EV electrical diagnostics — safe, precise, certified
Joldesk Sydney offers specialised electrical diagnostics for electric and hybrid vehicles: battery management systems, inverters, high-voltage circuits and charging systems checked by certified technicians.
- Phone: +61429758341
- Address: 12 King Street, Sydney NSW 2000
- Service: On-site diagnostics, ECU inspection, HV safety protocols
What we inspect
Comprehensive electrical checks focused on EV safety and performance.
- Battery management diagnostics (BMS)
- High-voltage system integrity & insulation tests
- Inverter and motor electrical checks
- Charging port and onboard charger inspection
- ECU fault code analysis and software health
Our diagnostic workflow
- Safety isolation: HV systems made safe for inspection.
- Scan & readout: ECU and BMS fault logs retrieved.
- Hardware tests: Insulation, continuity, and battery cell scans.
- Functional checks: Charging, regen, and motor circuits tested.
- Report & quote: Clear repair plan with safety prioritised.
Technical snapshot
| Test | Method | Typical duration |
|---|---|---|
| BMS health | OBD & telemetry readout | 30–45 min |
| HV insulation | Megger / high-voltage probe | 20–40 min |
| Inverter check | Load simulation & waveform | 40–60 min |
| Charger port | Voltage/current analysis | 20 min |
Common EV electrical issues (and how we address them)
Workshop gallery
Certified EV technicians
Our technicians complete high-voltage safety training and manufacturer-specific EV courses. We follow Australian safety guidelines for all electrical work.
- HV isolation certified
- Manufacturer/OEM diagnostic access
- Battery pack handling & safe transport
Frequently asked questions
Is it safe to drive with an EV warning light?
If you see HV or BMS warnings, avoid driving and call us — we provide priority diagnostics to assess safety before road use.
Do you handle warranty-related diagnostics?
We perform diagnostics and provide detailed reports and logs to assist warranty claims and manufacturer support where applicable.
Ready for a thorough EV electrical check?
Book diagnostics with our certified team. Fast reporting and safety-first repairs.
