Contents: 1 x CAN Bus 13 and 7-Pin Towbar Socket Tester. This socket tester is designed for use with 12V CAN Bus systems. System: CAN Bus. 1 2 3 4 5 6 7 8 9 10 11 12. It efficiently tests 13 and 7-pin sockets fitted to the rear of vehicles using the supplied adaptor.
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