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SDLG (Lingong) · 22
Communication error (V-ECU / I-ECU)

What this code means

Communication error between V-ECU and I-ECU.

Applies to: LG6210E excavator.

Possible causes / checks (from the source)

Per the manual: the V-ECU cannot receive the message from the I-ECU (printed identically for codes 21-23).

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (22), machine model and serial number — we quote genuine and OEM replacement parts for export.

Source: SDLG LG6210E Hydraulic Excavator Maintenance Manual, diagnostic code table (pp.763-764), Scribd doc 955818213. Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.