What's this wire on the negative?

[alias23]

I guess asking this question proves I shouldn't think of performing an install myself!

Planning future weight reduction... what's the two wires going to the negative on the battery? I kind of expected one but there's two that then connect together before connecting to the battery terminal.

[ramjet]

Not knowing the Exige, but one may be a body earth strap with the other going to the vehicle electrics?

[M4rk]

Is it possible it is a direct connection to the jump connector under the front access cover?  I suppose if that were the case there would be one off the positive too, so I'm probably wrong.

[LotusPilot]

The thick black cable connects to the main chassis  (earth) post located on the left-side of the engine bay.

The braided cable connects from the battery negative to the ECU mounting plate - adjacent to and forward of the battery within the boot compartment.

Section MV11 of the Service Notes for detail.

 

Edited July 2, 2017 by LotusPilot