Auto electrical and diagnostics in Provo, UTWarning light on? Find the real cause.
We trace wiring, sensors and battery problems instead of guessing and swapping parts.
Auto electrical & diagnostics
Auto electrical & diagnostics at Fly Fix
A warning light tells you something is wrong, but not what or where.
An OBD-II scan is where we start, and it is never the whole answer.
The code points to a circuit, and then we test that circuit to find the actual fault.
At Fly Fix in Provo, we would rather prove a diagnosis than swap parts and hope.
Symptoms
Signs of an electrical problem
Check Engine light on
A lit Check Engine or other warning light means the computer logged a fault worth reading.
Slow or no start
A slow crank, clicking or a dead battery can come from the battery, starter or connections.
Battery dies overnight
A battery that goes flat after sitting can point to a parasitic drain from a module or light.
Lights flicker or dim
Dimming headlights or a flickering dash often means a charging or ground problem.
Power accessories quit
Windows, locks, wipers or the radio acting up can trace to a fuse, relay or wiring fault.
The process
How the diagnosis goes
Hear the symptoms
Tell us when it happens, such as cold starts, rain or after the car sits.
Scan and test
We read the codes, then use a meter to test the battery, charging and suspect circuits.
Find the fault
We trace wiring and connectors to the exact point of failure and show you what we found.
Repair and verify
We fix it, clear the codes and confirm the light stays off and the car starts strong.
In detail
Where electrical faults hide
Wiring and connectors fail from heat, vibration and corrosion, and they are easy to miss.
Sensors and modules can send bad data, which sets lights and changes how the engine runs.
A parasitic drain is found by measuring current and pulling fuses one at a time until it drops.
Charging problems can be the alternator, the belt, the battery or a loose, corroded cable.
Cold Utah mornings expose weak batteries, so a failing one often shows itself in winter.
Drivers come in from
Our workQuestions
Common questions
Does a code tell you which part to replace?
Not by itself.
A code points to a system, and the real cause still has to be tested.
Why does my battery die after sitting?
Something may be drawing power when the car is off, such as a module, a light or a switch.
We measure the draw and trace it to the circuit responsible.
Can cold weather cause electrical trouble?
Yes, cold lowers battery output and exposes weak batteries and loose connections.
If your car struggles on winter mornings, have the battery and charging system tested.
Do you do computer programming?
No. We do not program or reflash car computers or control modules.
We find and fix the fault in the wiring, sensors, battery or charging system.
More services
What else we fix in Provo
Contact
Tell us what it’s doing.
Text (385) 392-8800, or send the form and we’ll get back to you.
- Mon–Fri
- 8:00 AM – 6:00 PM
- Saturday
- 8:00 AM – 6:00 PM
- Sunday
- Closed
Tell us what it’s doing
We’ll text you back. In a hurry? Text (385) 392-8800.