The invention provides a testing device of a
vehicle control unit. The testing device comprises a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, an eighth terminal, a ninth terminal, a tenth terminal, a power source module, a core control module, a PWM
signal generation module, an analogue
signal generation module, adigital
signal generation module, a PWM signal detection module, an analogue signal detection module, a
digital signal detection module and a CAN communication module. The testing device can replacea practical automobile part in the testing work of the
vehicle control unit, complex building work of a testing environment is omitted, the rapid and convenient testing environment is provided for thetesting work, the testing work is greatly simplified, the working cost is obviously reduced, the
system can further be used in a
production line of the
vehicle control unit to achieve rapid detectionof a hardware failure state.