Comprehensive Mobile Auto Electrical Solutions for Cars, Trucks & Heavy Diesel Equipment
At East Coast Diesel & Auto Electrical, we deliver end-to-end auto electrical services that keep your cars, trucks, and diesel machinery operating safely and efficiently.
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Keeping You Powered: Comprehensive Auto Electrical Services & Repairs
When your vehicle’s electrical system fails, productivity stops. From advanced diagnostics to battery replacement and complex wiring repairs, our fully mobile team brings expert solutions to your site — reducing downtime and eliminating the need for towing or workshop delays.
Whether you manage a large transport fleet or rely on a single work ute, we’re your trusted mobile auto electrician in Maitland and the Hunter Region, combining hands-on expertise with dealer-level technology.
What Our Auto Electrical Services Include
At East Coast Diesel & Performance, our core auto electrical services are the backbone of what we do. Whether you’re operating a fleet of trucks, an earthmover, or a heavy-duty ute, your vehicle’s electrical systems need to function reliably under pressure. We tackle everything from full wiring replacements, switch repairs, sensor troubleshooting, and custom electrical setups for heavy vehicles.
Electrical systems are the lifeblood of modern vehicles. Our technicians provide a complete range of auto electrical repair and maintenance services to suit every vehicle type — from heavy trucks to utes and plant machinery.
Our core services include:
Full wiring repairs and rewiring for heavy vehicles and trailers
Lighting system installations and upgrades (LEDs, work lights, beacons, indicators)
Battery testing, charging, and replacement
Alternator and starter motor repairs or replacement
ECU and module programming for diesel and petrol vehicles
Air conditioning and HVAC electrical diagnostics
Switch, fuse, and relay troubleshooting
Custom electrical setups for accessories, reverse cameras, GPS trackers, and safety systems
Each service is carried out using high-grade components designed for demanding commercial and off-road conditions.
Our team is adept at installing, upgrading, or repairing essential components like:
- Lighting
- Gauges
- Relays
- Connectors and harnesses
We also work with aftermarket electrical accessories, ensuring they integrate safely and efficiently. Based in Maitland, we understand the demanding requirements local industries place on vehicles exceeding 3 tonnes and offer tailored, on-site services that minimise downtime. All work is completed using durable, commercial-grade components with workmanship guaranteed.
When warning lights appear on the dash or your truck goes into limp mode, the issue often lies deep within the vehicle’s electronic system. Our technicians perform advanced auto electrical diagnostics using modern scan tools compatible with most heavy-vehicle brands.
We can detect and repair faults in:
Engine control units (ECU)
Transmission and ABS modules
SRS and airbag systems
CAN bus communication faults
Electronic throttle and sensor networks
Unlike a basic code reader, our diagnostic process doesn’t just identify the fault — we trace the cause, interpret the data, and test every related circuit or module.
If your vehicle’s check-engine light, battery symbol, or airbag light has appeared, our mobile diagnostic service can arrive on-site to assess and repair the problem.
If your heavy vehicle won’t start or seems slow to crank, it’s often a clear sign of issues within the starting and charging system. We specialise in diagnosing and repairing battery, alternator, and starter motor problems for trucks, machinery, and other diesel vehicles. Our mobile team offers thorough battery testing, load checks, charging system evaluations, and voltage drop tests.
Electrical starting issues are among the most common breakdown causes for diesel and heavy vehicles. We provide complete starting and charging system diagnostics — covering alternators, starter motors, and batteries.
Our process includes:
Load and voltage testing
Visual and circuit inspection
Component isolation testing
Heavy-duty battery replacement and recycling
Alternator regulator and bearing service
When required, we fit OEM-grade or equivalent replacements and ensure your charging system maintains the correct voltage range. From sluggish cranking to repeated flat batteries, we’ll identify and fix the root cause quickly.
Should a battery be flat, sulphated, or no longer holding charge, we’ll recommend and install a heavy-duty replacement suited to your application. Issues like worn bearings or regulator faults in alternators can cause ongoing electrical problems. We carry and source high-quality parts, offering both replacements and servicing to restore full electrical function and keep your equipment working reliably.
On-the-Spot: Emergency & Roadside Electrical Repairs
Breakdowns rarely happen at a convenient time. That’s why East Coast Diesel & Electrical offers fast-response mobile roadside auto electrical services across Maitland, Rutherford, Cessnock, Kurri Kurri, and beyond.
If your vehicle doesn’t start, is experiencing electrical failure, or has lost power mid-operation, we can be on-site quickly to get you moving again. We’re equipped to diagnose urgent faults on the spot – whether it’s a battery failure, alternator issue, blown fuse, faulty wiring, or other system fault. Our goal is to reduce your downtime and avoid unnecessary towing costs.
