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Traction Control Auto Off Mod
2 Attachment(s)
This Mod installs a relay circuit that turns Traction control OFF when you start
your car. Why? With a modified super charged car the Ford TCS can pull fuel under boost and can lean your motor into damage. Tuners can turn TCS OFF as a default but you can't turn it back on. Some also give your info center constant errors... Thus this relay mod. It also leaves TCS fully operable; push the button and it's back on. Limitations of the Mod. If your car won't start, each time you go from Run to Start, TCS will change status. If you turn the key to Accessory, then turn TCS OFF. Then start your car and TCS will be back on. ( you had to work for that one ) Highlights: Circuit is cold except when key is in start. Easy wiring. Cheap. Traction control system is not disabled. Correcting the start logic problems quickly got complicated and expensive. I felt it wasn't worth it. Anytime you go from off to start the logic will be correct. The TCS button still functions. If you've had a bad start just push the button if the status is not right. That being said, if you start your car properly, TCS will be off. Items needed: 12V relay, 2 wire splices, Wire, 4 mounting lugs for the relay. Larger pdf drawing attached http://sdunsmuir.net//Public/TCSTimer/TCS-Solenoid.jpg Not wanting to re-invent the wheel I copied TacoBill's tutorial on how to get to the center console. Thanks Bill! Unscrew the shift knob by grasping right below the silver washer at the base of the knob (otherwise the whole boot will start to twist). http://img.photobucket.com/albums/v6...l/IMG_1835.jpg Once unscrewed, lift up the boot trim ring (it un-snaps pretty easily). Remove the knob/boot assembly and set aside. http://img.photobucket.com/albums/v6...l/IMG_1837.jpg http://img.photobucket.com/albums/v6...l/IMG_1838.jpg Remove the 2 screws at the base of the center armrest. http://img.photobucket.com/albums/v6...l/IMG_1844.jpg From here on out, use care when dealing with all the plastic stuff to avoid scratches, cracks, etc. Lift up the forward section of the console where the shifter is. http://img.photobucket.com/albums/v6...l/IMG_1840.jpg Then unsnap the rear section where the cup holders are. http://img.photobucket.com/albums/v6...l/IMG_1842.jpg Carefully lift the center armrest console out. Raising the e-brake as high as it will go will help. As you see in the pic, I placed a rag at the forward section of the console to avoid scratching. http://img.photobucket.com/albums/v6...l/IMG_1845.jpg Once the armrest console is out, its time to remove both left and right sail panels adjacent to the center console. Simply grasp the lower section and pull straight back toward the rear. http://img.photobucket.com/albums/v6...l/IMG_1848.jpg http://img.photobucket.com/albums/v6...l/IMG_1846.jpg This part is a bit of a pain unplug the 2 wiring harnesses that are behind the A/C and rear defroster switches. Tip: The plug behind the defroster has a gray lever. A release button must be depressed before attempting to raise (or lower - in some models it's installed upside down. see photos) the gray lever all the way up to release the plug. The A/C has a release button only. http://img.photobucket.com/albums/v6...l/IMG_1862.jpg http://img.photobucket.com/albums/v6...l/IMG_1856.jpg http://img.photobucket.com/albums/v6...l/IMG_1860.jpg Just to make us nuts some models have the connector installed upside down. http://sdunsmuir.net//Public/TCSTimer/DSC00210.JPG http://img.photobucket.com/albums/v6...l/IMG_1861.jpg Remove the (6) 7mm bolts (3 each side) that holds the center console to the dash. I removed my GT 12V plug too; not sure if I needed to, but it was simple enough. http://img.photobucket.com/albums/v6...l/IMG_1852.jpg Carefully pull away the center console from the dash (you can leave the A/C knobs on). Note the center tab on the console thats under the dash. Unplug the 3 wiring harnesses from the top of the console, they're all push button release type. http://img.photobucket.com/albums/v6...l/IMG_1854.jpg http://img.photobucket.com/albums/v6...l/IMG_1863.jpg Finally, the (4) bolts that secure the Shaker head unit can now be accessed. They are also 7mm bolts, same as the other (6) removed earlier. http://img.photobucket.com/albums/v6...l/IMG_1867.jpg Edit: Willie suggested using fuse 20 in the passenger side foot well Smart Junction Box if you don't want to dig behind the radio. Fuse 20 is the other end of the RED/BLK Radio wire this will go to Terminal (85) on the relay. Some have placed the relay here in the foot well and only run a single wire to the TCS Switch. Thanks Willie! http://sdunsmuir.net//Public/TCSTimer/DSC00264.JPG Add the wire with an Mini Add a Fuse. http://sdunsmuir.net//Public/TCSTimer/addfuse.jpg