Heavy Vehicle
Auto Electrical
Heavy vehicle auto electrical is a different discipline to passenger car or light commercial work. The systems are more complex, and the environments — mine sites, quarries, remote corridors — demand a technician who arrives equipped and prepared.
Setpoint has been specialising in heavy vehicle auto electrical for over 10 years. It's not something we added on — it's core to what we do, from the same on-site team that handles HVAC and cabin filtration.
One team. Three systems. Auto electrical, HVAC, and cabin filtration from a single callout — less downtime, less coordination.
Our Services
On-site across SA — scope depends on what your machine needs.
Fault Finding & Diagnostics
Advanced scan tool diagnostics — fault codes, live data, and system parameters. Root cause found before any parts are ordered.
Wiring & Harness Repairs
Fault tracing and repair on damaged harnesses, corroded connectors, and failed junction boxes.
Alternators & Starter Motors
Supply, fit, and test across a wide range of heavy vehicle makes. Root cause confirmed before replacement.
Battery & Charging Systems
Battery bank testing and replacement. Full charging system diagnosis including voltage drop and parasitic drain.
CAN Bus & Control Systems
CAN bus fault tracing, module communication faults, and control unit diagnostics across all major platforms.
Lighting & Fit-Outs
LED lighting, GPS and telematics wiring, camera systems, and electrical fit-outs for new or modified fleet.
Diagnose First.
Fix It Once.
The most expensive repair is the one that doesn't fix the actual problem.
Connect & Read
Scan tools connected. Fault codes, live data, and system parameters read across all relevant modules.
Analyse & Trace
Codes interpreted against live data. Physical inspection of suspect circuits at component level.
Confirm Root Cause
Root cause confirmed before any parts are ordered. A code tells you where to look — not what to replace.
Repair & Verify
Repair done on-site, system cleared and retested under operating conditions before we leave.
The Specialist
You Can Rely On
Heavy vehicle auto electrical is what we do — not a side service, not an afterthought. We come to your site, anywhere in SA. We carry the right tools, diagnose the root cause, and fix it once to the right standard. And because we cover auto electrical, HVAC, and cabin filtration under one team, one callout can do the work of three.