several factors can contribute to the occurrence of Autel error code 20708. Understanding these potential causes is essential for effective troubleshooting and resolution.

• Software Glitches: Bugs or outdated versions of the Autel diagnostic tool’s software can cause communication errors. Software glitches can interfere with the tool’s ability to properly interface with the vehicle’s ECU, leading to error code 20708.
• CAN Bus Issues: Problems with the vehicle’s Controller Area Network (CAN) bus, such as shorts, open circuits, or corrosion, can disrupt communication between the diagnostic tool and the ECU. The CAN bus is the backbone of modern vehicle communication, and any issues here can manifest as error code 20708.
• Damaged Cables or Connectors: Faulty or damaged cables and connectors can prevent the diagnostic tool from properly connecting to the vehicle’s diagnostic port. Physical damage, corrosion, or loose connections can all disrupt the communication pathway.
• ECU Problems: A malfunctioning Engine Control Unit (ECU) can be unable to respond to the diagnostic tool’s requests, resulting in error code 20708. The ECU is the brain of the vehicle, and if it’s not functioning correctly, it can hinder diagnostic efforts.
• Incorrect Tool Configuration: If the Autel diagnostic tool is not properly configured for the specific vehicle being diagnosed, it may be unable to establish a connection. This includes selecting the correct vehicle make, model, and year in the tool’s settings.

1.3. Vehicles and Modules Most Commonly Affected

Autel error code 20708 can affect a wide range of vehicles and modules, but some are more commonly impacted than others. Knowing which vehicles and modules are most susceptible can help you narrow down the potential causes and speed up the diagnostic process.

• BMW: BMW vehicles, particularly those from the E and F series, are frequently reported to experience communication issues leading to error code 20708. Modules like the Footwell Module (FRM) and various control units are often involved.
• Mercedes-Benz: Mercedes-Benz vehicles, especially those with complex electronic systems, are also prone to this error. Common modules affected include the Engine Control Unit (ECU), Transmission Control Unit (TCU), and various body control modules.
• VAG Group (Volkswagen, Audi, Skoda, Seat): Vehicles from the VAG group, known for their advanced technology, can encounter error code 20708 in modules such as the ABS control unit, airbag module, and engine management system.
• Ford: Ford vehicles, particularly those with the CAN bus system, can experience communication issues. Modules like the Powertrain Control Module (PCM), ABS module, and body control module are often affected.
• General Modules: Beyond specific vehicle makes, certain modules are generally more prone to communication errors. These include:
  • Engine Control Unit (ECU): The ECU is central to vehicle operation, and any communication issues here can lead to error code 20708.
  • Transmission Control Unit (TCU): The TCU manages the transmission, and problems with communication can disrupt its function.
  • Anti-lock Braking System (ABS) Module: The ABS module controls the anti-lock braking system, and communication errors can impact its performance.
  • Airbag Module: The airbag module is responsible for deploying airbags, and any communication issues can affect safety systems.
  • Body Control Module (BCM): The BCM manages various body functions, and communication problems can disrupt these features.

Understanding these common symptoms, potential causes, and frequently affected vehicles and modules can significantly enhance your ability to diagnose and resolve Autel error code 20708. With this knowledge, you can approach the troubleshooting process more systematically and efficiently, ensuring accurate and timely repairs. Remember, CARDIAGTECH.NET is here to provide you with the diagnostic tools and support you need to excel in automotive repair.

2. Step-by-Step Troubleshooting Guide for Autel Error Code 20708

When faced with Autel error code 20708, a systematic troubleshooting approach is crucial to efficiently identify and resolve the underlying issue. This step-by-step guide will walk you through the process, helping you eliminate potential causes and pinpoint the exact problem.

2.1. Preliminary Checks and Preparations

Before diving into more complex troubleshooting steps, it’s essential to perform some basic checks and preparations. These initial steps can often reveal simple issues and save you valuable time.

• Ensure a Full Battery Charge: Verify that both the vehicle’s battery and the Autel diagnostic tool’s battery are fully charged. Low voltage can cause communication errors and prevent the tool from functioning correctly. Use a multimeter to check the battery voltage, ensuring it meets the manufacturer’s specifications.
• Inspect Cables and Connectors: Thoroughly inspect all cables and connectors for any signs of damage, such as frayed wires, bent pins, or corrosion. Replace any damaged cables or connectors to ensure a solid connection. Clean the connectors with a specialized electronic cleaner to remove any corrosion or debris.
• Verify Software Version: Ensure that your Autel diagnostic tool is running the latest software version. Outdated software can contain bugs or compatibility issues that lead to communication errors. Check for updates via the Autel website or through the tool’s built-in update function.

