Chicago · Near O'Hare
Car Diagnostic & Programming in Chicago
Modern vehicles rely on onboard computers, sensors, and safety systems that need precise diagnostic tools to service correctly. Our Car Diagnostic & Programming team handles everything from a check engine light to full ADAS calibration.
Google reviews
Read what Chicago drivers say
I-CAR & ASE
Certified technicians
All insurers
Claims handled in-house
Since 1952
Family-run in Chicago
5 services in this category
Pick the job you need.
Check engine light diagnostics, emissions test prep, computer and module programming, electrical repair and ADAS calibration.
ADAS calibration
ADAS calibration is performed on-site at 5349 N Northwest Hwy by our own technicians, so your car does not leave the shop or wait on a…
Need adas calibration?Check Engine Light Repair
A check engine light can mean anything from a loose gas cap to a serious issue. C & A Auto Body Shop accurately diagnoses the cause so you…
Need check engine light repair?Car Computer Programming
Modern vehicles rely on onboard computers and modules for nearly everything. C & A Auto Body Shop programs, updates, and repairs these…
Need car computer programming?Car Electrical Repair
Dead battery, flickering lights, or electrical gremlins you can't pin down? C & A Auto Body Shop diagnoses and repairs electrical issues…
Need car electrical repair?Emissions Test Prep
Failed, or worried about failing, your Illinois emissions test? C & A Auto Body Shop diagnoses and repairs the issues that cause emissions…
Need emissions test prep?Not sure what you need?
Send us a photo of the damage and we'll tell you what it takes to fix — no appointment, no obligation.
What customers say
Reviews from Chicago drivers.
“Having been a loyal customer for over ten years, I wanted to express my appreciation for the excellent service I continue to receive. Jorge is consistently professional and very easy to work with. I have always felt confident bringing my BMW 7 Series and Mercedes S-Class to him.”
“I have never met a more professional, attentive and caring team. Javier worked on my car and made sure it was in perfect condition before I left. He explained what was happening with my car so I felt confident in his work. 10/10 would recommend!”
“Great service! I always take my car for repairs to Jorge. He is super knowledgeable and has fair prices. I highly recommend this place.”
How it works
Three steps from photo to fixed.
- 01
Send photos or stop by
Two clear photos are enough to start. No appointment needed.
- 02
Free written estimate
A technician prices the work and gives you a timeline the same business day.
- 03
We fix it
We handle the insurance side, keep you updated, and guarantee the workmanship.
Why Chicago Drivers Choose C & A Auto Body Shop
C & A Auto Body Shop has served Chicago drivers near O'Hare since 1952, with new ownership since January 2026 bringing renewed focus and faster turnaround times. Every estimate is free, and we work directly with all major insurance companies.
Car Diagnostic & Programming in Chicago — free estimate today.
Free, written, and back to you the same business day. Serving Chicago and the northwest suburbs from Northwest Highway.
- Call
- (773) 775-6163
- Hours
- Mon–Fri 8AM–5PM