dash lights flashing/horn blowing on F250

Submitted: Wednesday, Oct 28, 2015 at 22:50
ThreadID: 130724 Views:1329 Replies:7 FollowUps:4
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Hi there,
We were just wondering if anyone could explain what the reason could be for our dash lights and horn blowing spasmodically while the ignition is turned off??
Thank you in anticipation
Shaun and Sue
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Reply By: Crusier 91 - Thursday, Oct 29, 2015 at 09:25

Thursday, Oct 29, 2015 at 09:25
Very simple answer......................it's a Ford!
AnswerID: 592089

Reply By: disco driver - Thursday, Oct 29, 2015 at 11:09

Thursday, Oct 29, 2015 at 11:09
Out of left field I know, but is there a possibility of mice/rats or even Singapore ants getting to the wiring. They can cause much damage.

My MIL had issues similar to yours with her vehicle and inspection found chewed wiring.

Disco.
AnswerID: 592097

Follow Up By: sue and shaun - Thursday, Oct 29, 2015 at 12:07

Thursday, Oct 29, 2015 at 12:07
Thanks for the suggestion disco driver.We will check it out
Shaun and Sue
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FollowupID: 860199

Reply By: humpback - Friday, Oct 30, 2015 at 06:54

Friday, Oct 30, 2015 at 06:54
Hi Sue and Shaun firstly forget the clown who commented on your vehicle,you have a real truck not a toy truck.your problem sounds like you have issues with the alarm system,take it to an auto electrician and they will scan the truck takes a few minutes. Do yourself a favor and buy a scangauge and carry it with you and if you have any problems which you wont because you have a REAL TRUCK LOL you can plug into the computer and it will tell you of any issues.
I have had my EFY for 4 years and never had a flat tyre and it tows 25ft 4 ton caravan.
Cheers
Humpback
AnswerID: 592126

Follow Up By: vk1dx - Friday, Oct 30, 2015 at 07:05

Friday, Oct 30, 2015 at 07:05
My thoughts went to the alarm circuit when I first read the heading. Check the door switches to make sure the closed door is being detected.

Our last flat tyre was at Oran Park in 1969. And my wife changed it. Well it was her Mini!!!

REAL TRUCK. You have to be kidding. Sounds a bit egotistic to me. But boys will be boys.

Phil (chuckling)

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FollowupID: 860252

Reply By: humpback - Friday, Oct 30, 2015 at 07:11

Friday, Oct 30, 2015 at 07:11
Hey Phil your wife changed it say no more LMAO dont loose her.
Cheers
Humpack
AnswerID: 592127

Follow Up By: sue and shaun - Sunday, Nov 01, 2015 at 09:39

Sunday, Nov 01, 2015 at 09:39
Hi bumpback,
Thanks for your advice.We disconnected the battery over night and fortunately it seems to have rectified the problem
Thanks again and hopefully we will catch up on the road sometime.
Happy travels
Sue and Shaun
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FollowupID: 860327

Reply By: Slow one - Friday, Oct 30, 2015 at 10:27

Friday, Oct 30, 2015 at 10:27
Vehicle alarm also came to mind. Does the vehicle use the horn as the theft alarm or does it have it's own dedicated siren.

Before taking it to be looked at, how about doing two simple things. First of all make sure something is not moving in the vehicle cab, an example being a cushion or backrest falling down or vermin in the cab. The second thing would be to try a hard reboot by disconnecting the battery for a few minutes and resetting the ecm.

Best of luck.
AnswerID: 592133

Follow Up By: sue and shaun - Sunday, Nov 01, 2015 at 09:42

Sunday, Nov 01, 2015 at 09:42
Thanks slow one by disconnecting the battery we managed to solve the problem and have had no problems since .
Have a great day
Happy travels
Sue and Shaun
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FollowupID: 860328

Reply By: jon k - Saturday, Oct 31, 2015 at 15:01

Saturday, Oct 31, 2015 at 15:01
hi folks; I had the same problem some time past. Seems my movement sensor alarm system was being activated by a moth that liked to fly laps of the vehicle while it was locked. Try a good squirt of bug spray overnight; - worked for me.
AnswerID: 592185

Reply By: Member - Nordave - Saturday, Oct 31, 2015 at 18:39

Saturday, Oct 31, 2015 at 18:39
I have done this several times in my F250

I was the culprit by pocket pushing the red alarm button on the remote locking device.
It is activated very easily in the pocket.
I now make sure the other keys on the key ring are pushed to the back of the fob when I put it in my pocket.
Happened three times before I worked out what was happening
Of course if you have not got a remote entry fob disregard what I have said.
AnswerID: 592193

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