focus-issue Troubleshooting

Autofocus not working on the Nikon D40 Digital SLR Kamera w/ 18-55mm Lens

Source: iFixit — repair guides & answers Confidence: 60% Verified Aug 9, 2026

The camera autofocus does not work, often due to a dirty lens or a focus motor issue.

How to fix Autofocus not working

Clean the lens

Clean the lens with a microfiber cloth.

Source: iFixit — repair guides & answers Confidence: 60% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Check the focus mode

Ensure the camera is in autofocus mode and the lens is set to AF.

Source: iFixit — repair guides & answers Confidence: 60% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

Replacement parts for the Nikon D40 Digital SLR Kamera w/ 18-55mm Lens

← All Nikon D40 Digital SLR Kamera w/ 18-55mm Lens error codes

As an Amazon Associate we earn from qualifying purchases. Prices and availability are accurate as of the time shown and may change. We research product data independently.