: Corroded connector pins, loose wiring in the junction box, or interference on the CAN bus line can cause signal feedback that the controller misinterprets. Troubleshooting Steps
A controller cannot talk on the CAN network if it has no electrical power. Open the main electrical compartment panel.
: Check the main chassis ground for any loose bolts or rust. Machine Maxx USA 3. Test the Main Contactor jungheinrich error code 0802
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Before calling a technician, follow these immediate measures to diagnose the fault: Perform a Hard Reset: : Corroded connector pins, loose wiring in the
Low battery voltage or faulty power connections can drop communication across the board. Wiring/CAN-bus Faults:
(Based on standard Service Manual procedures) : Check the main chassis ground for any loose bolts or rust
Measure the resistance across the at an accessible diagnostic port.
Look for corrosion or loose pins in the junction box and wiring harness.