Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
Fault codes. Special functions and no hi/low not working.
Help in the right direction where to start please.
21st May 2021 9:45 am
ofob69
Member Since: 06 Oct 2011
Location: Pangbourne
Posts: 61
Just been there but slightly different codes.
Start with replacing brake switch (yes really, Google it), £10+ and 5 minutes work
Check battery voltage
Check alternator is working correctly
If these don't work then it starts getting more complicated........
21st May 2021 11:00 pm
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
Yes the switch is a common problem even if the brake lights work ok as it has two circuits inside.
The other common fault is the brake light bulbs, if a filiment breaks off and touches the other circuit it can confuse the canbus.Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
22nd May 2021 7:58 am
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
Still getting the same issues
New battery
New brake pedal switch
I don’t know where to try next if I’m honest
31st May 2021 10:05 pm
ofob69
Member Since: 06 Oct 2011
Location: Pangbourne
Posts: 61
What symptoms are there on the car or are you just getting fault codes?
31st May 2021 10:24 pm
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
No lights on the special functions and no low range. Dash shows special functions error
31st May 2021 10:58 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4693
Re: Fault codes. Special functions and no hi/low not working.
Day101 wrote:
Click image to enlarge
Check your earth straps (thoroughly) Also, P0562, P1811, and P1807 could indicate water ingress/corrosion at the TCM terminals or one of the plugs on the transfer case.yµ (idµ - eAµ) ψ=mψ
31st May 2021 11:23 pm
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
Where are the earth straps located?
1st Jun 2021 6:55 am
aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459
check the front engine one located behind the drivers side front wheel arch liner it connects the engine, chassis and body.
there is also another one that connects the transfer case to the chassisAndrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
1st Jun 2021 8:10 am
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
Any idea what this plug is for as it doesn’t connect anywhere
1st Jun 2021 10:30 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10382
That plug is used when the car is new.
It's fine like that
Either water split on the Hi Lo switch or some other fault with it or the wiring.
There are fault codes saying as much
1st Jun 2021 10:37 am
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
is it worth looking for a new switch?
1st Jun 2021 3:23 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10382
It’s all part of the console switch pack.
It’s like a tv remote control if you have ever serviced one of those.
1st Jun 2021 4:53 pm
Day101
Member Since: 21 Oct 2019
Location: Herefordshire
Posts: 44
I’ve opened it up and looked at it can see any issues but no lights light up at all on the board apart from the suspension. No water damage only thing I can think off if the kids have stood on that part and broke it
1st Jun 2021 5:22 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10382
clear the faults. See what comes back.
As AJ said, look at the ecu end.
And resistance test the switch wires at the ecu connector if the fault codes are still present
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