2.2. Connecting the Autel Tool Properly

Properly connecting the Autel diagnostic tool to the vehicle is fundamental for successful communication. Follow these steps to ensure a secure and correct connection:

• Locate the Diagnostic Port: Identify the vehicle’s diagnostic port, typically located under the dashboard on the driver’s side. Consult the vehicle’s manual if you’re unsure of its exact location.
• Connect the Cable: Plug the Autel diagnostic tool’s cable into the diagnostic port, ensuring it clicks into place. A loose connection can cause intermittent communication issues.
• Turn On the Ignition: Turn the vehicle’s ignition to the “ON” position without starting the engine. This powers up the vehicle’s electronic systems and allows the diagnostic tool to communicate with the ECU.
• Select the Vehicle: On the Autel diagnostic tool, select the correct vehicle make, model, and year. This ensures the tool uses the appropriate communication protocols and diagnostic routines.
• Initiate a Test Connection: Before proceeding with any diagnostic procedures, initiate a test connection to verify that the tool can communicate with the vehicle’s ECU. If the test fails, troubleshoot the connection further before moving on.

2.3. Diagnosing the CAN Bus System

The Controller Area Network (CAN) bus is the backbone of modern vehicle communication. Issues within the CAN bus system can manifest as Autel error code 20708. Follow these steps to diagnose the CAN bus:

• Check for CAN Bus Shorts and Opens: Use a multimeter to check for shorts to ground or open circuits in the CAN bus wiring. Refer to the vehicle’s wiring diagram to identify the CAN high and CAN low wires.
• Inspect CAN Bus Resistors: CAN bus systems typically have 120-ohm resistors at each end of the network. Use a multimeter to measure the resistance between the CAN high and CAN low wires. A reading significantly different from 60 ohms (two 120-ohm resistors in parallel) indicates a problem.
• Use an Oscilloscope: An oscilloscope can be used to examine the CAN bus waveforms. Irregular waveforms can indicate noise, interference, or other communication issues. Compare the waveforms to known good examples to identify any anomalies.
• Check for Corrosion: Inspect the CAN bus wiring and connectors for signs of corrosion. Corrosion can disrupt the flow of data and cause communication errors. Clean the connectors with an electronic cleaner and repair or replace any corroded wiring.

2.4. ECU and Module-Specific Troubleshooting

If the CAN bus system appears to be functioning correctly, the issue may lie with a specific ECU or module. Follow these steps to troubleshoot individual modules:

• Identify the Suspect Module: Use the Autel diagnostic tool to scan the vehicle for diagnostic trouble codes (DTCs). DTCs related to communication errors or specific module malfunctions can help you identify the suspect module.
• Check Power and Ground: Verify that the suspect module is receiving proper power and ground. Use a multimeter to check the voltage at the module’s power and ground pins. Refer to the vehicle’s wiring diagram to identify the correct pins.
• Inspect Module Connectors: Inspect the module’s connectors for any signs of damage, corrosion, or loose connections. Clean the connectors with an electronic cleaner and ensure they are securely attached.
• Test Module Functionality: If possible, use the Autel diagnostic tool to perform functional tests on the suspect module. These tests can help you determine if the module is responding correctly to commands.
• Consider Module Replacement: If all other troubleshooting steps fail, the module itself may be faulty. Consider replacing the module with a known good unit to see if the issue is resolved.

2.5. Software and Firmware Solutions

Software and firmware issues can also contribute to Autel error code 20708. Follow these steps to address potential software-related problems:

• Update Autel Software: Ensure that your Autel diagnostic tool is running the latest software version. Software updates often include bug fixes and compatibility improvements that can resolve communication errors.
• Reinstall Software: If updating the software does not resolve the issue, try reinstalling the software from scratch. This can help eliminate any corrupted files or configuration errors.
• Check Compatibility: Verify that the Autel diagnostic tool is compatible with the vehicle’s make, model, and year. Incompatible software can cause communication errors and prevent the tool from functioning correctly.
• Contact Autel Support: If you’ve exhausted all other troubleshooting steps, contact Autel’s technical support for assistance. They may be able to provide additional guidance or identify specific issues with the tool.

