El del navegador es que te limito la funciones por sobrecalentamiento, creo que la unidad del maletero lleva un ventilador, comprueba que no este obstruido. Te dice que han sido en 15 ocasiones
Te copio el significado segun Ross-Tech del "fault priority"
Number Meaning 0 Undefined by manufacturer. 1 The fault has a strong influence on drivability, immediate stop is required. 2 The fault requires an immediate service appointment. 3 The fault doesn't require an immediate service appointment, but it should be corrected with the next service appointment. 4 The fault recommends an action to be taken, otherwise drivability might be affected. 5 The fault has no influence on drivability. 6 The fault has a long term influence on drivability. 7 The fault has an influence on the comfort functions, but doesn't influence the car's drivability. 8 General Note
Fault Frequency shows how many times the conditions that caused the fault have recurred, during all driving cycles. So, if you have a fault with a Frequency of 11, then conditions sufficient to trigger the fault have happened 11 times since the fault was stored. The counter can have values from 0 to 254. It is incremented with each occurrence of the fault (during all driving cycles)