Headlight issues, please opine.

[StatenEye]

Having headlight issues. Swapping them confirmed the headlights and modules are fine. This leads me to believe this is a control module issue. Is there a FRM in the car or is it replaced by the Body Control Module? In the dark right now.

https://www.realoem.com/bmw/enUS/sho...diagId=61_3207

Edit I have a 16 X5M with Adaptive LEDs.

[gwes]

Originally Posted by StatenEye

Having headlight issues. Swapping them confirmed the headlights and modules are fine. This leads me to believe this is a control module issue. Is there a FRM in the car or is it replaced by the Body Control Module? In the dark right now.

https://www.realoem.com/bmw/enUS/sho...diagId=61_3207

Edit I have a 16 X5M with Adaptive LEDs.

It was replaced by the body domain controller (BDC) in the F15 I believe.

[StatenEye]

Originally Posted by gwes

It was replaced by the body domain controller (BDC) in the F15 I believe.

Any idea of the location in the car. Thats what i was figuring.

[gwes]

Originally Posted by StatenEye

Any idea of the location in the car. Thats what i was figuring.

Should be in the passengers foot-well. You'll need to remove the side trim and pull back the carpet to get at it. Check here for instructions to access it.

[StatenEye]

Originally Posted by gwes

Should be in the passengers foot-well. You'll need to remove the side trim and pull back the carpet to get at it. Check here for instructions to access it.

Fault Code: 8041B6
Fault Explanation: :Headlight range adjustment (LWR): A real
system
Fault Code: 8041BA
Fault Explanation: :Adaptive headlights (AHL) system is defective
Fault Code: 8041F9
Fault Explanation: : Driver module headlights (TMS) right: headlight
range adjustment (LWR) Error
Fault Code: 8044B9
Fault Explanation: :Front light control unit right, flashing function:
Implausible state / Front light control unit right: Implausible state
flashing function / Driver Module headlight (TMS3) right: Implausible
behavior flashing function
Fault Code: 8044BB
Fault Explanation: :LED Head Light Module (LHM2) right: Implausible
state low beam / Front light control unit right, low beam: Implausible
state / Front light control unit right: Implausible state low beam
Fault Code: D90D2F
Fault Explanation: : Driver module headlights (TMS) left: Missing LIN
slave
Fault Code: D90D32
Fault Explanation: : Driver module headlights (TMS) right: Missing
LIN slave

✗

Jul 11 2019 - X5 M (F85), Build Year 2016

[gwes]

Originally Posted by StatenEye

Fault Code: 8041B6
Fault Explanation: :Headlight range adjustment (LWR): A real
system
Fault Code: 8041BA
Fault Explanation: :Adaptive headlights (AHL) system is defective
Fault Code: 8041F9
Fault Explanation: : Driver module headlights (TMS) right: headlight
range adjustment (LWR) Error
Fault Code: 8044B9
Fault Explanation: :Front light control unit right, flashing function:
Implausible state / Front light control unit right: Implausible state
flashing function / Driver Module headlight (TMS3) right: Implausible
behavior flashing function
Fault Code: 8044BB
Fault Explanation: :LED Head Light Module (LHM2) right: Implausible
state low beam / Front light control unit right, low beam: Implausible
state / Front light control unit right: Implausible state low beam
Fault Code: D90D2F
Fault Explanation: : Driver module headlights (TMS) left: Missing LIN
slave
Fault Code: D90D32
Fault Explanation: : Driver module headlights (TMS) right: Missing
LIN slave

✗

Jul 11 2019 - X5 M (F85), Build Year 2016

I'd download ISTA+ (if you don't have it already) and see what it calculates as a action plan on this, it can probably guide you through the full diagnosis. Given it is showing an issue on the other light as well, maybe a LIN bus problem?

[StatenEye]

Originally Posted by gwes

I'd download ISTA+ (if you don't have it already) and see what it calculates as a action plan on this, it can probably guide you through the full diagnosis. Given it is showing an issue on the other light as well, maybe a LIN bus problem?

I ran the car with no headlight hence all the codes for the left light before. Also had and interior light unplugged in the footwell. Here are the codes now.