By following this detailed troubleshooting guide, you can systematically identify and resolve Autel error code 20708. Remember, CARDIAGTECH.NET is committed to providing you with the diagnostic tools and support you need to excel in automotive repair.

3. Advanced Techniques for Resolving Autel Error Code 20708

Once you’ve exhausted the basic troubleshooting steps, it’s time to delve into more advanced techniques for resolving Autel error code 20708. These methods require a deeper understanding of automotive electronics and diagnostic procedures.

3.1. Using an Oscilloscope for CAN Bus Diagnostics

An oscilloscope is an invaluable tool for diagnosing CAN bus issues. It allows you to visualize the electrical signals on the CAN bus, providing insights into communication problems that a multimeter alone cannot reveal.

• Understanding CAN Bus Waveforms: Familiarize yourself with the typical CAN bus waveforms. A healthy CAN bus signal should exhibit distinct high and low voltage states, with sharp transitions between them.
• Identifying Signal Degradation: Use the oscilloscope to look for signs of signal degradation, such as rounded corners, reduced amplitude, or excessive noise. These issues can indicate problems with the CAN bus wiring, connectors, or terminators.
• Detecting Collisions and Errors: The oscilloscope can also help you detect data collisions and communication errors on the CAN bus. These events can disrupt communication and lead to error code 20708.
• Isolating Faulty Nodes: By probing the CAN bus signals at various points in the network, you can isolate faulty nodes that are causing communication problems. This can help you pinpoint the exact source of the issue.

3.2. Advanced ECU Programming and Reflashing

In some cases, Autel error code 20708 may be caused by corrupted or outdated ECU software. Advanced ECU programming and reflashing techniques can help resolve these issues.

• Understanding ECU Programming: ECU programming involves rewriting the software that controls the vehicle’s engine, transmission, and other systems. This can be necessary to fix bugs, improve performance, or add new features.
• Using J2534 Pass-Thru Devices: J2534 pass-thru devices allow you to reprogram ECUs using the vehicle manufacturer’s software. This is the preferred method for ensuring compatibility and avoiding potential issues.
• Following Proper Procedures: ECU programming can be risky if not done correctly. Always follow the vehicle manufacturer’s recommended procedures and use a stable power supply to prevent interruptions during the programming process.
• Checking for Updates: Before reflashing an ECU, check for available software updates from the vehicle manufacturer. These updates may include bug fixes or improvements that can resolve communication errors.

3.3. Network Topology Analysis

Understanding the vehicle’s network topology is crucial for diagnosing complex communication issues. Network topology refers to the arrangement of ECUs and communication buses within the vehicle.

• Obtaining Network Diagrams: Obtain network diagrams from the vehicle manufacturer or a reputable online source. These diagrams show the connections between ECUs and the types of communication buses used (e.g., CAN, LIN, MOST).
• Identifying Communication Paths: Use the network diagrams to trace the communication paths between the Autel diagnostic tool and the suspect ECU. This can help you identify potential points of failure in the network.
• Checking Gateway Modules: Gateway modules act as bridges between different communication buses. If a gateway module is malfunctioning, it can disrupt communication and lead to error code 20708.
• Isolating Network Segments: By disconnecting network segments one at a time, you can isolate the faulty segment that is causing the communication issue. This can help you narrow down the problem to a specific ECU or wiring harness.

3.4. Data Logging and Analysis

Data logging involves recording the communication between the Autel diagnostic tool and the vehicle’s ECUs. Analyzing this data can provide valuable insights into communication problems.

• Using Data Logging Features: Many Autel diagnostic tools have built-in data logging features that allow you to record communication data.
• Analyzing Communication Patterns: Analyze the data logs to identify patterns of communication errors, such as timeouts, checksum errors, or invalid data.
• Identifying Faulty Messages: Look for specific messages that are consistently failing to transmit or receive correctly. This can help you pinpoint the source of the communication issue.
• Comparing to Known Good Data: Compare the data logs to known good data from a similar vehicle. This can help you identify deviations from the norm and pinpoint potential problems.

