looking to fit a reversing senser But do not know which color wire going to the rever

[rong]

hi all new to this club looking for some help.i have 2002 ml270cdi and looking to fit a reversing senser But do not know which color wire going to the reversing light to use, any one know please

 

[BlackC55]

Just pop it in reverse with the ignition on and no other lights switched on and whatever wire has 12V on it is the reverse light.

 

[rong]

Just pop it in reverse with the ignition on and no other lights switched on and whatever wire has 12V on it is the reverse light.

hi thanks there is no wire exposed so can this be done without removing any wire plastic casing,hence why i was asking about color codes
thanks ron

 

[stchris356]

Remove the connector to the lamp cluster and using a test light or volt meter probe the connections on the plug to identify which is the correct wire!