Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
B1B70
Hi
I have the following code listed on my vehicle, B1B70 local interconnection network bus circuit 2 (intermittent).
Could someone please help me understand what this relates to, and is it something that is going to create issues?
Kind regards
Jay
13th Aug 2014 9:20 am
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
It will not cause any issues and most LIN bus issues can be ignored if you are not experiencing any symptoms.
I think this particular code is for the serial link to the battery back-up sounder; not exactly the best bit of kit.Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
Thanks for the info Robbie.
Incidentally, what areas of the vehicle get affected by these problems if it were to give issues?
Kind regards
Jay
13th Aug 2014 1:36 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Short answer - it depends.
The networked systems set fault codes for a brace of different reasons and these can be a simple as the network being busy and a module not being able to get its message out in the time allowed. If you have no apparent faults then these hiccups can be ignored. If you found yourself with a bit of kit that did not work and you had fault codes on that bit of the network it could give you a diagnostic clue.
Land Rover - Turning Drivers into Mechanics Since 1948
Last edited by Robbie on 13th Aug 2014 8:14 pm. Edited 1 time in total
13th Aug 2014 1:51 pm
UKJay
Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
Thanks Robbie,
The only other fault code logged on the vehicle is P0578 speed control multi-function input A circuit is stuck (intermittent), which I assume is linked to my cruise control not working, which I believe this is linked to either the switch pack or clock spring.
Could the other code be linked to this?
Regards
Jay
13th Aug 2014 2:01 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
No it won't be linked but yes that code is linked to the resistance values used for the steering wheel resistive array.
It can be caused by corrosion at the ECU, wiring, clockspring, connectors or one of the switch packs. Damaged or tarnished connectors under the airbag is a good place to start as clocksprings are not cheap.
Land Rover - Turning Drivers into Mechanics Since 1948
Last edited by Robbie on 13th Aug 2014 8:15 pm. Edited 1 time in total
13th Aug 2014 3:17 pm
UKJay
Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
Hi Robbie
We looked at the wiring under the airbag (or should I say - Geoff did when he was flushing my gearbox), and all the wiring was fine, nothing out of the ordinary.
Will have to look at the part numbers for switche pack etc, as I understand there are two colours that I need to be aware of - so getting the right ones is part of the battle.
I have also seen the clock springs advertised on here within certain members signatures for around £140 ish so I understand they have a fair price tag associated with them, but I do miss cruise control and if we go over to france in the disco - it would be handy for the long journey.
Kind regards
Jay
13th Aug 2014 3:30 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
I hate spending money on parts when I am not positive on the diagnosis so I would check the ECU for any corrosion (the module hidden behind the battery under a plastic cover) and if not that look to borrow a clockspring before spending money.
Or it may be an opportunity to upgrade everything required for a heated steering wheel - yum.
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
Robbie wrote:
I hate spending money on parts when I am not positive on the diagnosis so I would check the ECU for any corrosion (the module hidden behind the battery under a plastic cover) and if not that look to borrow a clockspring before spending money.
Or it may be an opportunity to upgrade everything required for a heated steering wheel - yum.
Thanks Robbie
I too dislike spending money - but it always seems to evaporate from the bank acct
I will have a look at the ecu for corrosion on Friday as I am on horsey duties tomorrow.
Kind regards
Jay
Last edited by UKJay on 13th Aug 2014 7:43 pm. Edited 1 time in total
13th Aug 2014 7:39 pm
UKJay
Member Since: 24 Aug 2013
Location: In The Mud
Posts: 432
Disco_Mikey wrote:
Wiring loom in behind the airbag is another common issue with CC faults. £18 if my memory serves me correctly
Hi Mikey
Geoff looked at the wiring for me when he came to flush the gearbox and everything seemed to be as it should. Would you advocate I change the wiring loom as a precautionary measure owing to the cost of replacement?
Kind regards
Jay
13th Aug 2014 7:43 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20806
Yes. Wouldn't be the first time everything has looked OK, but the wiring loom has cured the problems My D3 Build Thread
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