My 2002 BMW 525i is reading codes P1111 and P1619. Any ideas?

1. The fuse carrier for engine electronics is a small removable fuse block located in the engine control box at the left rear corner of the engine compartment. Check all of these fuses for power and ability to carry current. Visually inspect each fuse for partial melting. 2. Check the heated thermostat. Has a plug connector on top of the thermostat housing for the stat heater. Inspected connector for heat damage. Should have power on one wire with the key on. Electronic Control Unit (ECU) controls ground circuit.