5.7.2. Except for additional light source(s) and additional lighting unit(s) used to produce bend lighting, in the case of failure it must be possible to obtain automatically a passing-beam or a state with respect to the photometric conditions which yields values not exceeding 1,200 cd in Zone 1 and at least 2,400 cd at 0,86D-V by such means as e.g. switching off, dimming, aiming downwards, and/or functional substitution; a0c0