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Forum LockedPassenger Footwell Flooded - TCM Fried - ABS too?

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veedub02 View Drop Down

Joined: 05-Dec-2007
Location: Nashville, TN
Online Status: Offline
Posts: 95
  Quote veedub02 Quote  Post ReplyReply Direct Link To This Post Topic: Passenger Footwell Flooded - TCM Fried - ABS too?
    Posted: 19-Aug-2012 at 16:28
So the dreaded sunroof drain clogged during a rainstorm that left us with over 2 inches in a couple hours. More than 2 inches ended up in the passenger footwell, but I didn't notice it until AFTER I tried to start the car. So... I pulled the seat, lifted the carpet, and WOW! I've never seen so much water!

The TCU was completely submerged and the box was full of water. I put the TCU and the connector in rice to try to dry it out and proceeded to dry out the rest of the car as well.

So - one question is - what else could flood if 2-3 inches of water get into the passenger footwell and under the passenger seat? Driver's side is dry.

After a day of drying out I reconnected the TCM and I think it's shot - I can get codes to clear, but a bunch of codes come back as soon as I start the car. I've gotten just about every other system to return no codes, but the airbag controller is only intermittently communicating.

I disconnected and reconnected the clock spring to try to clear the N95 code I've been getting - that seemed fine, so I'm wondering if there's a controller for the airbags in the passenger footwell/seat area.

On the TCM - the fact that I can talk to it and clear the codes and then new codes when I start the car means the TCM itself may be bad, but the connector could be okay, right?

I just opened the TCM case and it's definitely corroded and there's 1 part that's 'loose' - a little black thing that I may actually be able to re-solder since it's not super close to other stuff.

Anyway - what I'm wondering is if this all sounds like replacing the TCU is all it needs. If I need to buy a bunch more stuff I need to make some decisions.

Here are the codes that are left so far - my notebook keeps locking up so I haven't been able to pull ALL the module codes - the major ones have been checked and these are what is left after starting the car.

Sunday, 19 August 2012, 06:51:41:45139
Control Module Part Number: 3B0 927 156 T
Component and/or Version: AG5 01V 4.0lWR8 USA 1819
           Software Coding: 01112
            Work Shop Code: WSC 13622
                      VCID: 3701188C0643
5 Faults Found:
18237 - Pressure Control Valve 4 (N218): Open or Short to Ground
        P1829 - 35-10 -   - - Intermittent
18232 - Pressure Control Valve 3 (N217): Open or Short to Ground
        P1824 - 35-00 -   -
18227 - Pressure Control Valve 2 (N216): Open or Short to Ground
        P1819 - 35-00 -   -
18223 - Pressure Control Valve 1 (N215): Short to Plus
        P1815 - 35-00 -   -
17147 - Shift Solenoid 3 (N90): Circuit Failure
        P0763 - 35-10 -   - - Intermittent

I got the airbag ones to clear, actually, but then the module wouldn't talk to the VCDS the next time I tried to run the 'Auto Scan' then the notebook blue screened on me. Ugh. Here are the codes it had before I got them to clear.

VCDS-Lite Version: Release 1.1
Sunday, 19 August 2012, 06:54:33:45139
Control Module Part Number: 1C0 909 605 C
Component and/or Version: 0C AIRBAG VW61 04   0001
           Software Coding: 12355
            Work Shop Code: WSC 00028
                      VCID: 243BDFC0A7D5
3 Faults Found:
00588 - Airbag Igniter; Driver Side (N95)
        32-10 - Resistance too High - Intermittent
01312 - Powertrain Data Bus
        37-10 - Faulty - Intermittent
01299 - Diagnostic Interface for Data Bus (J533)
        49-10 - No Communications - Intermittent
-- 2002 W8
-- 1987 BMW 325i Convertible
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VancouverW8 View Drop Down

Joined: 15-Aug-2008
Location: Vancouver, BC
Online Status: Offline
Posts: 48
  Quote VancouverW8 Quote  Post ReplyReply Direct Link To This Post Posted: 27-Aug-2012 at 22:31
I realize this doesn't help you at all, but quick question:

Did you need to pull the seat to get at the TCM or is it accessible without?
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