Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable for BMW User Manual

Introduction

This manual provides comprehensive instructions for the Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable. This adapter is specifically designed to facilitate the connection between BMW vehicles equipped with a 20-pin OBD1 diagnostic port and modern OBD2 diagnostic scanners. It enables various diagnostic functions, ensuring seamless communication for vehicle analysis and maintenance.

Important Considerations Before Use

• Scanner Power Supply: Before purchasing and using, confirm that your diagnostic scanner has a built-in power supply. The 20-Pin OBD1 port on BMW vehicles does not provide power, meaning your scanner will not turn on if it relies solely on the vehicle's diagnostic port for power.
• Adapter Function: This product is an adapter cable ONLY, not a diagnostic scanner. Its primary function is to enable proper communication between your existing OBD2 diagnostic scanner and your BMW's OBD1 system. The availability of specific diagnostic features (e.g., ECU coding, bidirectional control) depends entirely on the capabilities of your diagnostic scanner and the vehicle's support for those functions.

Setup Instructions

Connecting the Adapter Cable

Follow these steps to correctly connect the Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable:

1. Locate the 20-Pin Socket: Identify the 20-pin diagnostic socket in your BMW. This port is typically located under the hood, often near the engine or fuse box.
2. Connect to Vehicle: Plug the 20-pin male end of the Autel adapter cable firmly into the vehicle's 20-pin diagnostic socket.
3. Connect to Scanner: Connect your OBD2 diagnostic scanner's 16-pin female connector to the 16-pin female end of the Autel adapter cable. Ensure a secure connection at both ends.

Operating Instructions

Once the adapter cable is securely connected between your BMW and the diagnostic scanner, power on your diagnostic scanner. The adapter cable will facilitate the communication between the scanner and the vehicle's onboard diagnostic system. You can then proceed with diagnostic functions as per your scanner's instructions, such as:

• Reading and clearing diagnostic trouble codes (DTCs).
• Performing full system diagnostics.
• Executing bidirectional controls (if supported by your scanner and vehicle).
• ECU coding (if supported by your scanner and vehicle).

The cable is engineered for stable data transmission without interference, ensuring reliable diagnostic operations. Always refer to your specific diagnostic scanner's user manual for detailed operational procedures.

Compatibility

Vehicle Compatibility

This Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable is compatible with the following BMW models equipped with a 20-pin OBD1 diagnostic port:

• E28
• E30
• E32
• E34
• E36
• E38
• E39
• E46
• E52
• E53
• R50
• R52
• R53

Compatible Autel Scanners

This adapter cable is designed to work seamlessly with various Autel diagnostic scanners, including but not limited to:

• MK808S, MK808S PRO, MK808BT, MK808BT PRO
• MP900BT, MP900TS
• MS906 PRO, MS906 PRO-TS
• Elite II PRO, Ultra Lite, Ultra
• MS909, MS919
• MaxiSYS Ultra

Care and Maintenance

To ensure the longevity and optimal performance of your Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable, follow these maintenance guidelines:

• Storage: Store the cable in a clean, dry environment, away from direct sunlight, excessive heat, and extreme cold. Avoid tightly coiling or bending the cable sharply.
• Cleaning: If necessary, gently wipe the cable and connectors with a soft, dry, lint-free cloth. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the cable's insulation and connectors.
• Handling: Always grasp the connector ends when plugging or unplugging the cable. Avoid pulling directly on the cable itself, as this can strain the internal wiring and lead to damage.
• Inspection: Periodically inspect the entire length of the cable and both connectors for any signs of wear, cuts, fraying, or damage to the insulation. Discontinue use immediately if any damage is observed.

Troubleshooting

Common Issues and Solutions

• Scanner Not Powering On:

  Issue: Your diagnostic scanner does not power on when connected via the adapter cable.

  Solution: The 20-Pin OBD1 port on BMW vehicles does not provide power. Ensure your diagnostic scanner has its own built-in power supply or is connected to an external power source if required. This adapter only facilitates data communication.

• No Communication with Vehicle:

  Issue: The diagnostic scanner fails to establish communication with the vehicle's systems.

  Solution:

  1. Verify that both the 20-pin male connector and the 16-pin female connector are securely seated.
  2. Confirm your specific BMW model is listed in the compatibility section of this manual.
  3. Ensure your diagnostic scanner is compatible with the adapter and the vehicle's specific diagnostic protocols.
  4. Check for any error messages displayed on your diagnostic scanner and consult its user manual for specific communication troubleshooting steps.

• Intermittent Connection:

  Issue: The connection between the scanner and vehicle is unstable or drops intermittently during diagnostic procedures.

  Solution: Ensure the cable is not bent, twisted, or strained during use. Inspect both connectors for any debris, corrosion, or physical damage that might impede a stable connection. While the cable is designed for stable transmission, external factors can affect connection integrity.

Product Specifications

Warranty and Customer Support

Warranty Information

The Autel 20-Pin to 16-Pin OBD2 Diagnostic Adapter Cable is backed by a 1-year warranty. This warranty covers defects in materials and workmanship from the date of original purchase. Additionally, a new replacement or full refund policy is available within 30 days of purchase.

Customer Support

For any questions, technical assistance, or warranty claims regarding your Autel adapter cable, please do not hesitate to contact Autel customer support. 24/7 technical support is available to assist you.

You can reach us via email at: Autelchoice@outlook.com