[Tatts4278]

ok hooked up my car to ista+ says check dme main relay does anyone know the location of the relay?

[Tatts4278]

Originally Posted by Tatts4278

ok hooked up my car to ista+ says check dme main relay does anyone know the location of the relay?

nothing no one knows? Bueller Bueller

[supermarket]

Originally Posted by Tatts4278

ok hooked up my car to ista+ says check dme main relay does anyone know the location of the relay?

The DME relay is incorporated into the “integrated supply module” or “power distribution box.” It’s basically a fuse box, but it’s not designed for the fuses and relays to be replaced independently. On these materials, it’s marked as Z11:

• wiring diagram
• installation location

[Tatts4278]

Originally Posted by supermarket

The DME relay is incorporated into the “integrated supply module” or “power distribution box.” It’s basically a fuse box, but it’s not designed for the fuses and relays to be replaced independently. On these materials, it’s marked as Z11:

• wiring diagram
• installation location

that has been replaced. already. I di find out that the terminal 15 relay is in both fuse boxes as well so I'm going to replace the front engine compartment one and the truck under luggage rack one tomorrow. hopefully this solves it cause insta+ didnt say the dme was faulty just said the dme main relay wasnt getting voltage. and this just happend out of the blue one day. so. I'll give it a shot.

[Tatts4278]

Originally Posted by Tatts4278

that has been replaced. already. I di find out that the terminal 15 relay is in both fuse boxes as well so I'm going to replace the front engine compartment one and the truck under luggage rack one tomorrow. hopefully this solves it cause insta+ didnt say the dme was faulty just said the dme main relay wasnt getting voltage. and this just happend out of the blue one day. so. I'll give it a shot.

checked ista+ again. the dme is working but still getting the code 1B5302 for terminal 15n_2 no voltage. after replacing both fuse boxes no luck. not sure if I should be trying the rear electric module and the distributor in the back next. or just send out my fem at this point. with all this covid 19 lockdown going on most indie shops are closed or booked out and have all doors sealed. so you cant even know if they are telling you the truth sadly.

[Tatts4278]

Originally Posted by Tatts4278

checked ista+ again. the dme is working but still getting the code 1B5302 for terminal 15n_2 no voltage. after replacing both fuse boxes no luck. not sure if I should be trying the rear electric module and the distributor in the back next. or just send out my fem at this point. with all this covid 19 lockdown going on most indie shops are closed or booked out and have all doors sealed. so you cant even know if they are telling you the truth sadly.

took it to a different dealer it's a bad ground wire that is shorting power to the Dme.

[supden90]

Do you know what ground wire it was? I’m having the same issue. Also messages saying starter short to b+

Thanks

[Karlhankinson]

Which ground wire?

[e90ftw]

I'm getting the same code on ISTA with my buddy's 2012 F30 328i: 1B5302 Supply, terminal 15N_2: Short circuit to ground.

Anyone know which ground wire?