corsa c 1.2 twinport

[Rizzla20]

i have 2 codes from op-com

P0443 - Fuel Tank Ventilation Open Circuit
(04) - Intermittent

B1485 - Exciter Current Generator Terminal 61 Low Voltage
(02) - Not present

Can anyone point me in the right direction to fix this please

[Dunker]

Not present B1485 is on a lot of Corsas. If its charging ok I'd ignore it. P0443 is the purge valve. Check voltage feed to plug, resistance across terminals and continuity from plug to ECU.