Colour code used in automobile wiring.

Colour code in automobile wiring.

1)    Generally you can see the following colour used in automobile wiring

a)     Black (B)

b)    Brown (N)

c)     Yellow (Y)

d)    Blue  (U)

e)     Red (R)

f)      Purple (P)

g)     White (W)

                                             

2)    Black (B)

Black colour is used for return and earth leads connection.

3)    Brown (N)

Brown is used for the battery feed wires such as,

                               i.            Battery to ammeter

                             ii.            Battery to regulator

                          iii.            Battery to light and ignition switch

                          iv.            Battery to fuses or switches or any electrical accessories

                             v.            Brown is also used in some cases as the main colour for leads (wires) between dynamo to regulator and charge warning lamp.

4)    Yellow (Y)

  Yellow colour is a substitute to brown for dynamo circuit from dynamo regulator     (control box) and between the dynamo charge warning lamps

                                                                

5)    Blue  (U)

Blue colour is used for the head lamp circuit from lighting switch to head lamp.

6)    Red (R)

Red colour is used for the feeds from the lightning switch to side and tail lamps, fog lamps, panel light and rear number plate lamp.

7)    Purple (P)

      Purple colour is used for the feeds to accessories from control box.

8)    White (W)

White colour is used for all feeds from ignition switch.