Recently I uncovered our 1989 Swift Corniche to check it over ready for a trip out in a week's time, only to find when I connected up, no lights came on. Returned to have another try. After spraying with WD40 and connecting, was met with confusing actions. Some lights 'pulsated' and some still did not work.
My brother who is pretty electrically orientated connected a multimeter to the 13 pin car plug and we found connection 7 with No. 3 (earth) produced 12+ volts. The others a mix of low readings or nothing. I have read a lot of suggestions about electrical faults being earthing problems, but don't thing this is the case. I went around all the connections and tightened all of them to ensure good contact.
At this juncture, I want to say that I bought the towbar from PF Jones and a dedicated wiring system for my 2012 Volvo XC 60. The wiring came with a Right Connections CAN-Bus Module which has a red and green light to indicate the state when connected to the van. We had a red light, but on connecting the van it stayed on red and never switched to green. My in-car information/warning system stated there were two messages, but I wasn't able to get further information. After an over-night break, there are no messages, which suggests that they were related to the connect-up to the van.
I currently am trying to locate a trailer board to test the car side of things.
If anyone has experienced similar, I would appreciate how they resolved it.
I have taken a quick look at the Right Connections website, but was unable to find if they do a spare replacement Module and time is running out if we are to go away as planned next weekend.
Thank you for any thoughts/ideas.
Roger-jolly
Hi have you fitted a 13 pin plug to caravan, because a 1989 caravan should have 12n and 12s plugs or are you using an adaptor. One way to check earth is to remove a rear lamp lens off caravan using a length of cable and clip. Clip the crock clip to a good earth point on the car and the other end to earth point at caravan rear lamp should be a white wire. Then connect car to caravan and test the lights
I assume you have the manuals that came with the towbar and wiring. It might be necessary to have the module coded to the car, but this should be mentioned in the installation instructions.
Check the module BUS wires are connected to the correct BUS wires in the car, and that all earth wires are making proper contact.
Ensure the module has been placed so that there is no chance of water getting to it when packing up in the rain, as these are expensive to replace (I know this!)
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Topic: Towing Lights Not Working.