If you didn't run the wire as above. Pull the Radio unit forward, reach in back and release the large power connector. The release tab is located in the center of the connector. Press down and pull back. http://sdunsmuir.net//Public/TCSTimer/DSC00217.JPG On the back of the connector find the and Red/Blk ( Hot in start only ). Using a quick tap connector splice the RED/BLK (START) this wire will go to Terminal (85) on the relay. http://sdunsmuir.net//Public/TCSTimer/DSC00253.JPG Moving to the wires on the TCS switch (passenger side). http://sdunsmuir.net//Public/TCSTimer/DSC00213.JPG http://sdunsmuir.net//Public/TCSTimer/DSC00214.JPG On the back of the TCS switch connector,using a quick tap connector, splice the WHT/PNK (TCS Signal) This wire will go to terminal (30) on the relay. http://sdunsmuir.net//Public/TCSTimer/DSC00255.JPG Route wires to exit in passenger footwell. Loosen large bolt to the right of bracket and use as grounding point, black wire. Tighten bolt back down. Attach wires to relay as follows. Terminals (86) & (87) On Relay to Ground ( I daisy chained (86) & (87) ) Terminal (85) to Radio RED/BLK (Car in Start) (Or Add a fuse @ 20 SJB) Terminal (30) to TCS Switch WHT/PNK (TCS Signal) (I know it looks like it says 87 over the blue wire... look at the next photo) http://sdunsmuir.net//Public/TCSTimer/DSC00246.JPG http://sdunsmuir.net//Public/TCSTimer/DSC00247.JPG Make everything neat. http://sdunsmuir.net//Public/TCSTimer/DSC00256.JPG Reconnect Radio connector and reinstall head unit. Reinstall screws in head unit. Bring center console up, reconnect Info center, power port, and TCS plugs Put center console in place reconnect A/C and rear defroster switches. Now when you start your car, TCS off will be lit. A push of the button and it's back in service. :nice: |
Steve any part numbers on that relay and where to aquire it?
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Most excellent write up. :nice:
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Originally Posted by DavidM
(Post 1078413)
Steve any part numbers on that relay and where to aquire it?
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Great deal dude, thanks for taking the time! The relay looks like a standard 12v bosch relay.
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wow i gotta do this when the weather gets better out!!!
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Thanks for the info
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Steve , thanks man , this is something I'm definitely going to do ...
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Fantastic write up but I prefer to drive with the traction control off.
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:wonder:
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:lol: Maybe he meant "on". :screwy: :dunno: :grin:
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Nice write-up!
However, to keep things even simpler, just remember to push Traction Control OFF when you want to push the car especially since it has a blower. Alternatively, don't drive the supercharged car in bad weather. :) |
Fantastic write up mate! I have my TC disabled via the Predator tuner and the message center shows "Check Traction Control" when I first start the car so I have hit the reset button on the dash to clear it. Of course, DiabloSport is totally unresponsive when asked about it...what ever. I do like this mod though, but wow having to take the car apart to do it cleanly....ugh. Still though, a great mod and excellent write up.
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Originally Posted by metroplex
(Post 1078769)
just remember
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You could devise a preflight checklist.
"Key On, Traction Control OFF, Shaker 500 ON, starter ON..... VROOM" |
you are the man dude, i always wanted my own Traction Control Chimp!!!:cheers:
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Originally Posted by poldrv
(Post 1078710)
Fantastic write up but I prefer to drive with the traction control off.
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Originally Posted by metroplex
(Post 1078862)
You could devise a preflight checklist.
"Key On, Traction Control OFF, Shaker 500 ON, starter ON..... VROOM" |
Quick question. You say under boost and TCS kicks in, the engine my run lean. When the TCS kicks in, does the engine not only cut fuel, but also reduces air intake by closing the throttle body? The same as the gas pedal pulsing on older cars with TCS. So how does the engine run lean? Im just trying to figure this out..
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it only cuts fuel... less fuel more air = way lean...
someone correct me if im wrong |
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