Hyster Forklift Fault Code 3701-15 Hot! (REAL)

The harness connecting the VCM to the traction controller often passes through bulkhead connectors under the floorplate. Moisture, battery acid vapors, or vibration can corrode pins, especially on and pin 5 (CAN-L) .

Once the soot is cleared via a successful regeneration, the system should automatically reset the diagnostic counter. If the code persists after cleaning, you may need to access the Hyster service menu to manually clear stored faults. button sequence hyster forklift fault code 3701-15

Malfunctioning differential pressure sensors or temperature sensors can provide "out-of-range" data, triggering the code even if soot levels aren't critical. Wiring Issues: The harness connecting the VCM to the traction

If the code persists after a successful regeneration, you may need to clear the history through the dash: battery acid vapors