What does it mean when an electric vehicle displays 'M' and won't move?

1 Answers
DeRuby
07/30/25 4:37am
When an electric vehicle displays 'M' and won't move, it indicates a motor malfunction that requires after-sales repair. Below are relevant details about electric vehicles: 1. Types of faults: Electric vehicle faults can be categorized into motor faults, controller faults, battery faults, and charger faults. Motors are divided into brushed and brushless types, with brushed motors gradually being phased out of the market. 2. Diagnosis method: A simple way to check for brushless motor winding abnormalities is to short-circuit the three phase wires (thick yellow, green, and blue wires) of the brushless motor together. Then manually rotate the rear wheel. If there's significant resistance or it won't turn, this indicates the motor is functioning properly.
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