The invention discloses a universal automobile combination
instrument function detection device and relates to a tester. The universal automobile combination
instrument function detection device comprises a
power module, an input detection module, a single-
chip microcomputer module, a frequency pulse
signal module, a
resistor signal module, a switch
signal module, a CAN communication port and a
serial port, wherein the
power module supplies power to the single-
chip microcomputer module, the input detection module detects whether input data is correct and inputs detected input data to the single-
chip microcomputer module, and the single-chip microcomputer module respectively outputs corresponding data signals; and the frequency pulse signal module, after receiving pulse signals outputted by the single-chip microcomputer module, outputs corresponding frequency signals to an instrument, the
resistor signal module, after receiving
resistor signals outputted by the single-chip microcomputer module, outputs corresponding resistor signals to the instrument, and the switch signal module outputs switch signals outputted by the single-chip microcomputer module to switches. The universal automobile combination
instrument function detection device has the advantages of high versatility,
lightness, convenience, low cost, high production efficiency and the like, thereby being applied to various occasions including production, examination, service after sale and the like of an automobile combination instrument.