XC60 Tow electrics

rmvm · Feb 13th, 2024, 10:49

I recently aquired a xc60 B5 Inscription Pro 2021, already fitted with the electric Volvo fitment towbar. I recently hooked the car up to check if everything worked. The outside lights all worked fine including the satisfactory noise when the Alko anti-snake is activated. However, inside the caravan none of the lights worked and the caravan control panel over the door (Swift Conqueror) also wouldn't switch on. What I can't remember is whether or not it was the same on my previous V90 CC. Anyone any thoughts? Thanks Roy

Andymharrison · Feb 13th, 2024, 11:18

It may not be true for all combinations of car/van but when I hook up our xc90 the caravan battery swaps over to connect to car rather than caravan and so nothing happens when the master switch is turned on.

If the leisure battery is charging and fridge works in battery mode I'd say all is well.

rmvm · Feb 14th, 2024, 04:31

Thanks Andy

cumbrianmale · Feb 20th, 2024, 08:50

Is it 13 pin electrics? From a very distant memory when I had one installed and had a similar issue I found pin 9, I think, wasn't populated. The wire was taped back on the loom. This was where the tow side plugs into the car harness. It may have been on the car side of the connector, as I say it was years ago. Once I inserted it into the plug everything worked.

watto64 · Feb 22nd, 2024, 13:58

As with Andy's comments our caravan only has the fridge and battery charging in operation when connected to the car and engine running. The master switch in the caravan does nothing when the engine is on or off when connected to the car.

This was the same on our 2017 Santa Fe.

Andymharrison · Feb 22nd, 2024, 14:29

Quote:

Originally Posted by watto64

As with Andy's comments our caravan only has the fridge and battery charging in operation when connected to the car and engine running. The master switch in the caravan does nothing when the engine is on or off when connected to the car.

I assume there is a change-over relay somewhere to disconnect the van from the battery when connected to car but haven't located it. I always thought this was by design to discourage the stupid people who chuck the kids dogs etc in the caravan to have a quiet drive. Years ago it was relatively common to see a bunch of kids pulling faces at passing traffic.

Having seen what's left when a caravan goes over on the motorway I'm glad it doesn't seem to happen anymore.

Feb 13th, 2024, 10:49	#1
rmvm Junior Member Last Online: Jun 30th, 2024 08:58 Join Date: Aug 2021 Location: Lytham	XC60 Tow electrics I recently aquired a xc60 B5 Inscription Pro 2021, already fitted with the electric Volvo fitment towbar. I recently hooked the car up to check if everything worked. The outside lights all worked fine including the satisfactory noise when the Alko anti-snake is activated. However, inside the caravan none of the lights worked and the caravan control panel over the door (Swift Conqueror) also wouldn't switch on. What I can't remember is whether or not it was the same on my previous V90 CC. Anyone any thoughts? Thanks Roy __________________ Volvo XC60 B5 MHEV Inscription Pro Denim Blue MY21

Feb 13th, 2024, 11:18	#2
Andymharrison Member Last Online: Today 13:06 Join Date: Feb 2019 Location: Town	It may not be true for all combinations of car/van but when I hook up our xc90 the caravan battery swaps over to connect to car rather than caravan and so nothing happens when the master switch is turned on. If the leisure battery is charging and fridge works in battery mode I'd say all is well. __________________ 2005 XC90 D5 2009 XC70 D5

Feb 14th, 2024, 04:31	#3
rmvm Junior Member Last Online: Jun 30th, 2024 08:58 Join Date: Aug 2021 Location: Lytham	Thanks Andy __________________ Volvo XC60 B5 MHEV Inscription Pro Denim Blue MY21

Feb 20th, 2024, 08:50	#4
cumbrianmale Forum Support Team Last Online: Sep 17th, 2024 16:24 Join Date: Mar 2006 Location: Deep in Makem territory	Is it 13 pin electrics? From a very distant memory when I had one installed and had a similar issue I found pin 9, I think, wasn't populated. The wire was taped back on the loom. This was where the tow side plugs into the car harness. It may have been on the car side of the connector, as I say it was years ago. Once I inserted it into the plug everything worked. __________________ Current 04 S80 D5 SE Auto 03 S80 D5 SE Man Previous Volvos 90 240 GL B230FB Auto 96 940 CD 13 V40 D2 R-design 89 745 GLE 98 V90 3.0 24v 98 945 Celebration Auto 96 965 SE Auto 86 744 GL 81 244 DL

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Feb 22nd, 2024, 13:58	#5
watto64 Member Last Online: Sep 13th, 2024 20:34 Join Date: Jul 2022 Location: Tamworth	As with Andy's comments our caravan only has the fridge and battery charging in operation when connected to the car and engine running. The master switch in the caravan does nothing when the engine is on or off when connected to the car. This was the same on our 2017 Santa Fe.

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