- #How to diagnose a mercedez benz ezs vs esl verification
- #How to diagnose a mercedez benz ezs vs esl code
Some of the most common reasons are listed below:Īll of the above can cause memory loss to the EIS module and it cannot be repaired or re-flashed using the Mercedes STAR diagnostic system. It is very unfortunate but also a very common problem as there are many reasons as to why these units are failing - most are due to human error. This will stop the vehicle from starting. If the EIS unit becomes faulty, the 'Turn & Start' function will be de-activated and the module will be locked for security purposes. Incorrect programming by an incompetent garage/mechanic.Key sometimes doesn't turn in the Mercedes EIS.Key turns in the Mercedes EIS but the ignition lights on the instrument cluster doesn't switch on.Not releasing the ESL (Electronic Steering Lock) when the key is Inserted.
#How to diagnose a mercedez benz ezs vs esl verification
Each time the key is inserted, the EIS system will check the key and then ask the ESL (Electronic Steering Lock) system for verification that it accepts the correct key is being used. The vehicle will instantaneously carry out a sequence of test handshakes to ensure the correct key has been inserted.
#How to diagnose a mercedez benz ezs vs esl code
The key has a sequential code to ensure the vehicle is not stolen. It is more like a plastic lego-brick with what looks like an infra-red panel at the face of it which is inserted into the EIS socket on the dash. The Mercedes EIS (Electronic Ignition Switch) system is great in theory, the hardware being the switch is like a small socket in the dash to insert your key into - only, it is not a traditional looking key. We can test your ignition module (EIS), Electronic Steering Lock (ESL) and your keys
You insert the key in the ignition of your Mercedes but nothing hapens, You cant turn the key, or maybe you Can you hear a juddering noise from the Electronic Steering Lock (ESL)? Don't worry, we can help.