Jungheinrich Error Code 0802 | 2025-2027 |

A healthy, terminated CAN-bus network should read approximately . A reading of 120 Ohms indicates an open circuit (broken wire or missing terminating resistor). Preventative Maintenance Tips

When this code displays on your material handling equipment, it means the master interface controller cannot communicate with key peripheral control units (such as traction, steering, or hydraulics) during the truck's initial power-up sequence.

Set your digital multimeter to measure .

If your forklift displays 0802, follow these steps to diagnose the root cause: jungheinrich error code 0802

If you tell me the (e.g., EFG 216k, ETV Q20), I can provide more targeted repair advice. Discussion: ERROR 0802 - Forums - Forklift Action

If this error appears after a technician updates software or alters performance profiles, the cause is likely a parameter conflict. If a profile is modified using diagnostic interfaces without correctly saving the configuration to the vehicle's secure memory space (the Safety Parameter block), the master controller flags the hardware profile as invalid. 🛠️ Step-by-Step Diagnostic & Repair Protocol

: Listen for a solid "click" when you turn the key. If you hear multiple clicks or a buzzing sound, the contactor might be failing. Voltage Test Set your digital multimeter to measure

: The machine may inhibit all travel to protect the motor and transmission.

The following are potential causes for Error Code 0802:

A broken wire, loose connection, or damaged harness in the lift sensor circuit. If a profile is modified using diagnostic interfaces

Troubleshooting Jungheinrich Error Code 0802: Causes, Diagnostic Steps, and Solutions

Error 0802 indicates that the (Vehicle CPU) has lost communication with the Traction Controller (the specific computer managing the drive motor).

: The specific identifier for the fault condition, often linked to conflicting travel signals or low voltage . Primary Causes of Error 0802

| Cause | Fix | |-------|-----| | Corroded connector | Replace pin/socket or whole connector housing | | Broken CAN wire | Repair or replace harness section | | Missing termination | Install 120‑ohm resistor (part no. 51157028 example) | | Faulty control unit | Replace (requires Jungheinrich software coding) | | Low voltage | Charge battery, clean main terminals |

On models equipped with specialized command setups like the Jungheinrich MultiPilot lever or a tiller head assembly, internal potentiometer tracks or Hall-effect sensors can degrade. Hardware breakdown or software corruption within the lever assembly's circuit board prevents it from handshaking over the CAN line. 3. Controller Hardware Malfunctions