Services
Computer Diagnostics in Kemah
Warning light on or something just doesn't feel right? We scan your vehicle's computer, test what the codes point to, and show you what we found before any repair.
- 4.9 stars on Google
- Up to 36 month / 36,000 mile warranty
- ASE-certified technicians
How computer diagnostics work
Computer diagnostics means reading the information your vehicle's computers store when something goes wrong. Modern cars have several control modules watching the engine, transmission, brakes, airbags and more, and each one saves trouble codes when it sees a problem.
A code tells us which system has a problem, not always which part failed. A misfire code, for example, could come from a spark plug, an ignition coil, a fuel injector or a vacuum leak. That's why a scan is the start of a diagnosis, not the end of it.
When to bring it in
- The check engine light or another warning light is on.
- The car runs rough, stalls or has lost power.
- Something electrical works one day and not the next.
- The car failed an emissions test.
How we handle it
We connect a scan tool, read the codes and the live data, then test the parts and wiring the codes point to until we find the cause. Then you get photos and videos of what we found and a clear estimate. Nothing gets done until you approve it.
Our ASE-certified technicians work on all makes and models, foreign and American-made, gas and diesel.
Recent computer diagnostics work nearby
What's come through the shop lately
At our Kemah shop
2 computer diagnostics jobs at our Kemah shop in the last 90 days.
Why Does My Check Engine Light Stay On?
Nov 2026
The EVAP purge valve and vent solenoid were not sealing and the rear fuel filler cap was leaking, so we replaced all three.
Why Is My Vehicle Hesitating and Smelling of Fuel?
Nov 2026
The EVAP purge valve was sticking open, so we replaced the EVAP purge control solenoid.
Bacliff
1 computer diagnostics job for Bacliff drivers in the last 90 days, about 3 miles from our Kemah shop.
Why Is My Engine Warning Light On?
Oct 2026
The EVAP purge valve was aftermarket and not sealing properly, so we replaced the EVAP purge control solenoid.
League City
2 computer diagnostics jobs for League City drivers in the last 90 days, about 4 miles from our Kemah shop.
Why Does My F-150 Crank but Not Start?
Oct 2026
The wiring between the crankshaft position sensor connector and the PCM had excessive resistance, so we repaired it with soldered connections.
What we offer
Our computer diagnostics services
Choose from our range of computer diagnostics services.
Check Engine Light
We read the codes, test what they point to and find the real cause. Photos and an estimate before any repair.
Signs you need this: Light came on after getting gas, Flashing check engine light, Light on and the engine runs rough
Vehicle Inspection
Emissions testing for Galveston County registration. If it doesn't pass, you see photos and an estimate first.
Signs you need this: Check engine light on, Battery just replaced or disconnected, Codes recently cleared
No Start Diagnosis
Signs you need this: Cranks but won't start, Clicks or does nothing, Starts, then dies
Why us
Why choose Texas Complete Auto Repair, Lube & Car Wash for computer diagnostics
The cause, not just the code
A code points to a system. We test until we know which part actually failed.
Photos before any repair
You see what we found and get a clear estimate. Nothing is done until you approve it.
All makes and models
Foreign and American-made, gas and diesel, by ASE-certified technicians.
Reviews
What customers say about our computer diagnostics work
4.9 stars on Google from 532 reviews as of November 2026
“Super fast and professional people brought my car for inspection 5/5 stars definitely would recommend”
“Very quick service getting the vehicle emissions inspection and did a complimentary inspection of the entire vehicle. Sent a report of anything needing attention.”
“Very professional and very nice. I only had my inspection done, but will definitely return for other services.”
FAQ
Computer Diagnostics questions, answered
Common questions about our computer diagnostics.
Is a code reading the same as a diagnosis?
What can computer diagnostics find?
My car runs fine. Do I still need the light checked?
Will I know what it costs before you start?
Still have questions?
Call (281) 549-4391Where we work
Computer Diagnostics for drivers near Kemah
Customers bring their vehicles to our Kemah shop from these towns.
Texas Complete Auto Repair, Lube & Car Wash
4.9(532) as of Nov 20264.9 out of 5, from 532 Google reviews, as of November 2026
916 FM 518 East
Mon to Fri, 8:00 AM to 6:00 PM; Sat, 8:00 AM to 5:00 PM; Sun, closed
Book a time, or call and we'll set it up
Free shuttle, loaner cars available
Early bird and after hours drop off
Up to 36 month / 36,000 mile warranty
On most repairs, nationwide through TechNet
4.9 stars on Google
From 532 Google reviews