Left Fob in bronco, now zero power to anything....

[okbob]

Searched but to no avail. Been doing some mods on the bronco the last couple of days, no issues. Been driving it off and on both days no issues. When we got home this evening I had the fob in the console, bronco in the driveway. Messed around outside for 20 min or so, got back in the bronco to pull it in the garage, starts up, pull into the garage, go into the house. I'm in the house about 5 min and go back out to get the fob and the bronco has zero power. Nothing happens when I open the door, fob doesn't operate the doors or remote start. Fordpass won't start the bronco either. Searched here, on Google and in the manual, not finding any answers. Have had it sinc 4/16 with zero issues. Thanks.

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[Ksjrb03]

Has nothing to do with the Fob. Mine hasn’t left the Bronco in months. Did any of your mods involve removing battery cables?

 

[okbob]

Has nothing to do with the Fob. Mine hasn’t left the Bronco in months. Did any of your mods involve removing battery cables?

Yes, double checked those first thing. Just went back out to get something out of the bronco and opened the driver door and all is normal................ Not a fan of electrical gremlins whatsoever. I'll update here if something else happens, thanks for the reply.

 

[Ksjrb03]

Yes, double checked those first thing. Just went back out to get something out of the bronco and opened the driver door and all is normal................ Not a fan of electrical gremlins whatsoever. I'll update here if something else happens, thanks for the reply.

Sounds like a ground issue. Double check every thing you touched if it returns!

 

[okbob]

Sounds like a ground issue. Double check every thing you touched if it returns!

Shaken and wiggled, can't make it happen again. It's my wife's daily driver, I'm sure I'll hear about it if it happens again tomorrow lol.

 

[Havoc1]

Has nothing to do with the Fob. Mine hasn’t left the Bronco in months. Did any of your mods involve removing battery cables?

That's not entirely correct.

By keeping the key (fob) in there the whole time, the vehicle sees that as it's gonna be go time any second so it keeps everything awake, thus draining battery faster than "normal". Whereas if you take it (the key) out, it actually allowes the modules to start going to sleep.

Doesn't really become an issue unless you go days without driving it but still keeps modules that would normally shut down in 30-60 mins still going.

 

[Ksjrb03]

That's not entirely correct.

By keeping the key (fob) in there the whole time, the vehicle sees that as it's gonna be go time any second so it keeps everything awake, thus draining battery faster than "normal". Whereas if you take it (the key) out, it actually allowes the modules to start going to sleep.

Doesn't really become an issue unless you go days without driving it but still keeps modules that would normally shut down in 30-60 mins still going.

Not entirely correct. I have gone weeks without driving it and the fob sitting in there. Never had a battery issue in this or previous Fords that get the exact same treatment.

 

[Havoc1]

Not entirely correct. I have gone weeks without driving it and the fob sitting in there. Never had a battery issue in this or previous Fords that get the exact same treatment.

Oh ok I forgot, I wasn't paid to work on these for 20+ years so I have zero idea how anything works. How dare I post such a thing

 

[66GT]

Shaken and wiggled, can't make it happen again. It's my wife's daily driver, I'm sure I'll hear about it if it happens again tomorrow lol.

... you mean almost-daily driver now?

 

[okbob]

... you mean almost-daily driver now?

Started up fine this morning again good to go.

 

[66GT]

Started up fine this morning again good to go.

Nice save!

 

[flip]

DM me your VIN if you want me to check VHR. Some OTAs have been loading and have created issues like this. If it is an OTA, it was likely for the BCM. I did one on my BL with FDRS and it failed to upload correctly, killed everything. Had to rerun and it finally came back.

 

[Ford Motor Company]

Searched but to no avail. Been doing some mods on the bronco the last couple of days, no issues. Been driving it off and on both days no issues. When we got home this evening I had the fob in the console, bronco in the driveway. Messed around outside for 20 min or so, got back in the bronco to pull it in the garage, starts up, pull into the garage, go into the house. I'm in the house about 5 min and go back out to get the fob and the bronco has zero power. Nothing happens when I open the door, fob doesn't operate the doors or remote start. Fordpass won't start the bronco either. Searched here, on Google and in the manual, not finding any answers. Have had it sinc 4/16 with zero issues. Thanks.

Good morning. Can you please send over a private message with your VIN and the name/location of your local Ford dealer? I would like to help get to the bottom of your Bronco's power issue.

 

[Bonnie6G]

I had mine go dark after turning it off when dropping my kids off at camp. Turned out my ground battery terminal was loose. It was still on the post, and would wiggle, but it was slid up the post a bit. I slammed it down and tightened the nut a bunch more and haven’t had the problem since.

 

[Lifeliberty]

DM me your VIN if you want me to check VHR. Some OTAs have been loading and have created issues like this. If it is an OTA, it was likely for the BCM. I did one on my BL with FDRS and it failed to upload correctly, killed everything. Had to rerun and it finally came back.

That's what i was thinking last night, like the computer resettimg or something. but doesn't the OTA happen only after the vehicle been off for a while?

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