Canon EF-S 17-85mm f/4-5.6 IS USM lens problems: causes, symptoms, repair tools & how to repair it

In this first video of the series I'm talking about the typical problems with the Canon EF-S 17-85mm f/4-5.6 IS USM lens: ERROR01 message after shooting, aperture doesn't work or the lens can't find focus. I'm talking about what are the symptoms-, and causes of those problems. Which repair tools you will need to repair the lens. And finally, how you can test the lens to make sure it it working perfectly.

TIMESTAMPS:
- 00:00 Intro
- 00:43 Symptoms of the problems
- 03:40 Repair parts needed to repair the lens
- 05:34 Repair tools for disassembling and assembling the lens
- 14:19 Testing the aperture and the autofocus of the lens
- 17:48 Outro

RELATED VIDEOS:
This video is the first part of a video series about repairing the Canon EF-S 17-85mm f/4-5.6 IS USM lens. View my other videos where I show you how to:
2) Disassemble the lens:    • Canon EF-S 17-85mm f/4-5.6 IS USM len...  
3) Replace the aperture flex cable:    • Canon EF-S 17-85mm f/4-5.6 IS USM len...  
4) Disassemble and assemble the USM motor to clean the focus sensor bar/strip:    • Canon EF-S 17-85mm f/4-5.6 IS USM len...  
5) Assemble the lens:    • Canon EF-S 17-85mm f/4-5.6 IS USM len...  

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Repair parts on eBay:
- Aperture cable: https://ebay.us/a2qdjb
- Aperture unit: https://ebay.us/Rgxjcb
- Sensor strip/bar: https://ebay.us/NV1zCU

TOOLS I USED (ebay /// aliexpress link):
- PH000 screwdriver: http://ebay.us/Dz8nTA /// https://ali.ski/2e8ZaZ
- PH00 screwdriver: http://ebay.us/Xo63D7 /// https://ali.ski/ao2sD
- Flat head screwdriver: http://ebay.us/KxaUDk /// https://ali.ski/ViV00
- Plastic spudger: http://ebay.us/JQLobF /// https://ali.ski/7RsFU
- Plastic tweezers: http://ebay.us/cqv5TP /// https://ali.ski/kLGAr-
- Metal tweezers: http://ebay.us/jGp7JO /// https://ali.ski/g4VpW
- Pliers with teeth: http://ebay.us/ObZT6k /// https://ali.ski/pipJL
- Cutting pliers: http://ebay.us/mfQap9 /// https://ali.ski/WPS6v
- Soldering gun: http://ebay.us/Byxij4 /// https://ali.ski/KqYjqY
- Soldering iron: http://ebay.us/OKwNhQ /// https://ali.ski/hI5HS