Advertise on fullfatrr.com »

Home > Maintenance & Mods (L322) > Should I be worried by these warnings?
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
alanm_3



Member Since: 19 Feb 2011
Location: my House, unless I’m not at home, in which case I’m somewhere else.
Posts: 6723

Scotland 2017 Range Rover Autobiography SDV8 Loire Blue
Should I be worried by these warnings?

Slowly driving along the M77 due to congestion, I get loads of warnings on the dash -

1. HDC disabled
2. Transmission fault, stop safely.

Loads of yellow lights on the dash!

Pulled onto the hard shoulder and switched off and restarted - no errors!

Plugged in the IIDTool and found the followings errors stored :-

Rear diff
- 186D clutch actuator stuck

ATCM Terrain Response -
- C401 invalid data received from engine control module/ powertrain control module
- C402 invalid data received from terrain transmission control module
- C403 invalid data received from transfer case control module
- C146 invalid data received from vehicle dynamics control module


So, it seems to implicate 4 separate module, which is rather unlikely? I wonder if the "stuck clutch actuator" created all the errors?

Looking back at the cars history, I see that the car was investigated a year ago for a rear diff actuator fault which was cleared. Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Post #95291 30th Nov 2011 11:51am
View user's profile Send private message View poster's gallery Reply with quote
Googsy



Member Since: 02 Jun 2011
Location: Where men are men and sheep are nervous.
Posts: 2947

Ireland 2008 Range Rover HSE TDV8 Java Black

Battery ? Present :2008 TDV8 HSE
Gone Audi A5 2.7TDI
Gone Discovery 3 HSE
Gone Mercedes CLK
Gone Range Rover 2.5 DSE

Post #95305 30th Nov 2011 12:29pm
View user's profile Send private message View poster's gallery Reply with quote
alanm_3



Member Since: 19 Feb 2011
Location: my House, unless I’m not at home, in which case I’m somewhere else.
Posts: 6723

Scotland 2017 Range Rover Autobiography SDV8 Loire Blue

Nah, don't think so, new battery fitted in March this year..... Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Post #95307 30th Nov 2011 12:31pm
View user's profile Send private message View poster's gallery Reply with quote
Nomad



Member Since: 26 Oct 2011
Location: Ringwood, Hants
Posts: 300

United Kingdom 2012 Range Rover Autobiography 5.0 SC V8 Zermatt Silver

Check and clean the earths just to be sure. Does sound battery related so if it's not the battery could be a poor earth? If not then you're in to deeper realms. 2012 5.0L S/C
Previous:
3.6 TDV8
4.4 HSE
P38 4.6 HSE
Classic 3.9
90 County
Series3 Lightweight

Post #95311 30th Nov 2011 12:41pm
View user's profile Send private message View poster's gallery Reply with quote
PatGAPInnov
Site Sponsor


Member Since: 01 Dec 2011
Location: Montreal
Posts: 153

Canada 2010 Range Rover Autobiography 5.0 SC V8 Causeway Grey

Hello Everyone

I might be able to help you diagnose this issue.

Plugged in the IIDTool and found the followings errors stored :-

Rear diff
- 186D clutch actuator stuck :


This is not related to your dashboard lighting up like a Christmas tree. Did you try to clear it to see if it would come back?

ATCM Terrain Response -
- C401 invalid data received from engine control module/ powertrain control module
- C402 invalid data received from terrain transmission control module
- C403 invalid data received from transfer case control module
- C146 invalid data received from vehicle dynamics control module


While developing the EASControl, IIDTool and others, we accidently made these faults codes appear more than I can count on my hands. The dashboard also lighted up like yours. The issue is related to the CAN network. It consists of a twisted pair of wires that connect ECU’s together and data is transferred through.

There are 2 CAN network on your Range Rover. The terrain response ECU is connected on the high speed CAN. The wires are Yellow/Black and Yellow/Brown.

On normal operation, these errors may occur from time to time but they will not cause your dashboard to light up. In your case, I would place my chips on a hardware problem. If there is a short to ground of a CAN wire(s) for example, this will happen. It would also explain why the problem is intermitent since the wires move and the short wont always be present.

When investigating another issue, we found wires under the driver’s seat that were rubbing on a metal plate and shorted to ground via this plate. The medium speed CAN twisted pair had also started to wear. It wasn’t enough to short but, if I were you, I would start my investigation there even though our high speed can twisted pair was ok. We also found the same issue under the passenger seat but for other wires (speakers).

I hope this helps

Post #95632 1st Dec 2011 7:56pm
View user's profile Send private message View poster's gallery Reply with quote
donovanr



Member Since: 05 Feb 2012
Location: Cape Town
Posts: 2

South Africa 

hi there

I drive a LR3 V8 SE and had the same problems: stuck clutch actuator.

Alanm_3, could I ask you what remedial action you took? Did you have a look at the wiring or did you change the actuator.

Donovanr

Post #105578 5th Feb 2012 1:54pm
View user's profile Send private message View poster's gallery Reply with quote
alanm_3



Member Since: 19 Feb 2011
Location: my House, unless I’m not at home, in which case I’m somewhere else.
Posts: 6723

Scotland 2017 Range Rover Autobiography SDV8 Loire Blue

All I did was pull over and stop. Switched the car off and back on, and the problem disappered!

Haven't seen it since............... Whistle Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Post #105579 5th Feb 2012 1:57pm
View user's profile Send private message View poster's gallery Reply with quote
donovanr



Member Since: 05 Feb 2012
Location: Cape Town
Posts: 2

South Africa 

Hi Alanm_3

thanks for the info. If you will excume me, I have one last question (I hope).

The machanic I took my LR, informed me that I need to change the actuator and have the diff motor calibrated. My question, are you now driving with the actuator in the stuck position? what does it do then, this clutch actuator?

donovan

Post #105580 5th Feb 2012 2:10pm
View user's profile Send private message View poster's gallery Reply with quote
alanm_3



Member Since: 19 Feb 2011
Location: my House, unless I’m not at home, in which case I’m somewhere else.
Posts: 6723

Scotland 2017 Range Rover Autobiography SDV8 Loire Blue

I have no idea what is does, sorry!

I would assume that if it was genuinely stuck that I would get some warnings?

Sorry I can't help beyond that.......... Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

Post #105584 5th Feb 2012 2:24pm
View user's profile Send private message View poster's gallery Reply with quote
ANHSTEIN



Member Since: 24 Jul 2013
Location: RENS
Posts: 3

France 2008 Range Rover Supercharged 4.2 SC V8 Bonatti Grey

I HAVE A sUPERCHARGE 2008, AND NOW IT HAVE THE SAME PROBLEM WITH ALANM. I CHECKED CAN WIRES, BATTERY. EVERYHING IS OK. ARE THERE ANY CAUSES?
THANK FOR HELP

Post #200526 24th Jul 2013 1:07pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
fullfatrr.com RSS Feed - All Forums


Switch to Mobile site