Is your vehicle’s dashboard flashing warning lights, or is it underperforming without explanation? At Mechanic on Wheels, we eliminate the guesswork with advanced Diagnostics & Programming Services designed to restore your car’s optimal performance.
Using cutting-edge diagnostic tools approved by industry leaders like SAE International and ASE (National Institute for Automotive Service Excellence), our certified technicians connect directly to your vehicle’s Engine Control Unit (ECU). This allows us to swiftly retrieve fault codes, analyse real-time data, and pinpoint issues, from minor sensor malfunctions to complex electrical glitches. By leveraging OBD-II scanners and proprietary software, we ensure precise diagnostics, reprogramming, and system updates tailored to your car’s needs.
At Mechanic On Wheels, we provide professional Vehicle Diagnostics in Perth and surrounding suburbs, we come to you with the right tools, experience, and a clear process to identify what’s actually going on. Whether it’s a Check Engine Light Diagnosis Perth, an OBD2 Diagnostic Perth, or a full Car Diagnostic Test Perth to investigate an ongoing problem, we’ll help you get the truth behind the fault codes and symptoms, then guide you on the best next steps.
We’re a fully licensed mobile mechanic team with 15+ years of hands-on experience across a wide range of makes and models. Our goal is simple: accurate fault finding, honest advice, and reliable repairs without wasting your time or money. Call us today for quick booking 0405 511 324
- Proactive Solutions: Catch and resolve problems early—before they escalate into costly repairs.
- Transparent Process: No second-guessing. We explain fault codes in plain language and provide actionable repair plans.
- Mobile Convenience: Our technicians come to you, saving time and hassle.
Additionally, our Programming Services keep your vehicle’s software up-to-date with manufacturer standards, enhancing performance, fuel efficiency, and safety. For seamless integration, we follow protocols outlined by Automotive News to ensure compliance and reliability.
Did you know? Ignoring warning lights can lead to 30% higher repair costs (Car Care Council). Don’t risk it—schedule diagnostics today!
Beyond Diagnostics: Explore our comprehensive Car Roadside Assistance Services for 24/7 support, including towing, battery jumps, and lockout help.
Trust Mechanic on Wheels to keep your vehicle running smoothly, diagnose, program, and drive with confidence.
We provide a full range of diagnostic services using state-of-the-art equipment. Here’s what we can diagnose and address:
The check engine light is one of the most common reasons Perth drivers contact us for fast and accurate diagnostics. This warning light can be triggered by something small (like a loose fuel cap) or something more serious (such as ignition misfires, sensor failures, or catalytic converter issues).
At Mechanic On Wheels, we perform professional Check Engine Light Diagnosis in Perth using advanced OBD2 diagnostic scanners, live data monitoring, and real-world testing. We don’t just “read codes” we pinpoint the true cause, explain it clearly, and recommend the most cost-effective repair solution.
If your vehicle is running rough, struggling for power, using more fuel than usual, or stalling unexpectedly, it’s time for a proper Engine Diagnostics Perth service. Engine problems can be caused by many systems working together, and replacing parts without testing is the fastest way to waste money.
Our mobile mechanics diagnose petrol, diesel, and many modern systems, including hybrid-related faults. We check key areas such as engine sensors, fuel delivery, ignition timing, air intake, emissions controls, and engine performance data to restore reliability and efficiency.
Most vehicles use On-Board Diagnostics (OBD2) systems that record fault codes when something isn’t performing correctly. But a code alone is not the full story, it’s only a clue.
Our OBD2 Diagnostic Perth service reads both generic and manufacturer-specific codes, giving us deeper access than basic consumer scanners. This enables us to diagnose issues across multiple systems, including engine management, automatic transmission, ABS, airbags, climate control, and body electronics, helping you avoid repeat faults and unnecessary repairs.
A modern vehicle comprises multiple computer modules that “talk” to each other. When one module detects a fault, it can affect drivability, safety, comfort, and overall performance. That’s why we offer full vehicle system scans, not just engine-only scans.
We can scan and diagnose faults in:
- Transmission and gearbox systems
- ABS and braking systems
- Airbag / SRS safety systems
- Climate control and A/C systems
- Suspension and steering systems
- Battery, charging, and starting systems
- Body and convenience electronics (windows, locks, lights, etc.)
This is ideal when your vehicle has multiple warning lights, intermittent issues, or hard-to-identify electrical faults.
Fuel Injectors
Fuel injectors control how fuel is delivered to the engine. If injectors are blocked, leaking, or not firing correctly, you may notice rough idling, hesitation, misfires, poor fuel economy, or hard starting. Our diagnostics use live fuel trim data and performance testing to confirm injector faults and prevent unnecessary replacements.
TCM (Transmission Control Module)
The TCM controls how your automatic transmission shifts gears. If the TCM detects a fault, you may experience harsh shifting, delayed gear changes, transmission slip, or limp mode. Our mobile vehicle diagnostics in Perth can determine whether the issue is electronic, sensor-related, or related to transmission performance.