3.5. Checking Ground Connections

Proper grounding is essential for reliable communication in automotive electronic systems. Poor ground connections can cause noise, interference, and communication errors.

• Locating Ground Points: Locate the ground points for the suspect ECU and other related modules. These ground points are typically located on the vehicle’s chassis or body.
• Checking Resistance: Use a multimeter to check the resistance between the ground point and the vehicle’s battery negative terminal. The resistance should be as close to zero ohms as possible.
• Cleaning Ground Connections: Clean any corroded or dirty ground connections with a wire brush or sandpaper. Apply a thin layer of dielectric grease to prevent future corrosion.
• Adding Additional Grounds: If the ground connections are weak or unreliable, consider adding additional ground wires to improve the grounding.

By mastering these advanced techniques, you can tackle even the most challenging cases of Autel error code 20708. Remember, CARDIAGTECH.NET is dedicated to providing you with the advanced tools and knowledge you need to excel in automotive diagnostics.

4. Preventing Autel Error Code 20708: Best Practices

Preventing Autel error code 20708 is just as important as knowing how to resolve it. By following best practices, you can minimize the risk of encountering this error and ensure a smoother diagnostic process.

4.1. Regular Software and Firmware Updates

Keeping your Autel diagnostic tool’s software and firmware up to date is crucial for preventing communication errors. Updates often include bug fixes, compatibility improvements, and new features that can enhance the tool’s performance.

• Enable Automatic Updates: Configure your Autel diagnostic tool to automatically check for and install updates. This ensures that you always have the latest software and firmware.
• Check for Updates Regularly: Even if you have automatic updates enabled, it’s a good idea to manually check for updates periodically. This can help you catch any updates that may have been missed.
• Read Release Notes: Before installing an update, read the release notes to understand what changes have been made. This can help you identify any potential issues or compatibility concerns.
• Back Up Your Data: Before performing an update, back up your diagnostic data and settings. This ensures that you can restore your tool to its previous state if something goes wrong.

4.2. Proper Tool Maintenance and Storage

Proper maintenance and storage can significantly extend the life of your Autel diagnostic tool and prevent communication errors.

• Clean the Tool Regularly: Clean the tool’s screen, buttons, and connectors regularly with a soft, lint-free cloth. This prevents dirt and debris from interfering with the tool’s operation.
• Store the Tool in a Safe Place: Store the tool in a safe, dry place when not in use. Avoid exposing the tool to extreme temperatures, humidity, or direct sunlight.
• Protect the Screen: Protect the tool’s screen from scratches and damage by using a screen protector.
• Check Cables and Connectors: Regularly check the tool’s cables and connectors for signs of damage, such as frayed wires, bent pins, or corrosion. Replace any damaged cables or connectors to ensure a solid connection.

4.3. Following Correct Diagnostic Procedures

Following correct diagnostic procedures is essential for preventing communication errors and ensuring accurate results.

• Read the Vehicle’s Manual: Before performing any diagnostic procedures, read the vehicle’s manual to understand the correct procedures and specifications.
• Use the Correct Cable and Connector: Use the correct cable and connector for the vehicle being diagnosed. Using the wrong cable or connector can damage the tool or the vehicle’s ECU.
• Select the Correct Vehicle: On the Autel diagnostic tool, select the correct vehicle make, model, and year. This ensures the tool uses the appropriate communication protocols and diagnostic routines.
• Follow Step-by-Step Instructions: Follow the step-by-step instructions provided by the Autel diagnostic tool. This helps prevent errors and ensures that the diagnostic procedures are performed correctly.

4.4. Ensuring Stable Power Supply

A stable power supply is crucial for preventing communication errors during diagnostic procedures. Fluctuations in voltage can disrupt communication and damage the tool or the vehicle’s ECU.

• Use a Battery Support Unit: Use a battery support unit to maintain a stable voltage during diagnostic procedures. This prevents voltage drops that can occur when the vehicle’s electrical system is under load.
• Check Battery Voltage: Before starting any diagnostic procedures, check the vehicle’s battery voltage. If the voltage is low, charge the battery or use a jump starter to provide additional power.
• Avoid Using Accessories: Avoid using accessories that can draw power from the vehicle’s electrical system during diagnostic procedures. This includes headlights, air conditioning, and audio systems.

