Member Since: 22 Jan 2024
Location: Dorset
Posts: 3
2007 Disco 3 Electrical issues
Hi can anyone help me I've had various problems over the last six months had oil leaks and both HP & LP fuel pumps replaced. I've had my dash cluster overalled and another ecu coded in. I still get the vehicle after driving for a short time goes into limp mode and lowers the suspension as well as warnings about gears and other things. It ends up with codes for lost communication with ride level control module, parking assist control module, audio unit, control module, internal trip switch circuit, battery disconnection/electronic control unit reset as well as high and medium speed CAN communication bus problems.
Any help or ideas would be much appreciated.
16th Aug 2024 11:04 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4518
What condition is the battery in? A poor battery can cause all sorts of issues. Really you need the codes read with a proper diagnostic tool to make a start on pinpointing the causes.Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
17th Aug 2024 8:36 am
roysie
Member Since: 22 Jan 2024
Location: Dorset
Posts: 3
Hi Richard thanks for replying. I have had the car scanned and it pointed at the cluster as the modules could not communicate, the guy said he has had a few with the cluster issue, so the cluster was repaired and replaced but we still had the same issue. It was removed again and went back for re-testing and all the possible problem components replaced as well as the ECU on the advise of the tech that repaired the cluster. Although the voltage was reading ok on the scanner the battery was not holding charge so we replaced it with a new Bosch battery. All the errors I listed above came off the techs scanner, I was also told it could be the Body Module/Central Junction Box (Fusebox).
I just thought I would see if anyone else has had or heard of a similar problem. The codes we got are
U0010-88, U0001-87, U0010-87, These are CAN bus Faults. U0132-87 Lost Communication with ride level module, U0159-87 Lost Communication with parking assist module,U0184-87 Lost Communication With Audio Unit, B1A00-46 Control Module, B1A81-64 Internal trip Switch Circuit and B1A87-68 Battery Disconnection/Electronic Control Unit Reset.
I don't know if this a help but any idea would be greatly received.
Regards
Roy
17th Aug 2024 4:56 pm
Bicycle repairman
Member Since: 18 Sep 2019
Location: Cumbria
Posts: 188
I'm sure discomikey have a similar can bus fault and it turned out to be a solder joint in the can bus wiring, His was on the junction where the loom runs by the passenger front door.D4 GS let the retro fit begin
Heated steering wheel
Aftermarket TPMS
Double Din head unit satnav and TV
Reverse Camera
Cubby fridge
Door panel upgrade
Mood lighting
Digital Dash personalised
Back lit sun visors
4.5 Facelift front, rear and memory mirrors
Stainless bumper tread plate
6 pot Brembo conversion
HSE heated memory seats
Retro fit auto lights and wipers
LR 663 Defender alloys
275 45 20 GG AT3s
quarter of a D3
17th Aug 2024 6:06 pm
roysie
Member Since: 22 Jan 2024
Location: Dorset
Posts: 3
Hi the follow on from my previous post the electrical guy said that after doing a deep scan the only real fault is low fuel pressure all the other modules are not receiving data properly.
I have read the dreaded fuel pressure thread. It seams no one has actually come back and said the vehicle is finally fixed it turned out to be XYZ.
Any help would be appreciated. The HPFP and the LPFP are both VDO. As well as genuine fuel filter fuel cooler and the oil cooler on top the engine also has been replaced. It had a leak off off test done at a independent specialist they ruled out injector problems.
28th Aug 2024 4:05 pm
James M
Member Since: 19 Dec 2023
Location: Scotland
Posts: 26
Hey
Are you any further on with yours I’m in a very similar situation with a RR sport low fuel pressure on acceleration for years now it’s had 1 LPFP and 2HPFP all brand new Land Rover parts fitted by Land Rover dealer that has also replaced and tested ever single part of the fuel system and still can’t find it !
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