Towplug Electrical Probs and Bulb Failure Flickering

grollie · Sep 26th, 2009, 13:35

I have an H reg 940 GLE Estate and had problems with the towplug electrics. It is a Volvo fitted one Dual 7 pin Plugs. the towboard lit up like Disc lights and found that the one i think was Earth was getting a 12v feed so earthed iit out on hitch as had to do an emergency tow and got the in dicators and brake circuits working and sufficed with that in Daytime from Horsted keynes to Nottingham. But now when selecting Rh indicators the bulb Failure flicks on when the Indicator lights are on the off sequence. Tried to load Volvo Information system 2005 and crashed pc as result. Any advice appreciated.

cumbrianmale · Sep 26th, 2009, 14:39

Moved this to the towing section for better response.

JimDay · Oct 2nd, 2009, 01:43

What colour was the wire that you put to earth. The white wire is the earth pin 3 on the socket & should be connected to a good earth on the car chassis at the other end
this should help you out.
http://www.volvoclub.org.uk/towbar_electrics.shtml

grollie · Oct 10th, 2009, 20:46

To get a recovery done i disconnected the white wire off the female towplug and put in an emergency earth onto the tow bracket but the tailights still don't work. The bulb failure maybe flickering because of a faulty earth on the righthand light cluster but not sure as haven't had time to look at fully. all the lights seem to work so when i get will give report.

Clan · Oct 10th, 2009, 22:30

If the tow socket wiring has been done correctly It should have no influence on the bulb fail unit at all becuse this is by passed with correct volvo wiring ..

The fault is probably a dirty connection on the relavent rear light unit ..

Sep 26th, 2009, 13:35	#1
grollie Junior Member Last Online: Jan 22nd, 2024 16:30 Join Date: Jun 2007 Location: Birmingham	Towplug Electrical Probs and Bulb Failure Flickering I have an H reg 940 GLE Estate and had problems with the towplug electrics. It is a Volvo fitted one Dual 7 pin Plugs. the towboard lit up like Disc lights and found that the one i think was Earth was getting a 12v feed so earthed iit out on hitch as had to do an emergency tow and got the in dicators and brake circuits working and sufficed with that in Daytime from Horsted keynes to Nottingham. But now when selecting Rh indicators the bulb Failure flicks on when the Indicator lights are on the off sequence. Tried to load Volvo Information system 2005 and crashed pc as result. Any advice appreciated.

Sep 26th, 2009, 14:39	#2
cumbrianmale Forum Support Team Last Online: Apr 22nd, 2024 12:22 Join Date: Mar 2006 Location: Deep in Makem territory	Moved this to the towing section for better response. __________________ 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

Oct 2nd, 2009, 01:43	#3
JimDay Mad Murdoch Last Online: Feb 3rd, 2021 12:15 Join Date: Nov 2008 Location: Hampshire View Photos By: JimDay	What colour was the wire that you put to earth. The white wire is the earth pin 3 on the socket & should be connected to a good earth on the car chassis at the other end this should help you out. http://www.volvoclub.org.uk/towbar_electrics.shtml __________________ "If It Ain't Broke Don't Try To Fix It" Jim Day 1999 V70 2.5 T SE Auto "ME7" Caravan = 2003 Swift Charisma 550 4 Berth Last edited by JimDay; Oct 2nd, 2009 at 01:52.

Oct 10th, 2009, 22:30	#5
Clan Experienced Member Last Online: Yesterday 22:51 Join Date: Jun 2007 Location: L/H side	If the tow socket wiring has been done correctly It should have no influence on the bulb fail unit at all becuse this is by passed with correct volvo wiring .. The fault is probably a dirty connection on the relavent rear light unit .. __________________ My comments are only based on my opinions and vast experience .

Oct 10th, 2009, 20:46	#4
grollie Junior Member Last Online: Jan 22nd, 2024 16:30 Join Date: Jun 2007 Location: Birmingham	To get a recovery done i disconnected the white wire off the female towplug and put in an emergency earth onto the tow bracket but the tailights still don't work. The bulb failure maybe flickering because of a faulty earth on the righthand light cluster but not sure as haven't had time to look at fully. all the lights seem to work so when i get will give report.

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