... ignition module, frequency and pulse width control solenoid valve, stepper motor drive (four-lane, six-lane), car audio amplifiers, ... simulation for Ignition coil, injectors, idle speed stepper motor, ultrasonic generators etc.Strong domestic first-line five-channel ... current 1A, applicable to all vehicles with four, six, stepping motor driver;5. Ammeter maximum test current: 5APacking List:1, ...