What is fault codes p1610, p1470, p2500, p2201a, u3fff. On clk 270, 2003

no year care told the manuals are by year and country.
fails USA smog or Canada, can we know this?
no to smog stations are the same USA FED or CALIF are different as is all other countries.
2005 to present made,
no VIN or engine told. and smog is big time on ENGINE types.

U3fff is using a useless scanner for this car.
use only 2008 and newer scan tools
the tool (no toy code readers
Your vehicle uses a CAN bus network for communications and any scan tool used to do what you are trying needs to be CAN capable.

U3fff (the fff means bad data read) F is hex code 1111b
IT MEANS CAN BUS FAILED.
top cause is tool can not do modern Chrysler DTC codes.
FFF = 1111-1111-1111b
U3 means factory only code.
solutions all
DIY buy a real real scan tool 2008 or newer.
get it scanned in a real shop
barrow the tool ,buy one or rent one.
some shops do it for free ASK EM/
some store do it for free but 1/2 the time fail or reasons stated above. wrong tool used.
scan tool can_bus certified + Chrysler too.

Dont know where you found these fault codes but their not in my nissan list or the universal codes ,no my main suspect is the alternator diodes now charge the battery and then disconnect the alternator wires and see what happens when car is left for a few days

U codes are communication faults between the different modules present on your vehicle. The PCM has to maintain control via separate modules that monitor and control every aspect of it, from engine and emission control,transmission control, anti-lock, traction control, lighting, hvac, suspension control, etc...To diagnose these codes requires a quality scan tool and a technician who is experienced with these systems.

POWERTRAIN RELATED CODE FROM ANOTHER MODULE

P1615 SBDS Interactive Codes
_____________
vvdi commander

P1610 - SBDS Interactive Codes Possible defective PCM.

You will need a repair shop to get those codes again,
& they will have to diagnose the issues

Regardlees of many peoples feelings, no vehicle can
accelerate on it's own

Any somewhat related syptom can be found & explained
Not a safety issue

We have no access to manufacture specific codes, some
of which you gave us

P1610 is loss of serial bus Data.
P1612 is a NATS error. this is the Anti-Theft system

It effecttively immobilises the car and it wont start until you have the faults cleared.
This can happen after a low battery voltage.

P1470 Variable intake balance valve - always open
P1471 Fault with the VIS motor 1
P1472 VIS power/butterfly valves always open.

Look at the info on this site.http://www.landroversonly.com/forums/f11/help-me-error-code-p0174-p0171-p0705-p1472-p1470-45430/

http://www.landyzone.co.uk/lz/f9/code-p1471-v6-vibration-rattling-sound-55445.html

check spark plug and wire
test oxygen sensor
check compression ( valve might be at fault)
have computer checked