Electrical safety and reliability depend on clean, professional wiring. We handle everything from minor loom repairs to full wiring replacements on trucks, excavators, and agricultural machinery.
We install and service:
LED work and driving lights
Custom switch panels
Trailer plugs and wiring harnesses
Safety lighting and beacon systems
Central locking, electric windows, and accessory circuits
All installations are designed to meet manufacturer standards and Australian electrical safety regulations. We also offer integration for aftermarket accessories, ensuring compatibility with your vehicle’s electrical system.
As our name suggests, East Coast Diesel brings specialist knowledge of diesel auto electrical systems across trucks, civil machinery, and agricultural equipment. These platforms have more robust electrical loads, advanced ECU programming, and unique fault behaviours.
Our diesel electrical services cover:
Injector and glow-plug wiring
Fuel rail sensors and control systems
Intake and exhaust sensor troubleshooting
Engine-brake and transmission interface faults
Mining and construction equipment electrics
With over 15 years’ experience, our team understands the unique pressures heavy industries face — from mining haul roads to construction sites. We provide dependable, on-site electrical repairs that help you avoid expensive towing or workshop downtime.
Electrical problems often begin subtly before causing a complete breakdown. Recognising early warning signs may save you from costly downtime.
Common electrical symptoms include:
Vehicle won’t start or intermittently cranks
Flickering headlights or dash lights
Warning light appears suddenly
Loss of power to accessories
Blown fuses or burning smell from wiring
Air-con, radio, or gauges stop working
If you’re experiencing any of these, it’s best to book an inspection as soon as possible. We’ll run a full diagnostic scan, check circuits, and provide a clear explanation of the issue before proceeding with repairs.
Preventative electrical maintenance saves businesses thousands in lost productivity. We recommend scheduled inspections for all commercial fleets and machinery operating in harsh conditions.
Our preventative maintenance checks may include:
Battery load and charging system tests
Alternator belt and connection checks
Electrical connection cleaning and sealing
Corrosion inspection for terminals and harnesses
Periodic ECU scans and software resets
For fleet operators, we can design custom maintenance programs to minimise downtime and ensure compliance with WHS and transport regulations.
How Our Service Works
Tell us what's wrong
Give us a call and describe the issue.
We dispatch a technician
Our mobile auto electrician will be on their way to your location.
On site service or diagnosis
We'll diagnose the problem and carry out repairs right where you are.
Get back on the road
With your vehicle fixed, you can get back to work with minimal delay.
Follow-Up Support
We stand by our workmanship and provide maintenance advice to prevent future faults.
Getting your heavy vehicle back on track is straightforward with East Coast Diesel.
Whether it’s a breakdown, an ongoing fault, or preventative servicing, you can count on us for professional workmanship and honest communication from start to finish.
Why Choose East Coast Diesel
Choosing the right auto electrician makes all the difference in reliability, safety, and uptime. Here’s why local businesses across Maitland and the Hunter rely on us:
✔ Heavy-Vehicle Specialists: We’re equipped for trucks, utes, and earthmoving equipment — not just passenger cars.
✔ Fully Mobile Service: We come to you anywhere in Maitland, Cessnock, Rutherford, or Kurri Kurri.
✔ Fast Turnaround: Same-day callouts for urgent repairs where possible.
✔ Diagnostic Expertise: Dealer-level scan tools and modern software for accurate results.
✔ Guaranteed Workmanship: Every repair and installation is completed to high trade standards.
✔ Locally Owned & Operated: Personalised, honest service from a qualified technician who knows your industry.
Frequently Asked Questions
Have questions about our auto electrical services? We’ve got answers.
Do you work on both diesel and petrol vehicles?
Yes, we use advanced diagnostic tools for all heavy vehicles.
Can you come to my worksite or roadside location?
Absolutely. We provide mobile on-site electrical services across Maitland and surrounding regions, including Cessnock, Rutherford, and Kurri Kurri.
What should I do if my truck’s warning light comes on?
Stop the vehicle if safe to do so and contact us immediately. A diagnostic scan may reveal whether it’s safe to continue operating or if urgent attention is required.
How long does an auto electrical repair take?
Minor faults like blown fuses or wiring repairs may be completed on the spot. More complex issues (ECU or alternator faults) are usually resolved within a few hours, depending on parts availability.
Do you provide emergency callouts?
Yes, we offer rapid response mobile breakdown repairs to reduce downtime.
Serving Commmunities across Central Coast NSW
Get Reliable Auto Electrical Support You Can Count On
From diagnostics and wiring repairs to full electrical overhauls, East Coast Diesel delivers expert auto electrical services that keep your vehicles and machinery running at peak performance. Call us today to schedule a service or request a site visit anywhere in Maitland or the surrounding Hunter region.
