A common issue encountered when coding 8A keys for PSA Smart vehicles: the keyless system (Keyless Entry) not activating after programming using AUTEL MaxiIM IM508/IM608 or other programmers.
The root cause often lies in differences within the key’s EEPROM data.
In this guide, we’ll walk through how to identify and solve this problem.
Guide:
Access the Programmer Menu
Start by entering the programmer menu on your Autel device.
Navigate to Transponder Section
Go to the transponder menu and select “Transponder Reading.” Use the automatic detection feature to read the key. Ensure the key is placed inside the device.
Read the Key Data
The device will read the key and display its ID, key type etc. Then, enter the “Edit” section to read the EEPROM data stored inside the key.
Analyze the EEPROM
Check data line 160. Focus on the first two bytes (first two numbers).
If the value is 01, the key is Type 2.
For the key to function properly, the original key must read 01. This ensures healthy operation of the keyless system.
Real-World Example: Opel Combo 2023
Let’s consider an example using an Opel key (for a 2023 Opel Combo). When reading this key, the data starts with C6. If you were to try programming another remote with this configuration, the remote would not work and would essentially become locked or non-responsive.
Why? Because the PSA system expects specific EEPROM values. A mismatch – such as seeing a different header instead of the required 01 – prevents the keyless entry from engaging.
The Solution
To solve this issue, you must ensure that the key’s EEPROM data matches the required Type 2 standard (starting with 01). If the key shows a different value (like C6), it will need to be reprogrammed or replaced with a compatible unit. Always verify the first two bytes of the EEPROM before finalizing the coding process.
Conclusion
Keyless entry failures after coding PSA Smart keys are often due to hidden EEPROM differences. By using an Autel programmer to inspect the first two bytes of the EEPROM, you can quickly determine if the key is compatible. Remember: 01 = Type 2 = functional keyless entry. Anything else, like a C6 header, will lead to failure.
