Can you find the tranducer that is sending the signal? your alarm is getting voltage from somewhere, so trace the wire. It's possible that you have a bad sender.
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Never let anything mechanical know that you are in a hurry.
Here’s the fault code list from the manual
Your best chance is to start swapping sensors but alarm events are not necessarily due to a faulty sensor ie boost pressure to fuel quantity and other mismatches of operating parameters.
Best of luck.