Ok

So, we have a good circuit until we get to the N16 module . This is Base Module . It is over by the other modules on the passenger side firewall, engine compartment. It has 4 fuses ..check each one.

Also, I suspect a possible ground problem and that is why I asked for engine ground, but you keep using the #1 of 38 pin..I don't want you to do that..my test are very SPECIFIC and have logic that you don't understand, so please follow them as I write them..read them twice if you must.

So, check the modules fuses and also check those Brown ground wires on the chassis.

Also, go back to the post where I listed the criteria for AIR . You will not get a pump until those are met and that info is transferred to the N3/1. The BM is powered by fuse 6 and the modules internal circuits are protected by those 4 10A fuses, so they need to be checked next.

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A Dalton