Car Diagnostic Test Perth

Car Diagnostic Testing from $199/hour

Got a warning light, flat battery, trailer plug issue or electrical fault that keeps coming back? Our auto electricians use advanced diagnostic tools and proper hands-on testing to find the cause of the problem, not just clear a code and hope for the best.

Car diagnostic being performed by an auto electrician

Diagnostics From $199

Clear diagnostic levels based on your fault, vehicle, and testing required.

Beyond Basic Scans

Fault codes are only the start. We test properly to confirm the real issue.

Clear Advice First

We explain what we find before any extra testing or repair work goes ahead.

4.8-Star Google Rating

Trusted by Perth drivers, with a 4.8 Google rating from over 250 reviews.

Electrician viewing a car diagnostic test on a screen

Fast, Accurate Car Diagnostic Testing

Modern vehicles rely on sensors, control modules, wiring, batteries and onboard computers. When one part of the system plays up, it can trigger warning lights, starting issues, flat batteries, lighting problems or strange electrical behaviour.

A diagnostic scan gives us a starting point, but the scan tool is only part of the process. Our technicians interpret the fault codes, test the relevant systems and work through the problem properly.

Whether you drive a Toyota, Nissan, Mazda, 4WD, work vehicle or European model, we can recommend the right diagnostic level for the issue.

AUTO DIAGNOSTICS

OUR 3 DIAGNOSTIC LEVELS

Not every fault needs the same amount of testing. Choose the diagnostic level that best matches your vehicle issue, and we’ll help work out what is going on before the guesswork gets expensive.

LEVEL 1

BASIC DIAGNOSTIC

$199

A Level 1 diagnostic is designed for simpler electrical issues and basic vehicle checks. It is usually the right option for straightforward faults that do not require extended testing across multiple systems.

SUITED TO:

  • Headlight issues
  • Trailer plug issues
  • Basic fault code checks
  • Simple electrical issues
  • Basic diagnostics on Toyota, Nissan and Mazda vehicles

Best for common faults where the issue is fairly isolated and can usually be assessed within a basic diagnostic appointment.

LEVEL 3

SPECIALIST DIAGNOSTIC

$597

A Level 3 diagnostic is for more complex faults that require specialist testing and additional workshop time. This level is recommended when there are several faults present or the vehicle will not start.

SUITED TO:

  • Three or more faults
  • Non-starting vehicles
  • Complex electrical faults
  • Faults across multiple systems
  • Specialist diagnostics for European vehicles

Best when the first fault code may only be a symptom and the real cause needs proper specialist testing.

Not sure which level you need? Tell us what your vehicle is doing and we’ll point you in the right direction.

BOOK A DIAGNOSTIC

Our Google Reviews

Voltaic Auto Electrical
Based on 257 reviews
When every other auto electrician stepped back, Voltaic Auto Electrical Welshpool stepped up and got the job done perfectly on my 2012 Ford Ranger.

A special thanks to Dion and the ret of the team for thier professionalism, knowledge, and honest approach throughout the whole process. Great communication, quality workmanship, and excellent service from start to finish. Highly recommend these guys!
I had Max work on both a 1988 Jaguar and a 1983 Land Rover - 1980s British Car Electrics being what they are it wasn’t simple and Max stuck to it and did a great job
Massive thanks to the team at Voltaic Auto Electrical for the outstanding work on my 2025 Hilux.
I had a full canopy dual battery setup installed including a REDARC Alpha 50 system, lighting, Starlink hard wiring, rear work lights, switches, battery trays and more. From start to finish the communication, workmanship and attention to detail were top notch.
Anthony and the crew treated the build like it was their own vehicle. They called during the install with smart suggestions that genuinely improved the setup instead of just rushing the job. The rear canopy lighting, wiring layout, carpet board, battery mounting and overall finish came out absolutely mint.
Everything was done properly:
clean wiring
quality cable and protection
neat layout
factory-looking finish
tested and explained properly on pickup
You can tell these guys take pride in their work and don’t cut corners.
Couldn’t be happier with the final result and I’d happily recommend Voltaic to anyone wanting a quality touring, camping or 4WD electrical setup done right the first time.
Thanks again boys 👍🔥
Firstclass people, thank you very much...
Absolute legends. Paul helped me secure a part I urgently needed after I’d been struggling to find it elsewhere.
Honestly can't recommend Voltaic enough — took my car in and Dion looked after me from start to finish. Absolute legend. Sorted everything out super quickly, no dramas at all. The guy just knows his stuff, like genuinely knows what he's doing.

Didn't have to chase anyone up, didn't have to second-guess anything — Dion was on it from the moment I walked in. Super helpful the whole way through, kept me in the loop, and you could just tell he takes pride in his work. The kind of sparky you want working on your car.

