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quantumfoam

Member Since: 20 May 2016
Location: Newcastle Upon Tyne
Posts: 12

Instrument Panel Tow Light Stays ON

I have a Defender 90 1998 and it has the normal tow hook and 7 pin socket which the previous owner fitted. Since owning the dashboard trailer light has always come on once the ignition is switched on and never goes out other than when the indicators are used then it blinks in time with the indicator panel lights. I have removed the tow socket and it was full of mud and corroded wires. Even when these were separated and cleaned the panel light still stays on. Anyone have any ideas about what may be the problem other than an earth fault which I am busy trying to check.

7th Nov 2016 11:31am

Castillo

Member Since: 23 Nov 2012
Location: Tavastkyro
Posts: 41

I have same problem in my defender td5. I replaced some days ago all old original 73mm lights with new wipac led lights and so this tow light stays on. Why? defender 110 td5 2006

7th Nov 2016 2:27pm

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge

it driven by switch at the top, be place to start on the 300tdi

7th Nov 2016 3:25pm

quantumfoam

Member Since: 20 May 2016
Location: Newcastle Upon Tyne
Posts: 12

Thanks for the electrical schematic it is very helpful. Will let you know if and when I get a solution. In the meantime I have removed the tow ball and socket

7th Nov 2016 4:41pm

quantumfoam

Member Since: 20 May 2016
Location: Newcastle Upon Tyne
Posts: 12

I changed the instrument panel led for an original bulb and everything worked so will leave it like that with original relay for the moment and change out the relay for a one suitable for led's later. Well it also passed the MoT although I had to make sure the smoke out the exhaust was reduced. Did this via a diesel treatment and cleaning out the air intake. As I didn't have a lot of time prior to the MoT test I used a less conventional method than removal of the intake (see attached pics). Now its a proper clean including removal of the intercooler and also the vent system pipes. Thanks for all the help.

12th Nov 2016 5:56pm

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