Communications between the camera and lens is faulty. The manual's first action is: “Clean the electrical contacts on the camera and lens. Use a genuine Canon lens, or remove and install the battery again (p.27, 42).”
- Model
- Canon EOS 6D Mark II
- Display shows
- Communications between the camera and lens is faulty. (01)
- Type
- Error code
- Source
- Manual p. 567
What 01 means
Communications between the camera and lens is faulty. p. 567
Common causes
- Clean the electrical contacts on the camera and lens. p. 567
What to do
- Clean the electrical contacts on the camera and lens. Use a genuine Canon lens, or remove and install the battery again (p.27, 42). p. 567
Before you service the product, read the safety instructions in the manual p. 37.
If 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.
This page summarises what the manufacturer’s manual says about 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.