4.5. Regular Training and Skill Development

Regular training and skill development are essential for staying up-to-date with the latest diagnostic techniques and preventing errors.

• Attend Training Courses: Attend training courses offered by Autel or other reputable organizations. These courses can help you learn new diagnostic techniques and improve your troubleshooting skills.
• Read Technical Publications: Read technical publications, such as service manuals and diagnostic guides, to stay up-to-date with the latest information.
• Participate in Online Forums: Participate in online forums and communities to share knowledge and learn from other technicians.
• Practice Regularly: Practice your diagnostic skills regularly to maintain proficiency and prevent errors.

By following these best practices, you can significantly reduce the risk of encountering Autel error code 20708 and ensure a smoother, more efficient diagnostic process. Remember, CARDIAGTECH.NET is here to provide you with the tools, knowledge, and support you need to excel in automotive diagnostics.

5. Real-World Case Studies: Resolving Autel Error Code 20708

Examining real-world case studies can provide valuable insights into how to effectively resolve Autel error code 20708. These examples illustrate common scenarios and the troubleshooting steps that led to successful resolutions.

5.1. Case Study 1: BMW E90 FRM Module Communication Failure

Scenario: A technician was attempting to diagnose a BMW E90 with malfunctioning headlights and power windows. The Autel diagnostic tool displayed error code 20708 when trying to communicate with the Footwell Module (FRM).

Troubleshooting Steps:

1. Preliminary Checks: The technician verified that the vehicle’s battery was fully charged and that the Autel diagnostic tool was running the latest software version.
2. CAN Bus Diagnostics: The technician used a multimeter to check for shorts and opens in the CAN bus wiring. The CAN bus resistors were also tested and found to be within the correct range.
3. FRM Module Inspection: The technician inspected the FRM module’s connectors for signs of corrosion or damage. The connectors were cleaned with an electronic cleaner and reconnected.
4. Power and Ground Check: The technician verified that the FRM module was receiving proper power and ground. The voltage at the module’s power and ground pins was within the specified range.
5. Software Reflashing: The technician suspected that the FRM module’s software may be corrupted. Using a J2534 pass-thru device and the BMW ISTA software, the technician reflashed the FRM module with the latest software version.

Resolution: After reflashing the FRM module, the Autel diagnostic tool was able to communicate with the module without error code 20708. The headlights and power windows were functioning correctly.

5.2. Case Study 2: Mercedes-Benz C-Class ECU Communication Issue

Scenario: A technician was attempting to diagnose a Mercedes-Benz C-Class with engine performance issues. The Autel diagnostic tool displayed error code 20708 when trying to communicate with the Engine Control Unit (ECU).

Troubleshooting Steps:

1. Preliminary Checks: The technician verified that the vehicle’s battery was fully charged and that the Autel diagnostic tool was running the latest software version.
2. CAN Bus Diagnostics: The technician used an oscilloscope to examine the CAN bus waveforms. The waveforms appeared to be normal, indicating that the CAN bus system was functioning correctly.
3. ECU Connector Inspection: The technician inspected the ECU’s connectors for signs of corrosion or damage. The connectors were cleaned with an electronic cleaner and reconnected.
4. Ground Connection Check: The technician suspected that a poor ground connection may be causing the communication issue. The technician located the ECU’s ground point and checked the resistance between the ground point and the vehicle’s battery negative terminal. The resistance was found to be high, indicating a poor ground connection.
5. Ground Point Cleaning: The technician cleaned the ECU’s ground point with a wire brush and applied a thin layer of dielectric grease to prevent future corrosion.

Resolution: After cleaning the ECU’s ground point, the Autel diagnostic tool was able to communicate with the ECU without error code 20708. The engine performance issues were resolved after further diagnosis and repair.

5.3. Case Study 3: Volkswagen Golf ABS Module Communication Failure

Scenario: A technician was attempting to diagnose a Volkswagen Golf with ABS warning lights. The Autel diagnostic tool displayed error code 20708 when trying to communicate with the ABS module.

