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Fitting & Troubleshooting Guide:

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1. case the looms have been incorrectly assembled Merna tun k TET TAS EE OU PORE OPK re RLY S p a GPON LATE RIV iowa REAR HP ALAI a Th as tev CLIRONOTAN TI nir f a yo a IGHIR gt verre lt a rpreer TWA apaa i Po venm wwo T WANGI Many taillights will have a wiring diagram in the box e On looms where spade terminals are used between the wiring and connector block the terminals can simply be pulled off and connected back in the right configuration Wiring loom with spade terminals on connector block www DESIGN911 co uk 4 DESIGNS TUK Taillights Fitting amp Troubleshooting Guide e Check the harnesses amp bulb holders for loose wires or poor contacts Broken or loose wires can result in lights not working properly e Always check the fuses as well most cars have separate circuits for left and right hand sides SO you cannot assume that because the left hand brake light works OK for instance a blown fuse can t be the cause of the right hand one not working There will almost always be separate fuses for each side for safety reasons 3 Fuses blow e This usually means that there is a dead short somewhere It can be caused by a faulty wiring loom a short inside a bulb holder or having the wrong bulb fitted force a twin filament bulb into a holder intended for a single filament version and you will get a convincing demonstration of a dead short e To troubleshoot c
2. DESIGN S11 Centre for Porsche Fitting amp Troubleshooting Guide TAILLIGHTS Generally speaking fitting lights isn t that complicated then again anything s easy if you know how This little guide provides some general tips for fitting various types of aftermarket lights and also what to look for to try and resolve a problem if things don t go according to plan It won t make you an auto electrician overnight nor does it claim to cover every possibility but if you re not sure where to start it will certainly give you some ideas to work with Before you begin please note that working on a car s electrical system can be dangerous both to you and the car If you are in any doubt about your ability to follow any of the techniques detailed below don t Rather seek professional assistance This leaflet is offered as a guide only and we cannot accept any responsibility if something you attempt goes wrong Fitting tips It s useful to have an assistant hold the taillight in place both when removing and installing as it could otherwise fall and be damaged Before tightening anything make sure that the sealing gasket is correctly positioned and securely held in place Make sure that no wires are trapped between the light and the bodywork When doing up the mounting nuts or screws always tighten them all to finger tightness before doing them up with a spanner Sometimes it may be necessary to tighten one and loose
3. e covered by warranty e Some taillights have vents on the back to allow condensation to evaporate They often have a U shaped rubber pipe on them If they are present check that the open end of the pipe is facing sideways or downward and not upward as this could allow water to run into the unit Examples showing gaskets that were not correctly lined up when the taillight was fitted as Clearly indicated by the groove marks This would have allowed water to leak past the gaskets into the car www DESIGN911 co uk 2 2 Lights do not work correctly e The first thing to check is that the wiring looms supplied with the lights have not been swapped over by mistake as they are usually handed and must be fitted to the correct side They will be marked L amp R Wiring looms will usually be marked to show which side they go on e Next check that the individual bulb holders on the looms have been fitted to the correct sockets on the back of the lights The wiring colour is usually marked on the back of the light next to each socket e Finally check that the correct bulbs have been fitted and that there is no twin filament bulb fitted to a holder for a single filament bulb or vice versa www DESIGN911 co uk 3 Two into one doesn t go make sure the correct bulbs are fitted to the appropriate sockets e Also check the wiring configuration of the looms against the wiring diagram which comes with many of the taillights in
4. e in the air and warm air can hold more moisture than cold air When the air inside the light unit which ts warmed by the heat from the bulbs touches the inside of the lens which is at a lower temperature because it is in contact with the colder air outside the layer of air against the inside of the lens cools down as well and as a result it can no longer retain the moisture it is holding which is deposited on the inside of the lens to form condensation The condensation will only disappear once the air inside the light unit warms up enough to absorb the moisture again and in winter this can take some time Condensation is NOT indicative of a fault with a light unit and as such it isn t accepted as a reason for a warranty return Condensation occurs in original equipment lights as well but aftermarket lights often have clear lenses without any patterns so the condensation is more obvious On a patterned original equipment lens it might not be visible at all unless one looks closely While the above information is offered in good faith and is believed to be correct Design911 cannot accept any responsibility for any consequences howsoever caused resulting from the application of any of the information detailed in this leaflet www DESIGN911 co uk 6
5. heck bulbs are fitted correctly e Ifthe problem doesn t lie there replace the blown fuse s and connect the loom up to car s wiring but do not install any bulbs Then install the bulbs one at a time checking that they work properly after each one for example insert the left hand indicator bulb check that left hand indicator works if it does insert the right hand indicator bulb and so on until you get to the function that s causing the problem Then you know which circuit is at fault 4 Warning lights show on dashboard after lights have been fitted e This usually only happens in the case of LED taillights It can sometimes be solved by having the vehicles on board electronic control unit reprogrammed by a dealer in other www DESIGN911 co uk 5 cases this may not be possible and the lights will have to be returned to the dealer for inspection GENERAL INFORMATION e Know your left from your right References to left hand amp right hand are as viewed by someone sitting in the driver s seat e What exactly IS condensation Condensation is caused by water vapour in the air The moisture on the windows inside your house in winter is condensation and when that happens you don t start looking for leaks in your windows do you You ll be a long time if you do In exactly the same way condensation inside a light unit is hardly ever caused by a leak The basic scientific explanation is this There is always some moistur
6. n another to get the panel gaps even Don t overtighten nuts or screws either as this can lead to broken or stripped mountings which are not covered under warranty either for obvious reasons Most aftermarket taillights will not fit to exactly the same standard as the original equipment items in terms of the panel gaps between the light and the car body If the difference between the original and aftermarket lights is not more than 3 mm this would be considered to be within specification Problem Solving 1 Leaking elf moisture is getting into the taillight the first thing is to determine if there is actually a leak or if it s just condensation see under general for an explanation of condensation e lf water is getting into the car interior remove the light unit and check that the sealing gasket has been fitted correctly If the light unit is not fitted carefully the gasket can bend or kink so that it no longer forms a proper seal This can easily be determined by looking at the gasket there should be a continuous groove all the way round the gasket from the plastic of the light unit pressing into it If the groove runs off the edge of the gasket or disappears at any point it is likely that it was not fitted correctly e tis also possible for gaskets to be left off completely when a light is fitted or for the mounting nuts to be tightened insufficiently so that a proper seal is not achieved None of the above issues would b

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