It seems a weird setup but that relay output provides power to 6 engine
related circuits, the largest gauge wire of which goes back to the ECU
itself. One powers the AFM or in this case MAF.

Mark

Mike S wrote:
> At 03:50 PM 4/16/2008, neil N wrote...
>
>> I guess the simple question is, as per the diagram, do 3/86 and 2
>> actually connect to the relay?
>
> No. The diagram is just showing the internal connections on the relay
> panel - those terminals are probably intended for use with a different
> vehicle and/or engine, and definitely with a different relay.
>
> Based on the small section of the diagram shown, I'd guess that is the
> load reduction relay. Terminal 30 is battery +. The ECU brings terminal
> 5/86a high to remove power from unnecessary components during cranking,
> so the starter gets more power.
>