Need Help: Short Circuit to Ground, Backlighting

ck_M3 · 03-04-2023, 12:31 AM

Hi All,

I wired in the seat-emblem lights from ModEmporium, and seem to have shorted the backlighting. So far, only the lights around the center console, armrest, and door lock aren't lighting up. I've pulled up stats and attempted procedures in ISTA and Tool32, but can't seem to understand how to get the module to turn back on. Already checked the fuses, and had to replace one in the FEM because the terminals were dark, but the line didn't break.

Resetting in Tool32 fails because that specific module has been turned off, although all other interior lights work just fine (doors, iDrive, dash, footwells, roof buttons, everything else). I haven't reached any max attempts on the circuit according to Tool32, as it errors in "255" (unit is shut-off) during reset of the counter.

Anyone know what this procedure means in ISTA?

"After a repair has been completed, deactivation must be rest through a diagnostic job in the procedure. A terminal change (Terminal 15 > Terminal R > Terminal 30 > Terminal R > Terminal 15) must then be performed and the light must be switched on so that the corresponding output can be reactivated".

What is or how do you perform:
(Terminal 15 > Terminal R > Terminal 30 > Terminal R > Terminal 15)

- FEM 8042C5 Backlighting Terminal 58 has short circuit to ground

Much appreciated!

Spongeb0bRoundPants · 05-05-2023, 03:14 AM

were you able to resolve this? i’ve been having the same issue and can’t figure it out

ck_M3 · 05-06-2023, 02:03 PM

Quote:

Originally Posted by Spongeb0bRoundPants

were you able to resolve this? i’ve been having the same issue and can’t figure it out

Unfortunately not yet, it seems like a series of switching the ignition on/off, while locking with the key fob? The Terminal R is the confusing part since our keys are fobs

Danlnyc88 · 05-06-2023, 09:48 PM

Uhhh after reading this I think I'm gonna pass on this mod. I have it too. Just never got around to installing it.

ck_M3 · 05-09-2023, 05:02 PM

Woo! There’s a shop down in SD that fixed this with ISTA. Don’t know what he did different when I attempted.

Would recommend Steve’s Beemer & Benz off of Banks St.

For now, I disconnected these seat badges, will figure out a better way to tap into a fuse in the trunk. This was way too risky.

03-04-2023, 12:31 AM	#1
ck_M3 Private First Class 61 Rep 118 Posts Drives: 2017 F80 M3 Join Date: Jun 2021 Location: SoCal iTrader: (1)	Need Help: Short Circuit to Ground, Backlighting Hi All, I wired in the seat-emblem lights from ModEmporium, and seem to have shorted the backlighting. So far, only the lights around the center console, armrest, and door lock aren't lighting up. I've pulled up stats and attempted procedures in ISTA and Tool32, but can't seem to understand how to get the module to turn back on. Already checked the fuses, and had to replace one in the FEM because the terminals were dark, but the line didn't break. Resetting in Tool32 fails because that specific module has been turned off, although all other interior lights work just fine (doors, iDrive, dash, footwells, roof buttons, everything else). I haven't reached any max attempts on the circuit according to Tool32, as it errors in "255" (unit is shut-off) during reset of the counter. Anyone know what this procedure means in ISTA? "After a repair has been completed, deactivation must be rest through a diagnostic job in the procedure. A terminal change (Terminal 15 > Terminal R > Terminal 30 > Terminal R > Terminal 15) must then be performed and the light must be switched on so that the corresponding output can be reactivated". What is or how do you perform: (Terminal 15 > Terminal R > Terminal 30 > Terminal R > Terminal 15) - FEM 8042C5 Backlighting Terminal 58 has short circuit to ground Much appreciated!
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05-05-2023, 03:14 AM	#2
Spongeb0bRoundPants i do not have a title 72 Rep 307 Posts Drives: e92 335i, f82 M4 Join Date: Nov 2017 Location: Nevada iTrader: (1) Garage List 2015 BMW M4 [9.83] 2007 BMW 335i [10.00]	were you able to resolve this? i’ve been having the same issue and can’t figure it out
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05-06-2023, 09:48 PM	#4
Danlnyc88 Captain 441 Rep 624 Posts Drives: 2020 M4 Comp, 2017 Macan Turbo Join Date: Jun 2019 Location: Orange County iTrader: (1)	Uhhh after reading this I think I'm gonna pass on this mod. I have it too. Just never got around to installing it.
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05-09-2023, 05:02 PM	#5
ck_M3 Private First Class 61 Rep 118 Posts Drives: 2017 F80 M3 Join Date: Jun 2021 Location: SoCal iTrader: (1)	Woo! There’s a shop down in SD that fixed this with ISTA. Don’t know what he did different when I attempted. Would recommend Steve’s Beemer & Benz off of Banks St. For now, I disconnected these seat badges, will figure out a better way to tap into a fuse in the trunk. This was way too risky.
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