You could try manually engaging the starter by momentarily applying +12V to the solenoid control terminal. If it spins then you know it's good and the issue is upstream.
https://www.newtis.info/tisv2/a/en/e...-motor/qCNw2b0
Since the starter is buried under the intake manifold, unplug X60556 and apply 12V there.
https://www.newtis.info/tisv2/a/en/e...0i-roa/SCA14zi
https://www.newtis.info/tisv2/a/en/e...i-roa/CT8LMKbB
Goes without saying the car should be in neutral.