2003 LED vehicle light tester

This LED tester tests all lighting functions necessary for safe driving on vehicle trailer light sockets and trailer plugs.

The LED indicates the respective defective wire colour.

It checks all 7-pin sockets and plugs and includes two adapters for testing all 13-pin sockets and 7-pin plugs.

Both adapters can also be used between a 13-pin towing vehicle and a 7-pin trailer and vice versa.

Power consumption via 9-V block battery (not included).