NASA has reported that Mars Curiosity Rover has experenced a soff short/power leak between Curiosity’s chassis and a 32-volt circuit that routes power to systems throughout the rover. The voltage level fell from 11 volts to 4 volts on 17 November. This is the second soft short in this location. On landing the voltage between the chassis and the 32-volt power bus fell from 16 volts to 11 volts. While that voltage reduction did not have an appreciable effect ont the mission, NASA engineers examining whether this latest soft short will reduce the capability of the rover and whether the fault can be fixed.
Mars Curiosity Rover experiences “soft short” reducing bus voltage
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