Use the Jungheinrich diagnostic software (JET) to check the zero-point voltage of the drive pedal. If it rests outside the mapped tolerance, it will trigger a false activation at startup. Jungheinrich error code 1901

After physical repair:

. This is a safety feature designed to prevent the forklift from moving unexpectedly when you turn it on. Machine Maxx USA Quick Fixes & Troubleshooting

"The steering sensor works on the CAN-Open protocol," Ray narrated, mostly to himself, though Elias was listening intently from the cabin. "It’s a communication network. If one wire is loose, or if there's electrical noise, the signal drops out. The controller waited for a confirmation signal, didn't get it, and timed out. Code 1901."

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