about guided test key


Have you replaced any parts such as the shifter module or the valve body and conductor plate?? 

The engine control unit ECU in this case Mercedes referes to it as ME is not allowing the engine to start. Can you go into the transmission menu and check the engine start is enabled or not? I think there is another "safety" module not giving the green light to the ME to enable start. There are many safety features in that car that can do this. Shifter module is also one of them. Brake light switch can also prevent start enable. I would look these items and diagnose them as well.

Plain text

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type='1 A I'> <li> <dl> <dt> <dd> <h2 id='jump-*'> <h3 id> <h4 id> <h5 id> <h6 id>
  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
  • Only images hosted on this site may be used in <img> tags.
The content of this field is kept private and will not be shown publicly.

Disclaimer: Youcanic has made every effort to assure the accuracy of the information on this page. Neither Youcanic nor its affiliates assume responsibility for any loss or damage due to any errors, omissions, lack of information. You agree to hold Youcanic free from any liability arising out of the use of any information contained within. All pictures and references to trademarks and car names are for reference only and do not imply an association with the manufacturer. Consult your owner's manual or authorized factory manuals when performing repair procedures. By entering this site, you agree to our Terms & Conditions and Privacy Polity.