
Modern Car
Diagnostics &
Expert Repairs
John Wire Auto Garage is Nyeri's specialist in OBD2 diagnostics and advanced car wiring — backed by complete mechanical, panel-beating and spray-painting services under one roof.
Full-service garage,
specialist results.
OBD2 Diagnostics
Pinpoint fault scanning across modern petrol & diesel ECUs.
Auto Electrical & Wiring
Our specialty — harness repair, ECU and sensor work.
Mechanical Repair
Engine, transmission, suspension and brake overhauls.
Panel Beating
Accident repair and structural panel restoration.
Spray Painting
Color-matched finishes and full bodywork respray.
Service & Maintenance
Routine servicing that keeps your vehicle dependable.

Advanced wiring
done right.
Modern vehicles are computers on wheels. From intermittent shorts to full harness rebuilds, ECU communication faults, sensor failures and aftermarket installs — we trace the problem to its source and fix it once.
- Live ECU data analysis
- Wiring harness repair & rebuild
- CAN-bus & sensor diagnostics
- Aftermarket alarm & accessory wiring

Got a warning light? Let's diagnose it.
Bring your car to Total Muhoya, Baden-Powell Road, Nyeri — or call ahead and we'll have the bay ready.