A roadworthy certificate requires every vehicle system — including all electrical and electronic systems — to be functioning correctly and safely. When electrical faults prevent a vehicle from passing a roadworthy inspection, specialist diagnosis and rectification is required before the RWC can be issued. At National Auto-Tec, we provide comprehensive pre-RWC electrical inspection and fault rectification services — supporting mechanics, used car dealers, fleet operators and private owners across Melbourne.

Our mobile service comes to your workshop or location — diagnosing and rectifying electrical faults efficiently so your vehicle passes its roadworthy inspection first time.

Pre-RWC Electrical Inspection & Fault Rectification A comprehensive pre-RWC electrical inspection identifies all electrical faults that could prevent a roadworthy certificate from being issued — including fault codes, warning lights, system failures and compliance issues. All identified faults are rectified before the formal RWC inspection — maximising the chance of first time pass.

ABS & Traction Control Compliance Check ABS and traction control systems are a roadworthy requirement on all equipped vehicles. We diagnose and rectify ABS and traction control faults — clearing fault codes and verifying correct system operation.

Airbag & SRS Compliance Check A functioning airbag and SRS system is a roadworthy requirement. We carry out comprehensive SRS compliance checks — identifying and rectifying airbag warning lights, module faults and system errors before the RWC inspection.

Electronic Handbrake Compliance Check & Calibration Electronic parking brakes require correct calibration and operation for roadworthy compliance. We carry out electronic handbrake checks, calibration and fault rectification across all vehicle makes and models.

Lighting System Compliance Check & Repair All lighting systems must be functioning correctly for roadworthy compliance. We diagnose and repair all lighting faults — including module coding for vehicles with electronically controlled lighting systems.

Steering Angle Sensor Compliance Check & Reset After suspension or steering repairs, steering angle sensors require resetting for correct operation and roadworthy compliance. We carry out steering angle sensor resets and calibration across all vehicle makes and models.

Odometer & Instrument Cluster Correction After a legitimate instrument cluster replacement, odometer correction is required to reflect correct vehicle mileage for roadworthy and compliance purposes. We carry out professional odometer correction — documented for compliance and legal requirements.

Modified Vehicle Electrical Compliance Check Modified vehicles require electrical compliance checks before re-registration and roadworthy certification. We assess all electrical modifications against compliance requirements — identifying any rectification needed before formal inspection.

Compliance Documentation & Reporting All compliance work is documented with professional reports — providing mechanics, used car dealers and fleet operators with the paperwork they need for roadworthy and compliance purposes.