slowboy2.3
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- #1
This is gonna be a long read, just an fyi...
For reference purposes, I have a late production Mustang (no BCMB), so I didn't have the option of just enabling the ambient lighting zones. I didn't see any different BCM models when researching this mod, so I generally assumed that the only differences between the trim levels were the programming of the modules.
So far, I've made the wiring harness for the footwell lighting and have wired it directly into the BCM (in hindsight, I should've wired it into the interior wiring connector, then to the footwell lights, but that's a later me problem). The problem now is getting the lights to work. I am not getting any DTCs or errors when changing the ambient lights through myColor, so I don't believe it's an APIM configuration or GWM communications error (unless the GWM is ignoring the messages entirely, which I'm not ruling out), but since I don't have access to FDRS, it's a long shot as to what is causing the behavior.
I haven't made any changes to the BCMs AsBuilt since it's basically identical to a GT Premium's AsBuilt in regards to lighting, +/- some unknown options. I made the AL changes in the APIM, and I believe that was the only module that needed changes for AL.
Wiring this was nothing short of maddening, as I couldn't find any resources for the late production BCM wiring. So, off to buy the FDRS subscription I went. I ended up finding the correct diagrams and connector pinouts, so I purchased the necessary components to make the harness, and it has been completed. Ford did split the AL zones' wiring across two connectors (a byproduct of condensing the BCMB, I assume), and the only modification to the harness I made was to add the green pin. The ground pin is shared, and the red/blue wires were already present on the other connector.
I didn't wire for Zone 3, since the zone is not going to be used for the following purposes. I wired exclusively for Zone 1. I did test continuity on the harness before I plugged everything back in, and I did confirm the lights worked by testing them on another Mustang. No shorts or fuse pops were heard when everything was put back together, so I think I had a good start. After that, I ran out of luck, and we are here now.
The goal now is to see whether or not this is a BCM programming issue that is causing the lights not to work. I am taking the car to the dealership soon for an oil change, and I will ask if they can do some magic to get the ambient lights working. I'm not getting my hopes up since this is a very sketchy mod in terms of execution, and I won't be surprised if they refuse to look at it.
I'll post an update once I get something working. For now, it isn't causing an issue remaining plugged in, so I'll leave it alone until then.
Below is Connector C2280D (J4 on the BCM). Pin 2 is AL Zone 1's Green, and Pin 27 is AL Zone 1 Ground (might be Zone 3's ground as well, as it did not specify that on the connector diagram). Pin 27, or wire RLN44, is shared with a few other circuits, so I caution against anything drastic with that wire.
Below is Connector C2280G (J7 on the BCM). Pin 13 is AL Zone 1's Red, and Pin 15 is AL Zone 1's Blue. There is no ground pin for AL on this connector. This connector leads to the HCM, so definitely don't fudge with this one too much unless you want to do just that.
Onto the pièce de résistance, the wiring diagram for the wire itself... Pretty self explanatory... Red to red, green to green, and blue to blue. Ground is just ground. Zone 3's wiring is also in this picture, in case you want to add AL door sills. Zone 1 leads to a splice with the door lights, goes back to the interior lights connector, and then to the footwell lights.
tl;dr, ambient lighting no work, no clue why it wouldn't work, taking to dealer to hopefully have looked at but also looking for community suggestions/support
For reference purposes, I have a late production Mustang (no BCMB), so I didn't have the option of just enabling the ambient lighting zones. I didn't see any different BCM models when researching this mod, so I generally assumed that the only differences between the trim levels were the programming of the modules.
So far, I've made the wiring harness for the footwell lighting and have wired it directly into the BCM (in hindsight, I should've wired it into the interior wiring connector, then to the footwell lights, but that's a later me problem). The problem now is getting the lights to work. I am not getting any DTCs or errors when changing the ambient lights through myColor, so I don't believe it's an APIM configuration or GWM communications error (unless the GWM is ignoring the messages entirely, which I'm not ruling out), but since I don't have access to FDRS, it's a long shot as to what is causing the behavior.
I haven't made any changes to the BCMs AsBuilt since it's basically identical to a GT Premium's AsBuilt in regards to lighting, +/- some unknown options. I made the AL changes in the APIM, and I believe that was the only module that needed changes for AL.
Wiring this was nothing short of maddening, as I couldn't find any resources for the late production BCM wiring. So, off to buy the FDRS subscription I went. I ended up finding the correct diagrams and connector pinouts, so I purchased the necessary components to make the harness, and it has been completed. Ford did split the AL zones' wiring across two connectors (a byproduct of condensing the BCMB, I assume), and the only modification to the harness I made was to add the green pin. The ground pin is shared, and the red/blue wires were already present on the other connector.
I didn't wire for Zone 3, since the zone is not going to be used for the following purposes. I wired exclusively for Zone 1. I did test continuity on the harness before I plugged everything back in, and I did confirm the lights worked by testing them on another Mustang. No shorts or fuse pops were heard when everything was put back together, so I think I had a good start. After that, I ran out of luck, and we are here now.
The goal now is to see whether or not this is a BCM programming issue that is causing the lights not to work. I am taking the car to the dealership soon for an oil change, and I will ask if they can do some magic to get the ambient lights working. I'm not getting my hopes up since this is a very sketchy mod in terms of execution, and I won't be surprised if they refuse to look at it.
I'll post an update once I get something working. For now, it isn't causing an issue remaining plugged in, so I'll leave it alone until then.
Below is Connector C2280D (J4 on the BCM). Pin 2 is AL Zone 1's Green, and Pin 27 is AL Zone 1 Ground (might be Zone 3's ground as well, as it did not specify that on the connector diagram). Pin 27, or wire RLN44, is shared with a few other circuits, so I caution against anything drastic with that wire.
Below is Connector C2280G (J7 on the BCM). Pin 13 is AL Zone 1's Red, and Pin 15 is AL Zone 1's Blue. There is no ground pin for AL on this connector. This connector leads to the HCM, so definitely don't fudge with this one too much unless you want to do just that.
Onto the pièce de résistance, the wiring diagram for the wire itself... Pretty self explanatory... Red to red, green to green, and blue to blue. Ground is just ground. Zone 3's wiring is also in this picture, in case you want to add AL door sills. Zone 1 leads to a splice with the door lights, goes back to the interior lights connector, and then to the footwell lights.
tl;dr, ambient lighting no work, no clue why it wouldn't work, taking to dealer to hopefully have looked at but also looking for community suggestions/support
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. I wired for Zone 1 as that zone handles the footwell lights and door handles. Zone 3 is not used anymore on the S650 afaik unless you want to install door sill lights as part of this mod.
