I. Introduction: The test rig is carried out online testing equipment combination switch according to relevant standards, combined switch can use the test to simulate the real vehicle, enabling online testing equipment technology features a combination of mechanical switches and electrical performance parameters of performance parameters and indicators 1) a combination of the switch automatically installed, the Taiwan panel rotation 0 ~ 90 ° adjustable. Manually toggle, screwing, and other actions of lifting; 2) contacts through various stalls, breaking test; 3) automatically determine the contact failure conditions, and can show which switch and contact problems; 4) Setting failure touch point drop, drop by the set value or number of failures to determine product test results and print test reports; two, to meet the standards: 1, QC / T 218-2002 "car with the steering column combination switch technology" . 2, QC / T 198-1995 "auto switch General technical conditions." Third, the test parameters: a DC power supply: 0 ~ 30V adjustable, 0 ~ 50A adjustable. 2, 0 ~ 100mm adjustable toggle, press 0 ~ 20mm adjustable. Fourth, the test subjects: Automotive combination switch (include: turn signal switch, dimmer switch, wiper switch, cruise switch, washing switch, horn button switch, lighting switch assembly).