Troubleshooting Steps:

1. Preliminary Checks: The technician verified that the vehicle’s battery was fully charged and that the Autel diagnostic tool was running the latest software version.
2. CAN Bus Diagnostics: The technician used a multimeter to check for shorts and opens in the CAN bus wiring. The CAN bus resistors were also tested and found to be within the correct range.
3. ABS Module Connector Inspection: The technician inspected the ABS module’s connectors for signs of corrosion or damage. The connectors were cleaned with an electronic cleaner and reconnected.
4. Power and Ground Check: The technician verified that the ABS module was receiving proper power and ground. The voltage at the module’s power and ground pins was within the specified range.
5. ABS Module Replacement: The technician suspected that the ABS module itself may be faulty. The technician replaced the ABS module with a known good unit.

Resolution: After replacing the ABS module, the Autel diagnostic tool was able to communicate with the module without error code 20708. The ABS warning lights were cleared, and the ABS system was functioning correctly.

5.4. Case Study 4: Ford F-150 PCM Communication Issue

Scenario: A technician was attempting to diagnose a Ford F-150 with engine misfires. The Autel diagnostic tool displayed error code 20708 when trying to communicate with the Powertrain Control Module (PCM).

Troubleshooting Steps:

1. Preliminary Checks: The technician verified that the vehicle’s battery was fully charged and that the Autel diagnostic tool was running the latest software version.
2. CAN Bus Diagnostics: The technician used an oscilloscope to examine the CAN bus waveforms. The waveforms appeared to be normal, indicating that the CAN bus system was functioning correctly.
3. PCM Connector Inspection: The technician inspected the PCM’s connectors for signs of corrosion or damage. The connectors were cleaned with an electronic cleaner and reconnected.
4. Software Compatibility Check: The technician suspected that the Autel diagnostic tool may not be fully compatible with the Ford F-150’s PCM. The technician checked the Autel website for compatibility information and found that a software update was available.
5. Software Update: The technician updated the Autel diagnostic tool’s software to the latest version.

Resolution: After updating the Autel diagnostic tool’s software, the technician was able to communicate with the PCM without error code 20708. The engine misfires were resolved after further diagnosis and repair.

These case studies demonstrate that Autel error code 20708 can be caused by a variety of factors, including software issues, wiring problems, and faulty modules. By following a systematic troubleshooting approach and using the appropriate diagnostic tools, technicians can effectively resolve this error and restore vehicle functionality. Remember, CARDIAGTECH.NET is committed to providing you with the tools, knowledge, and support you need to excel in automotive diagnostics.

6. Choosing the Right Autel Tool for Your Needs

Selecting the appropriate Autel diagnostic tool is essential for effectively diagnosing and resolving automotive issues, including error code 20708. Autel offers a range of tools, each with its unique features and capabilities. Understanding these differences will help you choose the tool that best suits your needs and budget.

6.1. Autel MaxiSYS Series

The Autel MaxiSYS series represents the high-end of Autel’s diagnostic tool lineup. These tools are designed for professional technicians and offer comprehensive diagnostic capabilities, advanced features, and extensive vehicle coverage.

• MaxiSYS MS906BT: The MS906BT is a versatile and powerful diagnostic tool that offers a wide range of features, including advanced diagnostics, bi-directional control, coding, and adaptations. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.
• MaxiSYS MS908S Pro: The MS908S Pro is Autel’s flagship diagnostic tool, offering the most comprehensive features and capabilities. It includes advanced diagnostics, coding, programming, J2534 pass-thru programming, and extensive vehicle coverage. The MS908S Pro is designed for experienced technicians who require the most advanced diagnostic tool available.
• MaxiSYS Elite II: The MaxiSYS Elite II is a high-performance diagnostic tool that offers advanced features, including J2534 pass-thru programming, coding, and adaptations. It features a fast processor, a large display, and a user-friendly interface.

6.2. Autel MaxiCOM Series

The Autel MaxiCOM series offers a balance of performance and affordability, making them a popular choice for both professional technicians and advanced DIYers.

• MaxiCOM MK808BT: The MK808BT is a versatile and affordable diagnostic tool that offers a wide range of features, including diagnostics, bi-directional control, and special functions. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.
• MaxiCOM MK906 Pro: The MK906 Pro is an advanced diagnostic tool that offers a comprehensive set of features, including diagnostics, bi-directional control, coding, and adaptations. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.

6.3. Autel MaxiCheck Series

The Autel MaxiCheck series is designed for specific diagnostic tasks, such as TPMS, ABS, and SRS. These tools are ideal for technicians who specialize in these areas or who need a dedicated tool for specific tasks.

