OTA update stuck - “Interrupted by another process”

[SpongeBad]

Hi all, looking to see if someone can help me get an OTA update “unstuck”.

Update 23-PU0314-DCM-LAT has regularly failed for about a week now, and each time gives me a few messages. One is on the FordPass App, which tells me the car “needs my help” and that I should refer to the screen in the car for next steps. The screen in the car just tells me that the update failed because it was “interrupted by another process”, without telling me what process. Same outcome regardless of whether I kick off the update manually or let it do it overnight.

I thought maybe my LVB was low, so I pulled the frunk panels and hooked a charger up to the LVB overnight. The charger says it’s got a full charge and no faults, and the update failed again while on the charger. I closed everything up and tried the update again right away when I knew the battery was full (in case the frunk being open was also an issue) - no change.

I have an OBD reader, so decided to look at whether there were any faults. I have three codes:

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(WARN) [19:45:20.672] DTCs in BdyCM: B1533:08-08​

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(WARN) [19:45:20.865] DTCs in BECMB: B1142:62-08​

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(WARN) [19:45:24.470] DTCs in HVAC: B162E:01-08​

The first one I could find info on. It’s the headlight switch fault. I know I’ll need to get that one fixed at some point, but other updates have installed fine, so I don’t think it’d be an issue for this one.

The second and third ones I can’t find much on. I think the second one has something to do with the start button (based on similar codes from other Fords). The third one I can’t find anything on.

I don’t know if the DTCs have anything to do with the update failure, but I feel like I’m chasing my tail here.

Any guidance anyone can offer?

* quick edit: one thing that did happen recently was I had my car in for its regular check-up and the dealer did the recall related to the parking brake cable failing. Prior to this dealer visit, I never had any issue with OTA updates failing. Could that recall repair be related somehow?

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[Logal727]

Have you turned the headlight switch to off before starting the update?

 

[SpongeBad]

Have you turned the headlight switch to off before starting the update?

Yeah, tried that. Made no difference.

 

[Logal727]

Yeah, tried that. Made no difference.

Definitely a weird one. Is anything plugged into the USB ports anywhere in the vehicle? Do you have any third party services linked to your FordPass account?

 

[SpongeBad]

Definitely a weird one. Is anything plugged into the USB ports anywhere in the vehicle? Do you have any third party services linked to your FordPass account?

I do have a dashcam and OBD adapter, but the update fails when both of those are unplugged, as well. I took a reading of the 12V battery before the most recent failure and it was at 92%. Based on everything I've seen, that's the most common reason updates fail, but I think something else must be going on this time. Sigh... maybe I'll book it in for the headlight switch and see if the dealer can get the update to kick loose at the same time.

 

[Logal727]

I do have a dashcam and OBD adapter, but the update fails when both of those are unplugged, as well. I took a reading of the 12V battery before the most recent failure and it was at 92%. Based on everything I've seen, that's the most common reason updates fail, but I think something else must be going on this time. Sigh... maybe I'll book it in for the headlight switch and see if the dealer can get the update to kick loose at the same time.

I’ve had an update fail when I was messing around with stuff in the USB port.

 

[Mach-Lee]

I do have a dashcam and OBD adapter, but the update fails when both of those are unplugged, as well. I took a reading of the 12V battery before the most recent failure and it was at 92%. Based on everything I've seen, that's the most common reason updates fail, but I think something else must be going on this time. Sigh... maybe I'll book it in for the headlight switch and see if the dealer can get the update to kick loose at the same time.

Some of the OTA updates require >95% 12V battery FYI, which takes a while. If it's not too much trouble, I'd try disconnecting the negative battery terminal (10 mm socket) for 10 minutes to reset everything in the car. You might have to drive the car a couple times afterwards before the update shows up again.

Last, make sure you manually set the parking brake and turn off the headlights right before applying the update. Do not have anything plugged into the OBD or USB ports, and make sure the frunk is closed before starting the update.

 

[SpongeBad]

Some of the OTA updates require >95% 12V battery FYI, which takes a while. If it's not too much trouble, I'd try disconnecting the negative battery terminal (10 mm socket) for 10 minutes to reset everything in the car. You might have to drive the car a couple times afterwards before the update shows up again.

Last, make sure you manually set the parking brake and turn off the headlights right before applying the update. Do not have anything plugged into the OBD or USB ports, and make sure the frunk is closed before starting the update.

Thanks Mach-Lee. I'll give it a shot when I have some time to tear the frunk apart again (assuming it doesn't magically fix itself before then).

 

[SpongeBad]

So I tried everything suggested in here, including disconnecting the 12V battery and even another "secret dance" combo involving putting the car in accessory mode, tapping the brake three times and watching for the battery light to blink on the dash and it made no difference... same update kept failing.

I had resigned myself to having to take it to the dealer when it suddenly decided to finish the update for no apparent reason one night. It has since done another update (the radio presets one) and has had no issues since. I must've accidentally sacrificed a goat to the Ford gods somewhere along the way. Hopefully one of the things the updates did is make error messages more useful, but I won't hold my breath.

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