A properly functioning, terminated CAN network should read approximately (two 120-ohm resistors wired in parallel). A reading of 120 ohms indicates an open circuit or a missing termination resistor, while 0 ohms indicates a short circuit between the data wires. When to Seek Professional Support
If you are seeing "0802" flashing on your Jungheinrich’s display panel, your truck may experience reduced performance, a complete drive lockout, or intermittent shutdowns. This article provides a deep dive into what error code 0802 means, its root causes, step-by-step diagnostic procedures, and practical solutions to get your forklift back in operation.
: Use Jungheinrich JUDIT diagnostic software to check for lost CAN bus packets or specific parameter settings. Summary of Effects When 0802 is active, you may experience: jungheinrich error code 0802
is a traction-related fault. Specifically, it indicates a “Drive Motor Temperature Sensor – Plausibility Error” or, in some technical manuals, a “Communication Interruption with Drive Controller (Temperature Channel).”
In simpler terms: The main truck controller (often the CAN-Bus master) is receiving a signal from the drive motor’s temperature sensor that is either: A properly functioning, terminated CAN network should read
Industry field experience shared across warehouse technician platforms like the Forklift Action Discussion Forums identifies four primary culprits behind this fault: 1. Unresponsive Hardware Controllers
Electronic boards cannot communicate on the CAN bus without steady power. A minor electrical surge can blow a low-amperage fuse, cutting off a single module while leaving the rest of the truck live. This article provides a deep dive into what
Open the main electrical compartment and locate the fuse block.