T

TheWanderers

New Member

• Apr 7, 2024

• #1

My reverse light switch on my 2003 TD5 is faulty and the and the new reverse switch has two black wires with no positive or negative shown on it. How do I know which one is which.

 

T

TheWanderers

New Member

• Apr 7, 2024

• #2

This is the new switch - my current wiring doesn't have the plug on it anymore so its just spliced together.

 

A

Anaconda

Well-Known Member

• Apr 7, 2024

• #3

There are two different switches I do believe, earlier ones have separate spade connectors.

 

T

TheWanderers

New Member

• Apr 7, 2024

• #4

Thanks but yeah but I just need to know which is positive and which is negative.

 

A

Anaconda

Well-Known Member

• Apr 7, 2024

• #5

Does it even fit?
Don't know if it even matters, what's the worst that can happen, not work?

 

miktdish

Guns n Chainsaws

Full Member

• Apr 7, 2024

• #6

TheWanderers said:

Thanks but yeah but I just need to know which is positive and which is negative.

Click to expand...

No you dont as its a Normally Open (NO) switch, when it closes (ie when in reverse) it closes and forms a circuit. There likely isn't a live going through it.
It just joins the wires together and breakes them when not in reverse.

 

tottot

Well-Known Member

• Apr 7, 2024

• #7

As above it does not matter, connect either way.