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Subject: 2002 M3 TCU Problems Author: adsr : member since June, 2009 : 61 posts Posted on: 2009-06-27 18:38:43

Hi,

I recently installed a tcu unit off a 2005 car into mine using all the guides on here and also the following diagram to convert my 26pin plug into a 54pin plug to match up to the tcu:

26PIN BLACK CAR PLUG--------------------------------54PIN ULF PLUG


PIN 3--------------------------------------------------PIN 36 KL31 Ground
PIN 4--------------------------------------------------PIN 17 KL30 +
PIN 5--------------------------------------------------PIN 35 KLR Ignition
PIN 10------------------------------------------------PIN 51 Mute
PIN 11------------------------------------------------PIN 32 TXD Pairing
PIN 14------------------------------------------------PIN 19 Mic -
PIN 15------------------------------------------------PIN 1 Mic +
PIN 19------------------------------------------------PIN 37 Speaker +
PIN 20------------------------------------------------PIN 21 Shield
PIN 22------------------------------------------------PIN 15 I Bus
PIN 25------------------------------------------------PIN 38 Speaker –
PIN 21------------------------------------------------PIN 33 Tel On


When I turn my car on there is now a red light on my widescreen monitor and when I go into the telephone menu it jst keeps saying please wait. My phone can not see the cars bluetooth either. What have I done wrong?

• 2002 M3 TCU Problems - adsr 2009-06-27 18:38:43 (606 views)
  • What is the part number of the TCU? - Brian 2009-06-28 21:36:48 (746 views)
    • Re: What is the part number of the TCU? - adsr 2009-06-29 01:13:18 (555 views)
      • Yes, I live NE of Atlanta-- in Peachtree Corners. (nt) - Brian 2009-06-29 06:48:22 (607 views)
        • Re: Yes, I live NE of Atlanta-- in Peachtree Corners. - adsr 2009-06-29 11:18:27 (580 views)
    • Re: What is the part number of the TCU? - adsr 2009-06-29 01:11:17 (636 views)
      • Confirm your TCU part number, because yours may not have Bluetooth (url) - Brian 2009-06-29 06:47:37 (635 views)
        • Re: Confirm your TCU part number, because yours may not have Bluetooth - adsr 2009-06-29 11:24:15 (647 views)
          • I am not 100% sure what the red LED means... - Brian 2009-06-29 11:39:39 (660 views)
            • Re: I am not 100% sure what the red LED means... - adsr 2009-06-29 12:17:26 (617 views)
              • You are likely hosed with that part number... - Brian 2009-06-29 16:58:04 (628 views)
                • Re: You are likely hosed with that part number... - adsr 2009-06-29 22:09:31 (647 views)