In need of help, new to landrovers! I have a fault that’s come up UO416.00. Can anyone help with this? Local garage cleared faults yesterday, on his computer this stayed on as a temporary fault. Today after driving 20 mile I had the same warning lights come on, transmission fault, park brake fault & lowered suspension. Transmission Control Module (TCM) (44.15.46) Special Service Tools ZF Automatic transmission valve block seals remover 307-492 (LRT-44-005) Removal NOTE : Published : May 27, 2004 The transmission control module (TCM) is part of the main control valve body and cannot be serviced separately. 1 . The box seems to be changing up through all the gears ok ( sometimes a bit slow changing up) but main problem is once in top gear the revs stay high. It used to always feel it had changed up another gear when the revs dropped down but it's not doing it anymore. Checked level of oil and all good with no burnt smell. Hi there. For three years my disc 3 has been dropping in and out of limp mode and showing warning “auto transmission fault, some gears not available” and HDC fault it has been back and fore garage all through covid they have changed EGR valves (4), turbo valve on top, turbo pipe, suspension cylinder (sorry don’t know right names for these Alternatively, you could disconnect the negative terminal to your battery and leave it disconnected for about 30 minutes. Then reconnect, reinitialize your SAS and try again. Also, check the basics like your battery and charging voltage to ensure that you just don't have a flat battery which can also cause issues like this. MJR. Part #: YMD001500G Diagnostics and Replacement of Transmission Valve Body Harness With Temperature Sensor on a Range Rover Full Size 2003-2005 (L322)Choosing The Right Diagnostic System for Your Land Rover A Comparison of 3 Diagnostic Systems, 2003 - 2009, 8-Cylinder Gasoline, North American SpecificationsHi I'm Doug, your tech representative here at Atlantic British. Disco Mike. Use the old Lucas additive, not the new ATF with additive. Tim, Lucas is mainly for cleaning up sticky valves and yes it will help some internal seal but is not made as a external stop leak. Retired service manager, member of Solihull Society, SCLR, NCLR and the Santa Barbara 4Wheelers clubs. Transmission system fault Transmission control module software not at the latest level Transmission adaptions insufficient for smooth gearshifts GO to Pinpoint Test A. Fluid Level and Condition Checks Fluid Level Check NOTE: The transmission fluid temperature must be between 37°C (99°F) and 45°C (113°F) whilst checking level. 2mEZ.