31/10/2026
It’s been a week of some properly unusual faults at Kernow Electromotive. The sort that mean getting the oscilloscope out, digging deep into wiring diagrams and actually working out how the computer logic really works.
This is the side of diagnostics I really love.
⚡ Analysing sensor signals and waveforms
⚡ Testing circuits under real operating conditions
⚡ Following faults through wiring diagrams
⚡ CAN, module and control-system diagnostics
⚡ Comparing commanded vs actual operation
⚡ Proving the fault before condemning expensive parts
A scan tool is an essential part of the job, but sometimes a fault code is only the starting point.
When live data doesn't make sense, components have already been replaced, or the fault doesn't fit the textbook description, that's when the scope, multimeter, wiring diagrams and electrical theory come out.
This week has involved everything from strange ABS wheel speed signals and control system faults to chasing inputs, outputs and signals that simply weren't behaving as they should.
And that's exactly the kind of work I've built Kernow Electromotive around:
Advanced vehicle diagnostics, auto electrical fault finding and electronic systems, particularly the awkward jobs that have already left people scratching their heads.
I’ll happily spend an hour staring at a waveform if it means finding the actual fault rather than firing another part at it. 😂
🔌 Kernow Electromotive
Auto Electrical & Diagnostic Specialist
We find the fault. We prove the fault.
