JimDay Posted May 14, 2015 Share Posted May 14, 2015 Hi All On my 'N' Reg Disco 1 I am having problems with the indicators when I am towing, the trailer warning light on the dash does not flash as it should when the trailer is plugged into the towing socket the warning light just gives one flash as it would without trailer attached I have tried another 'new' flasher unit, the unit says it is for 8x21watt + 2x5watt bulbs, I have checked all earths on the caravan & on the Disco with no luck, the towing socket is wired into the loom behind the right rear tail light on via the factory loom I should say the Disco has twin 7 pin sockets fitted as does our caravan, not the new 13 pin type, so as I know the caravan indicators are working and to comply with the law & MOT requirements I have fitted one of those annoying little buzzers & it's doing my head in despite muting it with sponge & duct tape LOL Has anyone else come across this problem & found a cure Many thanks Jim Quote Link to comment Share on other sites More sharing options...
teabag Posted May 14, 2015 Share Posted May 14, 2015 Perhaps it's due to the trailers bulbs not meeting the exact resistance required by the indicator relay, therefore no flashing in unison with the vehicles dash bulb so indicating a trailer lamp fault. Quote Link to comment Share on other sites More sharing options...
JimDay Posted May 14, 2015 Author Share Posted May 14, 2015 Hi teabag I've checked the wattage of all bulbs on car & caravan & changed a few of them that had slight corrosion on them but even if I plug in another trailer or trailer board it's still the same the warning light just gives one flash which makes me think it's soon the Disco that isn't quite right Quote Link to comment Share on other sites More sharing options...
teabag Posted May 14, 2015 Share Posted May 14, 2015 Resistance is ohms not watts, if you have tried a new replacement relay then perhaps the tow bar plug/ socket connection has a problem. Quote Link to comment Share on other sites More sharing options...
JimDay Posted May 14, 2015 Author Share Posted May 14, 2015 Yeah checked resistance too, socket is brand new but wired into old loom so it would still plug into the car loom behind right hand rear light maybe I should splice it straight into the loom that's about the only thing I haven't tried. Maybe there is too much resistance in the plugs that join into the main loom not checked that as yet Quote Link to comment Share on other sites More sharing options...
teabag Posted May 14, 2015 Share Posted May 14, 2015 Well unless the original connection in the main lighting loom has be touched it should be ok, although maybe worth a look for corrosion there, ok if you don't have the boot seats, a pain if u have. Quote Link to comment Share on other sites More sharing options...
SPendrey Posted May 14, 2015 Share Posted May 14, 2015 Do the bulbs actually flash in unison though? Not the dash one behind the trailer symbol, but those on the trailer or caravan? Quote Link to comment Share on other sites More sharing options...
Orgasmic Farmer Posted May 14, 2015 Share Posted May 14, 2015 On the D1 this seems a common problem and is usually indicative of a need to replace the red flasher relay. This should cure the issue EDIT> Sorry I see you have tried that. Quote Link to comment Share on other sites More sharing options...
JimDay Posted May 14, 2015 Author Share Posted May 14, 2015 Yes all the bulbs flash in unison & yes I have changed or tried another new flasher unit although mine is black not red fitted in the fuse box behind the dash, between the drivers door & steering column. Looks like I'll have to check the plug behind the right rear light unit ( Oh & Teabag luckily I don't have the boot seats ) Quote Link to comment Share on other sites More sharing options...
finnarne Posted May 15, 2015 Share Posted May 15, 2015 Led indicators on the trailer ? Quote Link to comment Share on other sites More sharing options...
JimDay Posted May 15, 2015 Author Share Posted May 15, 2015 Hi finnarne no standard bulbs on Disco & trailer Quote Link to comment Share on other sites More sharing options...
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