I’m fairly new to Range Rovers, but I’ve recently purchased a used 2006 Range Rover Sport HSE. I have an intermittent set of faults that appear on the dash such as Transmission Fault Traction reduced, HDC Fault System Unavailable, Suspension Fault, Suspension Lowered, Tire Monitoring System Unavailable. I also have a list of codes that I pulled up with my Carsoft scanner.

U0416
U0421
U0416
C1130
U0010
U0132
U0182
U0159
U0127
B1A87
U0122
P080A
C1A98
U0010
U2003
B1b01
B1B85
B1B88
U0155
U0300
B1b74
B1b75
B1b76
B1b77
B1A00
B1D59
C1A56
C1A58
C1A60
C1A62
C1A64
From what I’ve read this is all pretty common, however what’s different with my vehicle is I don’t have any icons on the dash lighting up, I can pull up my air suspension screen and it’s operation properly allowing me to see all 4 tires, once I start the car and drive it’ll be at the lowest possible level but with in 5 to 10 seconds it’ll automatically pump to normal height. The suspension buttons on the other hand with extinguish all lights and if i try to raise or lower the suspension it’ll blink and do nothing. I’ve checked my fuses they are good, battery has 100% charge, Alternator is running good, I changed the brake switch. I’m slowly running out of options, I read on some posts that the wiring by the passenger door might be chewed up or ruined which seem probable but when I investigated no issues were apparent. I’ve pulled my TCM module out and sprayed electrical cleaner on the prongs there was no sit or any rust. I appreciate any help or advice that can be provided!

I've heard that multiple fault codes can be due to a failing battery, which stops the systems closing down properly when you switch off.

Not sure if that will be the answer, though. Good hunting!

The error codes aren't complete, unfortunately. There will be two more digits for each one which help to point at specific items.

Download the workshop manual (search for member naks on here and there is a link in his signature line). Then search for each code in the manual.

The problem is that the way the systems work together, a fault in one can cause a cascade of failures through many other systems. Getting the exact codes and checking for each one will help to pin it down. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Brake light bulbs all working? 2006 2.7 TDV6 HSE in Cairns Blue.

As has been mentioned,, battery is a good starting point, get a proper test on it to see if it is on its way out. Make sure all lights are OK and no cheap bulbs have been fitted as this has also known to cause issues. Search the forum for topics on this and check all the cheap options first 2010 RRS, TDV8
bali Blue / colour coded
side steps / flappy paddles
black perforated leather
22" overfinch
heated everything, TV,fridge ...... now with gold calipers and mud flaps !( black mud flaps that is) !!
Many years ago,,,,, 1955 series 1 landie , sometimes wish I had kept it