Testing MFRU multi function relay unit

[charliex]

It looks like it runs through from the rear ve, 20amp fuse. one 20 amp relay, inertia switch, immobiliser, splice then the pump.

2.0 from ve to the splice, then 1.0 to the pump. I'm assuming its 2.0mm conductor size, so that'd be 41 amps max, 5 ohms per km, 1.0 is 16 amps, 21 ohms per km

I can't find the stock 160 amperage, but i'd imagine its around 7-15amp just like the 190/255 walboro's.

With the wiring length, you ought to only see a voltage drop around 1% - 2% at 15 amps, so that'd mean it'd have to be a loss at the immobiliser, inertia switch or main relay.

[Thomasio]

Mine turned out to be a bad starter.