LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

KUKA Error 2149 — 'ENDSWITCH' MISSING

Displayed as KSS02149 on KRC4 / KRC5 controllers

KUKA 2149 (“'ENDSWITCH' MISSING”): The “SWITCH” loop has not been terminated with “ENDSWITCH”. First check: Modify the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

The “SWITCH” loop has not been terminated with “ENDSWITCH”.

Effect

The program is not executable.

Troubleshooting

Modify the program.

Related codes

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →