Changes to NCT service introduced

Ireland has become amongst the first EU Member States to commence the use of On-Board Diagnostics (OBD), testing under the EU Roadworthiness Directive.

OBD testing has come on-stream on a phased basis as part of the NCT test since Monday, June 21.

In this initial phase, the NCT OBD scanner will only scan the OBD system for the following in your vehicle: Vehicle Identification Number (VIN), Odometer Reading, Electronic Braking System (EBS) and Anti-lock Braking System (ABS).

If an OBD error code is detected, it now results in the vehicle receiving an 'Advisory Pass', provided the vehicle passes on all other assessed items. From early 2022, if an error code is detected, this may constitute a reason for 'failure'.

This approach is designed to enable vehicle owners and the automotive industry to become familiar with this change to the NCT process.

“The NCT vehicle inspector will plug the OBD scanner into the vehicle's OBD computer port known as the DLC (data link connector),” explained NCTS managing director Mark Synnott.

He pointed out that this port is usually located under the steering wheel but may also be found in the glove compartment of the vehicle.

“This OBD scanner will quickly indicate whether the vehicle passes, it also helps and alerts the vehicle inspector to any possible malfunctions with the vehicle.”

Manual

A new version of the NCT manual also came into operation on June 21. The manual lists each item on which a car will be tested and lays down the test method and pass/fail criteria to be adopted for the compulsory road-worthiness testing of passenger vehicles. It provides guidance to the public and the automotive industry on why a vehicle may fail the NCT and the categorisation of defects.

Where a number of deficiencies is recorded in the NCT in one area of a vehicle, the combination of deficiencies could result in the NCT being escalated to ‘fail dangerous’.

Where a vehicle receives this result, it is considered a direct or immediate risk to road safety and should not be driven on the road under any circumstances.

“These changes will enable Ireland to meet its strategic objectives and continue to lead the way in improving road safety through the use of vehicle technology and contribute to significantly safer vehicles on Irish roads,” said Sam Waide, CEO, Road Safety Authority.