The Jungheinrich error code generally points to a communication or CAN bus issue between the truck’s control unit (e.g., the main controller or drive controller) and a connected component.
Use a digital multimeter to check the continuity of all primary strip fuses and secondary control fuses. jungheinrich error code 0802
On the (not the truck harness), locate the two small pins for the temperature sensor. They are usually pins 1 and 2 on a 6-pin connector (check your diagram). Using your multimeter set to Ohms (20k scale): The Jungheinrich error code generally points to a