Jaguar S-Type Touch Screen Blank, 50 51 on Display
50 and 51 on the small display mean the screen gets no answer from the navigation unit in the boot — the screen itself is almost never at fault. I'd start at that unit: a jammed disc, a poor contact at its fuse, lost software, a bad disc, then a used unit.
How bad is it · Safe to drive
Safe to drive, but the climate controls may be gone
On these cars heating and air conditioning are set through the touch screen, so demisting can be poor with the screen down — plan for that in cold or wet weather.
Which one applies to yours depends on your symptoms, your model year and what has already been done to it.
Likely causes, most common first
Read the check cost before the odds: a free check that rules a cause out beats a likely guess that costs money.
Map disc jammed in the boot unit
The navigation computer in the boot also runs the screen. If its DVD drive seizes on the disc, the computer stalls.
Blank screen with C1, 50, 51 cycling below; the disc doesn't spin and won't eject.
Left boot side: listen for the disc at switch-on and try to eject. If it's stuck, take the unit out, open it and free the disc.
Free the disc and refit; screen, buttons and code come back within seconds.
A poor contact at the navigation fuse in the boot
The boot navigation unit takes its feed through F29, 10 A, in the boot fuse box. A fuse that looks perfect can still have a dry contact in its holder, and with no feed the unit never answers the screen.
Black screen, dead buttons around it, C1, 50, 51 cycling on the small display, the disc won't eject — yet the radio itself still plays.
Pull F29 even if it looks fine, and push it back in turned round. Check the disc spins at the next switch-on.
Reseating the fuse turned round brought screen, buttons and navigation straight back, with no parts.
The unit has lost its software
An interrupted update, or S/W Update pressed in the hidden menu, wipes the unit's software. It then waits for a load disc, screen black.
Blank since an update, or since options were changed in the hidden menu.
Burn the loader file alone onto a DVD-R, slowest speed, finalised — it must audibly spin. After a failed system update or changed options, leave the correct system disc in, ignition on, for twenty to thirty minutes — the earlier CD-based system recovers the same way. Never press the update option without the right disc in hand. The loader file is for the boot unit, not the radio: the radio hasn't been wiped, which is why it still plays blind.
Reload it from a correctly burned home disc, or have a dealer run the system disc. No new unit needed.
A faulty or wrong map disc
A damaged or wrong update disc can hold the unit on its loading screen for good.
Reading disc, please wait for hours with the engine running.
Try another disc before blaming the unit. The map disc and the dealer's system disc are different things.
A replacement map disc.
The navigation unit has failed
If the disc spins and no reload takes, the unit is dead. It's a self-contained box; used ones are plentiful.
50 and 51 persist after a correct reload disc; radio and CD controls may be dead too. Another picture of a dying unit: the Jaguar logo, then Communication fault — please consult your dealer, and the screen restarts over and over while the boot unit clicks and won't give up its disc.
Fit a used unit of the same era; test it a while before binning the old one. Part numbers 2R83-10E887-AD, -AF and -AG are interchangeable. Afterwards the radio will ask for its code.
A used unit is worth trying — for example, under a hundred dollars plus an hour's labour. The first used one may not last. A used 2R83-10E887-AF cured a screen stuck in a restart loop: navigation, Bluetooth and voice control all came back.
Screen, boot unit and climate all dead
Not settled. If the climate also blows hot, the heater valve can overload the climate board — a separate fault with its own page.
Screen and boot unit dead, climate stuck hot, EXT C1, EXT 50, EXT 51; or a screen restarting every few seconds.
If the climate is dead too, look at the heater valve and the climate board first. Otherwise have a diagnostic tool list which modules answer on the network before replacing anything.
No proven cure for the whole picture yet. Where a failed heater valve has burned two tracks on the climate board, the repair is a new valve (about $100), two soldered jumpers across the tracks and two 2 A fuses between valve and module so it can't recur.
Our product · Jagaux
Jagaux Android conversion kit
Keeps the factory screen and puts Android — maps, music, apps — on the NAV button. Climate, menus and audio stay as they were, nothing is cut, and the car can go back to stock at any time. Built to order.
cars with the factory touchscreen: XJ (X350/X358), S-Type, X-Type 2002–2009
The order to check them in
The point of the order is money: each step either rules a cause out or makes the next one worth doing. Green is free, amber costs a little, red is the one to arrive at last.
Read the small display
50 and 51 point to the boot unit. Note whether the climate works.
freeCheck the fuses
On the 2007 layout: F29 10 A in the rear box (navigation, telephone), F18 20 A and F27 10 A in the passenger junction box (radio and display). Pull F29 and refit it turned round even if it looks good.
freeGo to the boot unit
Left boot side. Does the disc spin at switch-on, and eject? Free a jammed disc first.
freeReload the software
Loader file on its own, slowest speed, finalised. Keep the ignition on and the battery supported; the radio may ask for its code afterwards.
a blank DVDThen a used navigation unit
Not a new screen, and not a dealer's full parts swap.
a used unitThe fuses named above — where they sit
The highlighted position is the one the procedure talks about. Pulling a fuse is a stop-gap, never a repair: check what the circuit feeds before you pull it.
Circuit descriptions from the Jaguar handbook, 2007 edition, p. 9, 10. Drawing by jagaux.com from the factory electrical guide. Fuse layouts change between model years — read the legend on the lid of your own box before pulling anything.
Circuit descriptions from the Jaguar handbook, 2007 edition, p. 7, 8. Drawing by jagaux.com from the factory electrical guide. Fuse layouts change between model years — read the legend on the lid of your own box before pulling anything.
What it usually isn't
Don't spend money here first:
If none of this finds it:
On jagaux.com
- Jaguar S-Type AC Blows Hot Air, Heater Control ValveIf the climate is stuck hot as well — the heater valve and the climate module.
- S-Type (X200) fuse boxes and full fuse list
- Jaguar radio code generatorFree. The radio may ask for its code after a software reload.
- S-Type 2002–2008 radio pinout and wire colours
- Jaguar VIN decoderConfirm your exact model year, engine and factory options before ordering parts — free.
Ratings, fuse numbers and torque figures vary by model year and market. Read the legend on your own car before pulling anything, and use the figures in the manual for your car, not the ones in a video.
Check your VIN: exactly which car you have and which bulletins apply to it.