2008 ABS/VSC/TRAC With Codes

[trf97]

On the wifes 2008 4Runner she has been getting the ABS?VSC/TRAC lights all flashing, normally just after pressing the brake pedal but at least within the first few minutes of driving. So, I finally got a Techstream cable/software and hooked it up, thinking all I would need to do is a ZPC. I did take pics of the codes that displayed before I cleared everything out and did the ZPC. Here are the codes:
C1223 - ABS Control System Malfunction
C1249 - Open Circuit in Stop Light Switch Circuit
U0073 - Control Module Communication Buss OFF
U0123 - Lost Communication with Yaw Rate Sensor Module
U0124 - Lost Communication with Lateral Acceleration Sensor Module
U0126 - Lost Communication with Steering Angle Sensor Module

From the little bit of research that I did, I believe all of this may lie within replacing the Stop Light Switch Circuit, which I think is towards the top of the brake pedal.

Does this sound right? Anything else I might want to check that might be a simple loose wire somewhere/something not plugged in?
Any help is appreciated.

 

[trf97]

Anyone???

 

[BlackWorksInc]

[MENTION=77269]trf97[/MENTION] How many of the DTCs were Current, History, and/or Pending? After clearing the DTCs, what DTCs came back? and if so what were they (Current, Pending, and/or History?)

The Stop Lamp switch may not be a bad place to start, but I'd like to try and narrow down the DTCs a bit to figure out what are the primary DTCs out of all those.

 

[trf97]

After clearing the old ones, the ones that returned were:
c1223 ABS Control System Malfunction
c1249 Open circuit in stop light switch circuit

 

[trf97]

Well...I can successfully say that after replacing the Stop Lamp Switch, under the brake pedal, all of the lights have not come back on. Got the part for just over $30 and took less then 2 minutes to take the old one off and put the new one back on.

Hope this helps someone out later in life.

 

[awdjunkies]

Well...I can successfully say that after replacing the Stop Lamp Switch, under the brake pedal, all of the lights have not come back on. Got the part for just over $30 and took less then 2 minutes to take the old one off and put the new one back on.

Hope this helps someone out later in life.

And all without having to take it in to a dealership or a mechanic. Glad you picked up a Techstream. arty: