Electric car dashboard voltmeter is broken How to repair

Electric car instrumentation above the indication function is roughly some of the following, power indication, battery voltage, driving speed, lamps and lanterns indication, cumulative mileage, in addition to a variety of functions of the instrument will be undervoltage, overcurrent, temperature, and other detailed instructions, electric car instrumentation is a source of data for the rider, but also a guide.

1, pointer type instrumentation is less integrated, the wiring of the circuit is relatively simple, the instrument circuit does not depend on the controller circuit. Mechanical instrumentation failure is mainly concentrated in the lead or instrument head failure disassembly, the positive and negative poles of the power supply can not be mistaken.

2, LCD display instrumentation is best at a variety of data, such as speed, battery voltage, mileage and other digital accurate display. If it is related to the display driver software and microcontroller model, this instrument once the failure, can only replace the instrument assembly.