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Electrical Issues - Cluster - Tire Pressure, Door Ajar, Climate, and Radio (SJB?)

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Electrical Issues - Cluster - Tire Pressure, Door Ajar, Climate, and Radio (SJB?)

  #1  
Old 08-26-2018, 02:04 PM
Junior Member
Thread Starter
Join Date: Aug 2018
Posts: 1
Exclamation Electrical Issues - Cluster - Tire Pressure, Door Ajar, Climate, and Radio (SJB?)

A few weeks ago, while driving, my car chimed, as if I had a door open. The instrument cluster showed a (!) light, parking brake, and a door ajar light. In the information display on the instrument cluster, the TIRE PRESSURE warning displayed, as well as the DOOR AJAR. At the same time, my information display (Time) went out, as well as my radio sound, and climate control functions (No AC). While driving, everything went back to normal again. This has been intermittent on and off now for weeks.

I pulled the Smart Junction Box (SJB). It was not wet, no corroded connections. I replaced it with a junkyard SJB for the same year, make, model, and trim. Same issues after I replaced it.

Other variables:

-I just had my mechanic replace a sensor to get my AC working again, this was about 2 months ago. Also had to swap aftermarket stereo out for the factory one after my mechanic dropped my aftermarket stereo.
-I also have a remote starter with questionable wiring (purchased this way).

ANY IDEAS? Thanks!!





 
  #2  
Old 06-10-2019, 05:25 PM
Junior Member
Join Date: Jun 2019
Posts: 2
Default similar issues

I've had similar issues, my fuel millage would go to zero km to empty, my speedometer would stop working then if you let off the gas it would stall while driving.. took it to a mechanic and they replaced the computer and dash cluster still the same issues. Took it to a Ford dealership and they have had the car for a month and called me the other day and said they can't figure it out and are talking with the Ford engineers.. They don't know what it is causing this to happen..
 
  #3  
Old 06-10-2019, 07:16 PM
Senior Member
Join Date: Jun 2010
Posts: 9,164
Default

For what it is worth,

Fords do not like any kind of add on items, period !!

It would help if we knew what year your vehicle is.
A lot of folks are not aware of the problems add on items bring. This includes radios, remote start attachments and including some simple things like adapters for cell phones, charging points for other appliances etc. Some of these add on items will work for a while and then crazy unexplainable things start to happen. If you are experiencing some crazy things with your vehicle and have or are using any kind of electrical device not original equipment on the vehicle one sure way to verify this is to disconnect /remove the add on and allow the vehicle to adapt to the removal of a possible problem device. This problem has become epidemic and is driving techs up the wall looking for causes of problems. The amount of electronics in today's vehicles has made them more susceptible to stray electrical charges.
 
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