4.2.2.a

Switch does not operate in accordance with the requirements or the rear position lamps can be switched off when the headlamps are on

DVSA manual phrasing — written for testers, kept verbatim.

May affect the vehicle's safety, put other road users at risk, or have an impact on the environment. The vehicle has failed the MOT.

Switching

Section 4

Lamps, reflectors and electrical equipment

4.2

Front and rear position lamps, daytime running lamps and end-outline marker lamps

4.2.2

Switching

4.2.2.a

this defect

Rectify before re-test.

Always confirm with a qualified MOT tester or vehicle technician for your specific vehicle. A re-test must address the defect category identified above.