Thread: TCU Programming
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Old 03-06-2013, 03:32 PM   #9
Jim Murphy
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Join Date: Mar 2009
Location: Atlanta (Dunwoody), GA
Posts: 461
My Ride: 2006 E46 330Ci ZHP
Quote:
Originally Posted by Jim Murphy View Post
Trying to learn more about this issue, I first pressed the DSC button to turn it off (just the triangle light) and made a hard run. Transmission light came on and it went into the partial limp mode which I cleared. Next, I pressed the DSC button and held it down until both the triangle and brake lights came on. I again made a hard run and the transmission light came back on with the resulting partial limp mode - I cleared this.
I am told that there is a traction control module in the engine bay that I can disconnect and still drive the car. Will this do anything more than what I have already done?

Any help will be much appreciated.

TIA,
Jim


I just disconnected the module next to the master cylinder. First reaction is that the following has happened:
1. Speedometer is not working along with the MPG gauge
2. These lights are now on - traction control, brake, ABS and TPMS.

Driving is fine and the transmission shifts fine as well. The car feels a little edgy as I now have to adjust to any difference in surface grip. I can now
"peel out" from a standing start with not much throttle as both rear tires are controlled by my OS Giken LSD.
Later, after several hard run attempts I finally got the transmission light to come on and go into the partial limp mode - I stopped and cleared it.
My conclusion is that it now takes more to get the transmission light to come on. What does this mean?

Jim
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