Vauxhall cavalier wiring for a towbar?

Answer

As the Cavalier is not CAN bus controlled you can connect directly to the car's

wiring loom

no.....................ref.....................colour.................................function

1.......................54l.....................Yellow................................N/s indicator

2.......................54g....................Blue...................................R/fog lamp or blank

3.......................31......................White.................................Earth

4........................R.......................Green.................................O/s indicator

5.......................58R....................Brown................................O/s tail light

6.......................54......................Red.....................................Stop lights

7.......................58L....................Black....................................N/s tail & no plate.