14 · Body & interior

Trailer Hitch (Electrical Components): Description and Operation

AccessoriesElectrical Components

Electrical Components

The Omega - B is the first model to use a 13 - pin socket for the trailer hitch. The terminal assignments are listed on the inside of the cover.

Assignment plan for 13 - pin socket (ex works):

Contact assignment			Cable colour		Lead cross
				section in mm²
Ter. 1	Turn signal unit, left	black / white		0.75
Ter. 2	Rear fog lamp	black / blue		0.75
Ter. 3*)	Ground (for circuits Ter. 1 to 8)	brown		1.5
Ter. 4	Turn signal unit, right	black / green		0.75
Ter. 5	Right tail lamp, marker lamp,	grey / red		0.75
	side lamp and license plate lamp
Ter. 6	Brake lamp	black / yellow		0.75
Ter. 7	Left tail lamp, marker lamp,	grey / black		0.75
	side lamp and license plate lamp
Ter. 8	Unoccupied
Ter. 9	Current supply (permanent positive)	red		2.5
Ter. 10	Unoccupied
Ter. 11	Unoccupied
Ter 12	Unoccupied
Ter. 13*)	Ground (for circuits Ter. 9 to 12)	brown		2.5

The two ground leads must not be electrically connected in the trailer hitch.

A mechanical contact in the 13 - pin socket switches off the rear fog lamp during trailer operation.

Parts & tools for this job For Vauxhall Omega

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