I have been searching for the module for the traction control, for some reason my has disabled and traction control is on at all times, hard button does nothing, I have made no changes to the roll stability or off road controls. If anyone know which module I need to find and check to see what was disabled, would you please post me a link! Thank You to anyone in advance for the help


2020 F150 SCREW 4x4, 5.0, XLT Sport

 

There is not a separate Traction Control Module. T/C is controlled by the ABS module. If the switch is not functioning you have an issue with the switch or the wiring.

From the Workshop Manual

Traction Control

The ABS module continuously monitors and compares the rotational speed of the drive wheels in relation to the non-driven wheels. When the drive wheels begin to spin faster than the non-driven wheels, the ABS module modulates brake pressure to the appropriate brake calipers by opening and closing the appropriate solenoid valves inside the HCU while the hydraulic pump motor is activated. At the same time, the ABS module calculates how much engine torque reduction is required to eliminate the wheel slip and sends this torque reduction message to the GWM over the HS-CAN2 which relays the message to the PCM over the HS-CAN1. The ABS module also sends a traction event message to the GWM over the HS-CAN2 which relays this message to the IPC over the HS-CAN3. When the PCM receives the torque reduction message, it adjusts engine timing and decreases fuel injector pulses to reduce the engine torque to the requested level. When the IPC receives the traction event message, it flashes the stability-traction control indicator (sliding car icon).

Once the driven wheel speed returns to the desired speed, the ABS module returns the solenoid valves in the HCU to their normal position, deactivates the hydraulic pump motor and stops sending the traction event and torque reduction messages. The PCM returns engine timing and fuel injectors to normal operation and the IPC extinguishes the stability-traction control indicator (sliding car icon). Once vehicle speed exceeds 100 km/h (62 mph), traction control is accomplished only through the PCM torque control.

The traction control system can be disabled by the driver using the stability-traction control switch. This is independent of ABS which cannot be disabled by the driver. The traction control switch is hard-wired to the IPC, when the driver presses the traction control switch, the switch sends a ground signal to the IPC. The IPC responds by illuminating the stability-traction control disabled indicator (sliding car OFF icon) and by sending a message to the GWM over the HS-CAN3. The GWM relays this message to the ABS module over the HS-CAN2. The ABS module takes no further action in regards to traction control until the driver presses the switch again in the same ignition cycle or until the ignition is cycled from OFF to ON. For additional information on disabling the traction control feature, refer to Disabling AdvanceTrac.

The ABS module disables traction control if there are any wheel speed sensor or solenoid valve Diagnostic Trouble Codes (DTCs) present in the ABS module. Traction control is also disabled if there is a communication error between the ABS module and the PCM. When traction control is disabled, the ABS module sends a message to the GWM over the HS-CAN2. The GWM relays this message to the IPC over the HS-CAN3 to illuminate the stabilitytraction control indicator (sliding car icon).

Disabling AdvanceTrac

AdvanceTrac is controlled by the stability-traction control switch in the following manner:

• Momentarily pressing the switch disables only traction control, ESC and RSC remain enabled.
• Pressing the switch and holding it pressed for more than 5 seconds with vehicle speed under 56 km/h (35 mph) disables traction control and ESC, RSC remains enabled.
• When vehicle speed exceeds 56 km/h (35 mph) after the switch was pressed and held for more than 5 seconds, traction control and ESC are enabled but with a higher intervention threshold. RSC remains enabled.
• Pressing the switch twice enables traction control and ESC both with a higher intervention threshold. RSC remains enabled.
• Pressing the switch after one or more features have been disabled enables all 3 features.

Switching the transfer case to 4WD low locked disables all 3 features; traction control, ESC and RSC.

 

thank you, for the quick response, my problem, I cant explain why, but the Trac control will not disengage at all, button on dash is nonresponsive, have you seen this issue before??

 

Not a common problem. I would perform a DTC scan with FORScan or a diagnostic scan tool to see if there are any issues that have not initiated an IPC message.

As I said before, it is likely the switch or the wiring. Have you had the center console out for any reason?

Here is the pinout for that connector (MY 2016 but I don't think this has changed).

 

I have already tried that, not giving any DTC at all pointing in the direction ( only one pointing towards a light out, which is disabled with my aftermarket headlight system ), I do thank you for the response, I will try and check the switch connection, even though dash has never be apart,

Thank You
RFTech1968

 

The switch just closes the circuit momentarily when pressed and the IPC monitors the circuit. If you want to test the circuit to and from the switch just momentarily short across the connector terminals.

See Post #4 for the connector pinout. I edited the wrong post. Duh!

 

Would you post the code/s you have to be sure something is not misunderstood.
There are P codes, B codes, C codes, and U codes.
P codes are mainly for engine malfunctions unless involved with a fault reflected from another part of the system..
With the right tool such as Forscan, each module can be tested.
It can show the codes associated with the issue, what did not work, and will clear code, if the module passes the system tests.

 

my apologies Bluegrass I did not see your post til this morning, I have zero DTC for this issue and the switch is not responding to press. I don't want to disable this function, but I do wish that it work correctly. I found out it was not functioning when I needed trac control off so I could get a trailer up and incline without locking in 4x4. Have been looking for the correction ever since, any help getting this corrected would be most appreciated

 

We need to get a code for the issue, first.
It points to a likely cause and eliminates tearing into things and possibly causing more issues and confusion.
.
52 Merc provided the circuit description of operation in reply #2. Notice the engine is not involved.
P codes don't always set for body operations because it's not an engine issue but a drive train issue.
You are signaling an operation independent of the engine.
A P fault code will not show up, only a notification that you see on te screen, or you would not know a fault it present, for some time.
This is why a diagnostic tool capable of reading body codes is needed.
.
BTW, if your Dash can be put in Engineering Mode, and stepped to the DTC fault data Display, it will show you there is one or more codes set but not what the code is. If none set it will say 0. If any number is set, this display will go to zero when all is fixed or tested all test pass, with a tool.
Best we can do for you at the present time.
Good luck.

 

Good day Gentlemen, sorry for the delay on replys, I am posting this now because I have resolved my issues with the traction control. I have uploaded a few pics so you can see where and how it was resolved. Before anyone attempts these changes to your truck, please take clean, clear pictures of the areas you change. I made these changes to make mine function normal, not hot rodding, just full functioning. Anyone making changes to these keep in mind if you have the 5 drive mode selector, be ware the wrong combination will block it out and not allow the drive modes to work. Make only one change at a time. I spent 6 hours correcting some one else handy work, I did buy the truck used and for about $10,000 under book value due to this.. These also only work from the Year model of 2015-2020