• MaxiCheck MX808: The MX808 is a versatile and affordable diagnostic tool that offers a wide range of features, including diagnostics, bi-directional control, and special functions. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.
• MaxiCheck Pro: The MaxiCheck Pro is an advanced diagnostic tool that offers a comprehensive set of features, including diagnostics, bi-directional control, coding, and adaptations. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.

6.4. Autel IM Series

The Autel IM series is designed for key programming and immobilizer functions. These tools are ideal for locksmiths, automotive technicians, and security specialists.

• Autel IM508: The IM508 is a versatile and affordable key programming tool that offers a wide range of features, including key programming, immobilizer functions, and diagnostics. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.
• Autel IM608 Pro: The IM608 Pro is an advanced key programming tool that offers a comprehensive set of features, including key programming, immobilizer functions, diagnostics, and ECU programming. It supports a broad range of vehicle makes and models and comes with a wireless Bluetooth VCI for convenient connectivity.

6.5. Key Considerations When Choosing an Autel Tool

When choosing an Autel diagnostic tool, consider the following factors:

• Vehicle Coverage: Ensure that the tool supports the vehicle makes and models that you will be working on.
• Features and Capabilities: Choose a tool that offers the features and capabilities that you need, such as diagnostics, bi-directional control, coding, programming, and special functions.
• Budget: Determine your budget and choose a tool that offers the best value for your money.
• Ease of Use: Select a tool that is easy to use and has a user-friendly interface.
• Customer Support: Choose a tool from a reputable manufacturer that offers excellent customer support.

By carefully considering these factors, you can choose the Autel diagnostic tool that best suits your needs and budget. Remember, CARDIAGTECH.NET is here to provide you with the tools, knowledge, and support you need to excel in automotive diagnostics.

7. The Future of Automotive Diagnostics with Autel

The automotive industry is constantly evolving, with new technologies and systems being introduced every year. Autel is committed to staying at the forefront of automotive diagnostics, developing innovative tools and solutions to meet the challenges of the future.

7.1. Advancements in Diagnostic Technology

Autel is investing heavily in research and development to create new diagnostic technologies that will improve the accuracy, efficiency, and effectiveness of automotive repairs. Some of the key areas of focus include:

• Artificial Intelligence (AI): Autel is using AI to develop diagnostic tools that can automatically identify problems, suggest solutions, and provide guidance to technicians.
• Cloud-Based Diagnostics: Autel is developing cloud-based diagnostic platforms that allow technicians to access diagnostic data, software updates, and technical support from anywhere in the world.
• Augmented Reality (AR): Autel is exploring the use of AR to overlay diagnostic information onto the vehicle, providing technicians with a more intuitive and efficient way to perform repairs.
• Remote Diagnostics: Autel is developing remote diagnostic tools that allow technicians to diagnose and repair vehicles from a remote location. This can be particularly useful for servicing vehicles in remote areas or for providing support to technicians in the field.

7.2. The Role of Autel in Electric Vehicle (EV) Diagnostics

Electric vehicles are becoming increasingly popular, and Autel is committed to providing technicians with the tools and knowledge they need to diagnose and repair these vehicles. Autel is developing diagnostic tools that can:

• Read EV-Specific Diagnostic Trouble Codes (DTCs): Autel’s diagnostic tools can read DTCs related to the EV’s battery, motor, and charging system.
• Monitor Battery Health: Autel’s diagnostic tools can monitor the EV’s battery health, providing information on the battery’s state of charge, voltage, and temperature.
• Perform Battery Management System (BMS) Resets: Autel’s diagnostic tools can perform BMS resets, which are necessary after replacing the EV’s battery.
• Diagnose Charging System Issues: Autel’s diagnostic tools can diagnose issues with the EV’s charging system, including the charging port, charging cable, and onboard charger.

7.3. Autel’s Commitment to Training and Support

Autel is committed to providing technicians with the training and support they need to use their diagnostic tools effectively. Autel offers a variety of training resources, including:

• Online Training Courses: Autel offers online training courses that cover a wide range of diagnostic topics.
• In-Person Training Seminars: Autel hosts in-person training seminars at various locations around the world.
• Technical Support: Autel provides technical support via phone, email, and online chat.
• Online Forums: Autel hosts online forums where technicians can share knowledge and ask questions.