Canon EOS REBEL T3i/EOS 600D Error Err 01

Canon EOS REBEL T3i/EOS 600D · taken from the manufacturer’s manual, pages cited

Error codeErr 01

Err 01 indicates a faulty communication between the camera and lens. The manual's first action is: “Clean the lens contacts.”

Model
Canon EOS REBEL T3i/EOS 600D
Display shows
Err 01
Type
Error code
Source
Manual p. 287

What Err 01 means

Communications between the camera and lens is faulty. p. 287

Common causes

  • Communications between the camera and lens is faulty. p. 287
  • Clean the electrical contacts on the camera and lens and use a Canon lens (p.15, 18). p. 287
  • Err 01 p. 287

What to do

  1. Clean the lens contacts. p. 287

If Err 01 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Canon service.

Open the manual at page 287 All EOS REBEL T3i/EOS 600D error codes Manual details & download

This page summarises what the manufacturer’s manual says about Err 01; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Canon. Found a mistake? Report an error.