Diagnostics & Warning Lights
If your check engine light is on, we'll find the issue quickly using the latest diagnostic tools.
Why Getting It Checked Early Matters.
A warning light rarely means nothing. Ignoring it can turn a small, cheap fix into an expensive repair down the track.
We identify the exact fault, not just clear the light and hope it doesn't come back.
We use up-to-date diagnostic equipment to read what's actually happening under the bonnet.
We explain what the fault means in plain language, so you know exactly what you're dealing with before any work begins.
Catching the problem early keeps small issues small, and keeps you safely on the road.
Diagnostics & Warning Lights, what we handle
A warning light or dash symbol can mean dozens of different things — our job is to narrow it down fast and give you a straight answer.
Here's a look at common diagnostic work, carried out by experienced technicians every time.
Check engine light: identifying engine, sensor, or emissions-related faults.
ABS and brake warning lights: diagnosing braking system faults for safe, reliable stopping.
Battery and charging system alerts: testing alternators, batteries, and electrical faults behind dashboard warnings.
Unusual noises or performance changes: pinpointing the cause of new sounds, rough idling, or loss of power.
Sensor and computer faults: reading fault codes directly from your vehicle's onboard computer.
Pre-purchase and general health checks: a full diagnostic scan to catch issues before they become bigger problems.
We use quality diagnostic tools and proven fault-finding methods, backed by Repco Authorised Service and VACC membership standards, so you get an accurate answer, not a guess.
At Paulo's Automotive Shepparton, we won't recommend work you don't need. Once we've found the fault, we'll explain what's causing it and what your options are, so you can make an informed decision about the repair.
Diagnostic FAQs
It can mean anything from a loose fuel cap to a serious engine fault. The only way to know for sure is a proper diagnostic scan, which reads the fault codes directly from your car's computer.
It depends on the light and the fault. Some warnings mean it's fine to drive carefully to your nearest service, while others (like oil pressure or brake warnings) mean you should stop immediately. If you're unsure, give us a call and we'll advise you over the phone.
Most diagnostic scans can be done same-day. If the fault needs a deeper investigation or a part ordered, we'll give you a clear time estimate once we know what we're dealing with.
Yes. We'll always explain what the diagnostic scan found and what we recommend before carrying out any work, so you're never caught off guard by unexpected repairs.