green light that is a power light and the red light that is a CAN communication light will remain
lit and flash respectively. The other two yellow lights are respectively the short or open circuit
lights for the No.1 circuit and the No.2 circuit. There are two circumstances of open circuit:
Complete open circuit or partial open circuit. If there are more than 20 loss faults in a single
circuit, it will be regarded as a partial open circuit.
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