The error code 0802 is almost always a . The code indicates that one of the nodes (an ECU) on the CAN network is not responding. In simpler terms, one of the truck’s main electronic controllers has stopped talking to the rest of the system. When the master controller sends out a message and receives no reply, it logs an 0802 error.
Follow this structured workflow to safely isolate and resolve the issue. Step 1: Execute a Hard Power Reset Turn the ignition key to the position.
Physical connection issues are the most common culprit behind CAN-bus errors. Locate the traction controller module. jungheinrich error code 0802
Jungheinrich periodically releases firmware updates that fix known bugs and improve system stability. Ask your service provider to during annual maintenance.
Moisture causing green oxidation on the CAN-High or CAN-Low pins, isolating data packets. The error code 0802 is almost always a
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: Travel (traction) and lifting functions (hydraulics) are completely locked out to prevent uncommanded movements. When the master controller sends out a message
If your Jungheinrich truck shows error 0802, try these steps in order, ensuring safety procedures (lifting the truck, disconnecting the battery) are followed. 1. Initial Checks (Non-invasive) Power off the forklift, wait approximately seconds, and power it back on.
If you are still experiencing the error 0802 after performing these checks, to get a better idea of what might be happening, it would help to know:
| Cause | Probability | Description | | :--- | :--- | :--- | | | High (60%) | Chafed, cut, or pinched wires between the motor junction box and the controller, often near the drive motor pivot point or under the floor plate. | | 2. Corroded connector pins | Medium (20%) | Oxidation or moisture ingress in the 6-pin or 12-pin Deutsch connector on the drive motor or controller. | | 3. Faulty temperature sensor | Medium (15%) | Internal failure of the thermistor inside the motor winding. Requires motor removal. | | 4. Controller output failure | Low (5%) | Internal damage to the 5V reference rail or input stage of the traction controller (e.g., ZAPI or Curtis). |
Inspect the electrical compartments for any , particularly focusing on the controller circuit fuses. Examine the ignition contactor for damage. 4. CANbus Wiring Inspection