Mi16 Ignition Amp/coil Wiring

[sport1901966 8]

I'm considering making a new loom for my newly installed (still work in progress) Mi16 based on the Motronic 4.1 (2-row) BX wiring. I'm starting of by drawing up a schematic of all the plugs connections etc but have come to a point of some confusion. CAPS says that the Ignition amplifier signal (from the ECU pin 1) is 'shielded and connected to ECU earth terminal number 5'. The associated wiring diagram is below:

 

 

My questions are - what does the symbol in the red circle mean?

and - what does it mean by 'shielded and connected to ECU earth terminal number 5' - connected how?

 

Thanks,

Geoff

[Anthony 1,003]

From that diagram, ECU pin 1 is connected to ignition amp pin 6.

 

That wire between the ECU and ignition amp is shielded, and the shield is earthed at the ECU end only, earthed through the same earth feeding pin 5 of the ECU.

 

Does that help?

[sport1901966 8]

From that diagram, ECU pin 1 is connected to ignition amp pin 6.

 

That wire between the ECU and ignition amp is shielded, and the shield is earthed at the ECU end only, earthed through the same earth feeding pin 5 of the ECU.

 

Does that help?

 

That is spot on thank you. I may be asking too much but do you know how that earth is physically made. I.e. Is there a wire coming off the amp signal wire sheilding?

 

Cheers for the help!

Edited January 15, 2010 by sport1901966