Fault code help please

[leedscupra_r]

Can anyone help me out with a few fault codes on a Cupra 2.0tfsi please. Engine management light came on last night, had it pligged in machine and these codes came up

p1602 power supply terminal 30, voltage too low
p3266
p0441

Any help would be much appreciated, Thank you

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[Fmxvxx]

P3266 - Oxygen Sensor B1 S1 Internal Resistance Implausible most likely a worn sensor

P1602 don't worry about this is a stored code that normally presents when the vehicle battery has gotten to low

Cant find any information about p0441