Difflock switch staying on..?

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 26, 2011

• #1

Have just changed my difflock switch as it was not working - found a wire not connected to the old one but as I had bought a new one, I changed it anyway. Weird thing is that the light works when not in difflock, but goes out when put into difflock... Any bright ideas?

 

Oldseadog

Well-Known Member

Posts

9,270

Location

Tynemouth

• Nov 26, 2011

• #2

Have you wired it to the switch properly?

It sounds as though it is wired up to the NC conections rather than NO, which would give you an indication when you are in normal drive rather than in diff lock.

 

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 26, 2011

• #3

All I did was screw the new switch in and attach the two wires to the terminals at the top - didn't think even I could mess that up! Assume there is only one type of switch...

 

jamesmartin

Well-Known Member

Posts

91,879

Location

louth lincs

• Nov 26, 2011

• #4

how far did you wind switch in there not supposed to go all the way otherwise light may stay on and diff lock selector will be jammed from moving,i set them with continuity tester in enough to connect the two contacts ,but you could keep trying with light turn it enough to bring light on then back till off then in till just works everytime,switch has live breaks earth so one swide to earth the other to dash.prc2911 is switch

 

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 26, 2011

• #5

have tried backing it off a little but no joy - it just goes off completely. I have not screwed it in all the way - I put the lock nut from the old switch on the new switch - assume that is correct. There seemed to be only two wires to use - both feed back to a bundle of other wires, two of which seem to go to the reversing light switch...

 

jamesmartin

Well-Known Member

Posts

91,879

Location

louth lincs

• Nov 26, 2011

• #6

you may have wrong wire fitted difflock usualy has one and one earthed but depends on where earth is earthed ,fit one to earth ie bolt on t/box and try one of other wires

 

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 26, 2011

• #7

will have another look - neither of these are fitted to transfer box..

thank you for your guidance!

 

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 26, 2011

• #8

one wire live, one earth definitely... plunger bit works fine before installing..

 

archwayanimal

Active Member

Posts

191

Location

Oxfordshire

• Nov 27, 2011

• #9

Sorted, many thanks for assistance. Just had to screw it in with difflock engaged then tweak a bit until light came on.