If you need auto electrical work done, don't waste your time looking around — go to Voltaic and ask for Dion. 10/10, will 100% be back. 🤙
Auto electrician reviewing an auto diagnostic check

What Does a Car Diagnostic Tell You

A car diagnostic test can help identify electrical and system faults across your vehicle. The exact checks depend on the issue, but our diagnostic work may cover:

  • Dashboard warning lights
  • Headlight and lighting faults
  • Trailer plug and towing electrical issues
  • Battery drain and charging faults
  • Central locking problems
  • Starter motor and non-starting issues
  • Air conditioning electrical faults
  • Intermittent electrical faults
  • European vehicle fault codes
  • Multiple fault codes across different systems

A scan tool can show fault codes, but those codes still need to be interpreted properly. Think of it like a mechanic version of reading clues. The scanner points us in the right direction, then the testing confirms what is actually wrong.

How Long Does a Car Diagnostic Test Take?

A diagnostic booking can take 1 to 3 hours or more, depending on the fault, vehicle and number of issues involved.

Simple faults may only require a Level 1 diagnostic. More complex issues, such as battery drains, non-starting vehicles, multiple warning lights or European vehicle faults, usually require a Level 2 or Level 3 diagnostic booking.

If your vehicle has more than one fault, let us know when booking. It helps us allow the right amount of time and recommend the correct diagnostic level from the start.

Car diagnostic test in progress
Auto diagnostic team inspecting a vehicle

How Do Car Diagnostics Work?

  1. We ask what has been happening. You tell us about the warning lights, symptoms, starting problems, flat batteries or strange behaviour.
  2. We recommend the right diagnostic level. We match the booking to the fault type, vehicle and level of testing required.
  3. We scan the vehicle. We connect diagnostic equipment to retrieve fault codes, live data and system information.
  4. We test the relevant systems. Fault codes are only the starting point, so we carry out electrical testing where needed.
  5. We explain the findings. We tell you what we found in plain English.
  6. We discuss the next step. If repairs or further testing are needed, we explain the options before moving ahead.

Why Choose Our Mine Spec Fitout & Fleet Specialists?

Auto electrical faults can be frustrating, especially when they come and go. One day everything works. The next day your dash looks like a Christmas tree. Good fun, until it is your car.

At Voltaic, your vehicle is handled by experienced auto electricians who understand modern vehicle systems, 4WD accessories, batteries, wiring, air conditioning and advanced diagnostics.

We focus on clear testing, honest advice and quality workmanship. If your vehicle needs extra work, we will talk you through it before proceeding.

  • Experienced Perth auto electricians
  • Clear 3-level diagnostic pricing
  • Diagnostics from $199 per hour
  • Advanced scan tools and electrical testing
  • Support for basic, 4WD, fleet and European vehicles
  • Clear explanations before repair work begins

FAQs

What is a car diagnostic test?

A car diagnostic test uses specialist equipment to read fault codes, live data and system information from your vehicle. Our technicians then interpret that information and carry out further testing where needed.

How much does a car diagnostic test cost?

Car diagnostic testing at Voltaic starts from $199 per hour. Level 1 Basic Diagnostics are $199, Level 2 Advanced Diagnostics are $398 and Level 3 Specialist Diagnostics are $597.

 

Why do you have different diagnostic levels?

Different faults need different amounts of time and testing. A trailer plug issue may be simple, while a battery drain, non-starting vehicle or European vehicle fault may require more detailed diagnostic work.

 

What is included in a Level 1 Basic Diagnostic?

A Level 1 Basic Diagnostic is suited to simpler faults such as headlight issues, trailer plug problems and basic vehicle diagnostics on makes such as Toyota, Nissan and Mazda.

What is included in a Level 2 Advanced Diagnostic?

A Level 2 Advanced Diagnostic is suited to battery drains, central locking issues, multiple dashboard warning lights and diagnostics on European vehicles.

What is included in a Level 3 Specialist Diagnostic?

A Level 3 Specialist Diagnostic is suited to vehicles with three or more faults, non-starting vehicles, complex electrical issues and specialist European vehicle diagnostics.

Can you diagnose European vehicles?

Yes. We diagnose European vehicles under our advanced and specialist diagnostic levels because they often need more time, specialist equipment and deeper system testing.

Will a diagnostic scan tell me exactly what is wrong?

A diagnostic scan provides fault codes and data, but it does not always confirm the exact cause on its own. Our technicians use the scan results as a starting point, then test further to confirm the issue.

Can you repair the fault after diagnosing it?

Yes. If we identify the issue and repairs are needed, we can explain the repair options and provide advice before carrying out additional work.

Do I need to book in advance?

Yes, we recommend booking in advance so we can allocate the right diagnostic level and enough workshop time for your vehicle.

Can I book a diagnostic test if there is no warning light?

Yes. Not every electrical fault triggers a warning light. Diagnostic testing can still help with flat batteries, intermittent faults, poor starting, lighting issues, central locking problems and other electrical concerns.