Yes, that is the 150A. I think it should have power constantly so checking for voltage on both sides will tell you if it is blown or not (one side hot to the battery will always have power, regardless of the state of the link).

 

Lord I answered this in back in 2016 lol.

 

Tested the alternator, reads 12.13V when running. Same reading at fuseable link.
The battery light randomly went out, retested and it showed 14.55V.
Battery light is back on it reads 12V again.

bad alternator?

 

It’s probably a bad alternator. Take your voltage reading with your positive lead right at the alternator main terminal and the negative on the alternator case. If you read it at the battery, and you have poor connections or wires, a good alternator could read low. Also if the field wire is broken, the alternator will not get excited until you rev it a little, in which case a good alternator would read low at idle (until it produces enough voltage on it’s own to excite itself).

 

Pulled the alternator and it’s branded VALEO with a LAND ROVER tag. The tag looks OEM but google tells me valeo isn’t the original

 

Valeo is (was) the OEM supplier.

 

There's a difference it seems in OEM supplier and Genuine Equipment ... the genuine equip is $1200, the valeo is priced at $350. The "supplier" and "genuine" has always confused me