An isolated converter transfers energy while maintaining the intended electrical separation between circuits. A repair must preserve that function as well as restore charging operation.
How to narrow it down
When assessing charger electronics, the repair scope should include the relevant insulation and functional verification required by the vehicle procedure. A unit that produces an output is not automatically ready to return to service if its protective separation has not been assessed.
What to include with the fault report
Send the module identity and any existing insulation-related test report.
Do not substitute components or repair materials that compromise the required isolation. Suitability must be established by qualified specialists.
Speak to AXION
For EV and hybrid diagnostic assessment, send your vehicle details and fault report. Workshop assessment is in Didcot, Oxfordshire. Suitable postal or remote work is confirmed before booking.
Technical background from Infineon. The referenced design explains the principle; the vehicle-specific procedure determines the repair.
Related reading — Combined charger and DC/DC modules can have distinct fault paths. Browse all vehicle-electronics diagnostic notes or return to the repair library.