I have this persistent C0049 code on my 2012 F250. The "Service Advancetrac" and Traction Control lights are on as the truck thinks it has low brake fluid. The system has been flushed and I replaced the brake fluid level sender but no idea otherwise. The plug and wiring in the engine bay looks in perfect condition, so where else should I look? Does the wiring for this sensor run down into the large wiring block near the ebrake?

Thanks!

 

The term "Sub System" means anything related to the system which in this case could include wheel speed info, steering and stability control. This is a catch all code and will require all related systems to be checked out. The fact that the traction control lite is illuminated is cause to investigate that system . A good capable scan tool will most likely be necessary to troubleshoot the problem.
A heavy foot on the throttle could cause wheel spin and get into the pix if applicable.

 

I have a rather high end scan tool and it did not find any other trouble codes. So I believe the truck thinks it's low on brake fluid and therefor it's setting off the other warning lights, not vice versa.

 

Anyone?

 

I think your logic is a little faulty, but doing some extra research may help.
Not all faults will throw codes and not all codes will pinpoint faults.
What if you were to check the areas mentioned with the scan tool you have?

 

I ran a scan of all subsystems, ecu, abs brakes, steering etc. and under abs brakes this is the only fault code listed for the entire truck.

 

Here is why I suggest to do some addl research,
if there is for example a faulty wheel speed sensor that is with an intermittent problem.
It may not throw a code , but the system is picking up a problem with a temporary lost signal which is perceived as a wheel not moving,the traction control picks up this problem and it does not necessarily have to throw a code, but senses something is missing, that sub system throws the code. That is only one example and there are possibly plenty more that will require some thorough investigating to locate and pin down. IF,,, something like this is taking place now you need to use some addl equip and knowledge to find the problem. This is why you need to confirm that the sub systems are functioning as designed and this can take some time to find.
Component problems are a part of the problems, but a good portion of this type problem are caused by faulty connections. If it was as easy as check for codes ,replace the sensor and you're done that would be great, but the real world is not always that easy.

 

I have mustang 2013 v6. Struggling with the same problem. Bro, did you find any solution?