PCM (Powertrain Control Module)
The PCM is one of the most important computers in your vehicle, controlling both engine and transmission behaviour. PCM faults can cause poor performance, stalling, starting issues, warning lights, and unpredictable driving problems. We run advanced scans and data checks to determine whether the PCM is reporting false faults or reacting to another root cause.
Audio Module
Modern vehicles come equipped with an audio control module that oversees infotainment, Bluetooth, speakers, and communication systems. Sometimes, faults can lead to sound drop-outs, screen glitches, steering wheel control issues, or battery drain. We carefully scan for communication errors and electrical faults to identify the problem accurately, ensuring your vehicle gets back to optimal performance.
Aircon Module
The air conditioning module manages cabin temperature, fan speed, compressor, and sensors. If your aircon isn’t cooling properly, stops randomly, or shows errors, we diagnose the module and sensors to restore comfort.
ABS (Anti-Lock Braking System) Module
The ABS module helps prevent wheel lock-up during emergency braking and supports stability and traction systems. ABS faults may trigger ABS lights, traction control warnings, and reduced braking performance. We diagnose wheel speed sensors, wiring, module communication faults, and hydraulic system issues to ensure safe braking.
Instrument Cluster
Your instrument cluster shows important driving details such as your speed, fuel level, temperature, and warning lights. If you notice the cluster flickering, gauges acting up, or warning lights showing incorrectly, we're here to help diagnose any communication or electrical issues related to the cluster system.
SRS (Supplemental Restraint System)
The SRS system controls airbags and seatbelt pre-tensioners. If the SRS light is on, your airbags may not deploy properly in an accident. Our SRS diagnostics in Perth identify sensor faults, wiring issues, module errors, or seatbelt system problems, ensuring your safety systems are functioning correctly.
BCM (Body Control Module)
The BCM manages many everyday functions including central locking, windows, interior lights, indicators, wipers, and alarm systems. BCM faults often show as strange electrical behaviour, random faults, or battery drain. Our full-system scans help pinpoint BCM-related issues without guesswork.
ICM (Ignition Control Module)
The ICM helps control ignition timing and spark delivery in many vehicles. If it fails, it can cause misfires, no-start issues, stalling, or rough running. We test ignition signals and related sensor input data to confirm the exact cause before replacing components.
ACM (Air Conditioning Module / Amplifier Control Module – vehicle dependent)
Depending on the vehicle, ACM can refer to an air conditioning control module or an amplifier-related control module. Faults may affect cabin comfort, blower operation, air direction, or audio system performance. We identify the correct module type for your vehicle and diagnose it accurately using manufacturer-level scanning.
EPS (Electronic Power Steering)
The EPS system provides steering assistance electronically. If the EPS warning light appears, your steering may feel heavy, inconsistent, or unsafe, especially at low speeds. We diagnose EPS faults by checking steering angle sensors, motor operation, module communication, and voltage supply issues to restore safe steering control.
Perth’s hot climate, stop-start traffic, and long highway drives put extra strain on vehicles. Some of the most frequent issues we see include:
- Oxygen sensor failures
- Mass airflow sensor problems
- Catalytic converter issues
- Ignition coil and spark plug faults
- EVAP system leaks
- Thermostat and cooling system failures
- Battery and alternator problems
- Transmission shift solenoid faults
Many of these can be diagnosed and repaired during the same mobile visit.
Getting your car back to peak performance is easy with Mechanic On Wheels.
- Contact Us: Give us a call at 0405 511 324, . Tell us a bit about the issue your car is having.
- We Come to You: We’ll schedule a time that suits your diary and send one of our experienced mechanics directly to your location anywhere in Perth.
- Detailed Diagnostics: We’ll hook up our advanced OBD2 Diagnostic Perth equipment, perform a thorough scan, and interpret the live data.
- Clear Explanation: We’ll walk you through the results, show you the fault codes if applicable, and explain exactly what needs to be done.
- Onward Action: For many issues, we can perform the repair right there on the spot. For larger jobs, we’ll provide a detailed plan so you know exactly what to expect.
Fully Licensed & Trusted
We’re fully licenced mechanics delivering safe, professional work every time.
15+ Years’ Experience
Strong hands-on expertise in servicing, diagnostics, and repairs across many makes and models.
Mobile Mechanic Perth Convenience
We come to you at home, work, or roadside anywhere across Perth, WA.
Fast Help When It Matters
Quick response for breakdowns and urgent issues with reliable roadside assistance support.
Wide Range of Services
From logbook servicing and oil changes to auto electrical diagnostics, brakes, batteries, starters, alternators and more.
Honest, Upfront Quotes
Clear communication and transparent pricing—no hidden costs or surprises.
Fully Equipped Mobile Workshop
Professional tools and diagnostic equipment to fix many problems on the spot.
Quality Parts & Products
We use genuine or trusted manufacturer parts and high-quality products for long-lasting results.
For more on roadside safety, visit the Australian Government Department of Infrastructure.
Modern vehicles are built to warn you when something is wrong. Ignoring a warning light or a subtle change in performance can turn a small, inexpensive fix into a major repair bill. Whether you need a quick code read or a comprehensive Vehicle Diagnostics Perth service, Mechanic On Wheels is here to help.
