Brake lights not working.

Matthews 855 T5 · Mar 8th, 2009, 20:38

I realise this maybe in the wrong section. But please bear with me as I am sure my issue is related to the tow hitch wiring.

My brake lights stopped working at roughly the same time as my tow hitch was knocked by a concrete bollard (oops my fault) consequently the tow hitch wiring suffered. When I had a look at the back of the wiring sockets I found several wires had corroded and weren't located in their pins.

I am considering a short or broken connection in the tow hitch wiring the cause of the brake lights not working - very dangerous.

Which pin on the socket (Volvo installed tow hitch, from new 12 years old) is the brake light circuit for the trailer/van/horsebox? What colour wiring is the brake light circuit for the tow hitch?

Thanks,
Matt

outnumbered · Mar 8th, 2009, 21:25

Quote:

Originally Posted by theprancingmoose

I realise this maybe in the wrong section. But please bear with me as I am sure my issue is related to the tow hitch wiring.

My brake lights stopped working at roughly the same time as my tow hitch was knocked by a concrete bollard (oops my fault) consequently the tow hitch wiring suffered. When I had a look at the back of the wiring sockets I found several wires had corroded and weren't located in their pins.

I am considering a short or broken connection in the tow hitch wiring the cause of the brake lights not working - very dangerous.

Which pin on the socket (Volvo installed tow hitch, from new 12 years old) is the brake light circuit for the trailer/van/horsebox? What colour wiring is the brake light circuit for the tow hitch?

Thanks,
Matt

hi matt.
try this. http://www.volvoclub.org.uk/towbar_electrics.shtml
mike

JimDay · Mar 11th, 2009, 07:01

Pin 6 is the brake light it's a red wire, could be it has bridgec to the white wire pin 1 which is the earth wire (or another wire) & may have blown the brake light fuse on your car

Matthews 855 T5 · Mar 11th, 2009, 19:11

Thanks for the replies. I found the problem was the brake light switch.
I have disconnected the tow hitch wiring in the boot so hopefully no problems from that in the future.
Matt

Mar 8th, 2009, 20:38	#1
Matthews 855 T5 Master Member Last Online: Apr 16th, 2024 13:36 Join Date: Dec 2006 Location: York	Brake lights not working. I realise this maybe in the wrong section. But please bear with me as I am sure my issue is related to the tow hitch wiring. My brake lights stopped working at roughly the same time as my tow hitch was knocked by a concrete bollard (oops my fault) consequently the tow hitch wiring suffered. When I had a look at the back of the wiring sockets I found several wires had corroded and weren't located in their pins. I am considering a short or broken connection in the tow hitch wiring the cause of the brake lights not working - very dangerous. Which pin on the socket (Volvo installed tow hitch, from new 12 years old) is the brake light circuit for the trailer/van/horsebox? What colour wiring is the brake light circuit for the tow hitch? Thanks, Matt __________________ Get that kettle on!

Mar 11th, 2009, 07:01	#3
JimDay Mad Murdoch Last Online: Feb 3rd, 2021 12:15 Join Date: Nov 2008 Location: Hampshire View Photos By: JimDay	Pin 6 is the brake light it's a red wire, could be it has bridgec to the white wire pin 1 which is the earth wire (or another wire) & may have blown the brake light fuse on your car __________________ "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

Mar 11th, 2009, 19:11	#4
Matthews 855 T5 Master Member Last Online: Apr 16th, 2024 13:36 Join Date: Dec 2006 Location: York	Thanks for the replies. I found the problem was the brake light switch. I have disconnected the tow hitch wiring in the boot so hopefully no problems from that in the future. Matt __________________ Get that kettle on!

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