F2 Group error path catalyst temperature - Error belonging to group catalyst temperature out of range - P0426 Plausibility of catalyst temperature sensors - Plausibility error (static)
Group error path catalyst temperature - Error belonging to group catalyst temperature out of range - P0426 Plausibility of catalyst temperature sensors -Plausibility error (static)
Hissing noise at expansion valve, Loss of refrigerant.Restriction in refrigerant system.Check receiver-dryer for uniformity of temperature.