 | Home > Puma (Tdci) > 2010 build XS: False Traction Control warning in wet weather |
 
|
|
|
| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324  
|
Do you have any detail of the wiring mod? I've never heard of the need for anything like that before
 Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
||
8th Dec 2022 8:45am |
|
| PeeWee Member Since: 13 Apr 2017 Location: Somersetty Posts: 17  
|
I think that as built the 3rd stop light earths through the HRW but the mod is to add a short length of wire, in the rubber window seal, from the 3rd stop to the earth tag on the HRW thus ensuring an earth path if the filaments degrade.
I mentioned the mod not because I suspect that my problem is caused by it, but for “completeness”. I’ll try contacting the Service Advisor about it, even if it was six or seven years ago! Thanks, Peter |
||
|
8th Dec 2022 9:16am |
|
| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
|
Ah, ok. It's difficult to imagine how that might impact your TC system, to be honest. I can only think it's some sort of earth fault but it's a bit obscure. Perhaps try disconnecting the brake light and see if that changes the behaviour? That would at least prove, or not, a connection between the two. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
||
|
8th Dec 2022 9:19am |
|
| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6610 
|
When you say 2010 build is it a 2010 model year or a late 2010 calendar year build and so a 2011 model year? Does it have the WABCO ECU under the driver's seat (2010) or not (2011)?
Last eight characters of the VIN for a 2010 are AA123456, for 2011 BA123456 (the numbers are an example). I would remove the brake light bulb from the 3rd brake light and try it again. I think what might be happening you have a poor earth to the rear window, and turning on the HRW is causing a voltage to appear on the brake light supply. I think this suggests you have a 2011 model with the Bosch ABS system - the brake light supply is connected to the ABS modulator on the Bosch system but not with the WABCO. The ABS ECU sees a "brake pedal on" signal, but no corresponding rise in pedal pressure. So it throws an error. Maybe! Try without the 3rd brake light bulb and report back   1988 90 Td5 NAS soft top
2015 D90 XS SW |
||
|
8th Dec 2022 10:03am |
|
| PeeWee Member Since: 13 Apr 2017 Location: Somersetty Posts: 17
|
Martin,
Thanks for that. I won't go out into the fresh air just yet, but I know that the build was sometime in August 2010, the sequence is BA799xxx, it was supplied as 2011 MY. I'll let you know more when the sun has melted the frost! |
||
|
8th Dec 2022 10:15am |
|
| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6610
|
OK, as it's a 2011 the brake switch signal feedback seems the likely problem
If it is, then need to test how good the earth is to the rear door/window 1988 90 Td5 NAS soft top
2015 D90 XS SW |
||
|
8th Dec 2022 10:50am |
|
| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3643 
|
I love this forum
DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
||
|
8th Dec 2022 6:14pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
