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R34 Tcs & Slip Light

Sleepy_R34

By Sleepy_R34,
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Sleepy_R34 Explorer

Sleepy_R34

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Recently my TCS off and Slip light turned on when i started my car one day, after a few days it went off, but a few days after that it came back on.

After doing a few searches, it seems to be a common problem with the R34's if the coilpacks need replacing, but after bridging the consult port and getting the error code, i am getting a code 17 which in its definition states: "ABS-TCS Control Unit - Throttle control unit detects malfunction in the system. (open throttle sensor harness etc). TCS/ABS control unit detects malfunction. Which im not quite sure what action to take to fix it?

Im pretty sure that if it were the coilpacks it would be giving a 21 error code, so before forking out the $600 odd dollars(that could go to a lot more useful mods that actually increase performance), does this mean there is something else wrong with my car?

Physically driving the car there doesnt seem to be anything wrong with it, i might be imagining a slight decrease in power, but nothing drastic, and the traction control is definately turned off (which isnt suprising given the TCS OFF and SLIP light) but other then that it drives normal.

Any help would be appreciated guys

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https://www.sau.com.au/forums/topic/388049-r34-tcs-slip-light/
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  • 2 weeks later...
Sleepy_R34 Explorer

Sleepy_R34

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Just an update, the issue has finally been fixed.

Whitey at EFI figured out that the actual traction control unit was faulty, it was no longer doing its start up sequence of closing and opening the throttle which then threw the lights up.

Was lucky enough to have another r34 in the workshop that just took his throttle body/tcs off to install a forward facing plenum, gave him a quick call and agreed to let it go for $70

I ended up just switching the traction control motors (instead of the whole throttle body) was fairly straight forward, some of the screws are hard to get by, and have to be careful not to strip the old things, but other then that, no dramas

Anyways, i just thought i'd share, if you are having the same problem, might be worth your while to check if this is the problem before you go fork out $500 odd dollars for some new coilpacks which is the most common suggested fix out there.

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