possible areas?

Question

what key areas should I physically check before I start replacing parts???

Answer 1

P0562 Battery voltage low

Check the charging system and the battery along with the connections.  P0562 is most set due to the battery or charging condition have those area resolved first, if the problem is still present and the charging system is good along with the battery you would need to determine which module set this code. Either the engine management set this code or the transmission module set thise code.