DTC 02 would suggest low battery voltage. Unless you have an old battery you may need to check that the alternator is charging correctly. From your profile pic you may have access to test equipment for this.
No need to say anything nice he is wrong as usual.
https://www.ft.com/content/fea44f00-6e54-4bd0-b722-6b029ad4411c
or even the Guardian
https://www.theguardian.com/business/2025/dec/23/us-economy-gdp-third-quarter