CAS
Fault Code: 8041B6
Fault Explanation: :Headlight range adjustment (LWR): A real
system
Fault Code: 8041BA
Fault Explanation: :Adaptive headlights (AHL) system is defective
Fault Code: 8044D7
Fault Explanation: :Interior light layering LIN: Number Layering
slaves incorrect / Interior light layering FI-LIN 1: Number Layering
slaves incorrect
Fault Code: D90D32
Fault Explanation: river module headlights (TMS) right: Missing
LIN slave
Fault Code: D91DE6
Fault Explanation: :CAN message, status light outside front
electronics one law (ST LP EX FE 1 RH): Timeout
Fault Code: D91DFD
Fault Explanation: :CAN message, status light outside front
electronics 2 law (ST LP EX FE 2 RH): Timeout

[gwes]

Originally Posted by StatenEye

I ran the car with no headlight hence all the codes for the left light before. Also had and interior light unplugged in the footwell. Here are the codes now.

CAS
Fault Code: 8041B6
Fault Explanation: :Headlight range adjustment (LWR): A real
system
Fault Code: 8041BA
Fault Explanation: :Adaptive headlights (AHL) system is defective
Fault Code: 8044D7
Fault Explanation: :Interior light layering LIN: Number Layering
slaves incorrect / Interior light layering FI-LIN 1: Number Layering
slaves incorrect
Fault Code: D90D32
Fault Explanation: river module headlights (TMS) right: Missing
LIN slave
Fault Code: D91DE6
Fault Explanation: :CAN message, status light outside front
electronics one law (ST LP EX FE 1 RH): Timeout
Fault Code: D91DFD
Fault Explanation: :CAN message, status light outside front
electronics 2 law (ST LP EX FE 2 RH): Timeout

It's looking like you probably have a short or a cut wire somewhere, you'll need to check the pins on the connector, I'm not sure what the voltages should be for each, maybe someone else can chime in. ISTA+ should also give you that info for diagnosing though.

[StatenEye]

Originally Posted by gwes

It's looking like you probably have a short or a cut wire somewhere, you'll need to check the pins on the connector, I'm not sure what the voltages should be for each, maybe someone else can chime in. ISTA+ should also give you that info for diagnosing though.

I tried to mess around with the BDC connections to no avail. Light is still out. Appt with the stealer booked for monday at 915am. Preparing my anus for a massacre. Expecting a 5k or more bill, anything under that and ill celebrate.

[gwes]

Originally Posted by StatenEye

I tried to mess around with the BDC connections to no avail. Light is still out. Appt with the stealer booked for monday at 915am. Preparing my anus for a massacre. Expecting a 5k or more bill, anything under that and ill celebrate.

Hopefully they can just test the wires individually to figure out what's going on.

[turboawd]

Any mice get in your car? Inspect wires?

[StatenEye]

Originally Posted by turboawd

Any mice get in your car? Inspect wires?

Not that I can tell, wires look mint from what I can see. Everyone thinks its a bad wire and it probably is. I just don't have the knowledge to diagnose. Someone was in my passengers seat, we were chatting he stepped out, i put the car into gear and once I accelerated the errors popped up. This was after ive been driving the car for an hour or so, parked for 20 mins we got in the car i drove the person about 200 feet or so, stopped chatted and then he got out... errors.

[TOPEC]

the wires should go from the module out the firewall of the passenger side and into the engine bay, then the wires will split n go to its respective areas in the engine bay. all the wires should be covered up in wire looms, so it'll be hard to see where the damage is if it is indeed damaged wires. easiest way is to start from the headlight n trace the wires back to the firewall.

[rbrace16]

Originally Posted by StatenEye

Not that I can tell, wires look mint from what I can see. Everyone thinks its a bad wire and it probably is. I just don't have the knowledge to diagnose. Someone was in my passengers seat, we were chatting he stepped out, i put the car into gear and once I accelerated the errors popped up. This was after ive been driving the car for an hour or so, parked for 20 mins we got in the car i drove the person about 200 feet or so, stopped chatted and then he got out... errors.

Hi did you manage to find the problem?

[StatenEye]

Originally Posted by rbrace16

Hi did you manage to find the problem?

Hey,

I couldn't pinpoint myself. I wound up being a faulty fuse box in the rear believe it or not. Replace it and never had an issue again. I had to go to my guy who's a BMW expert, that opened his own shop.