[Cobrakiller]

Hi Guys, I am using an ABS brake master cylinder and booster from a 2012 Commodore, without the ABS unit. And realized that the fluid level switch in the master cyl. reservoir is not going to comply with ADR 31. I need to fit a proportioning valve that has the brake failure switch built in like the one pictured. To comply the brake failure self test dash light needs to come on momentarily when the ignition is switched to on then go out when the engine is started and the key returned to on position. I am not sure how this deactivation with the light works, is it in the ignition switch wiring or does the switch pictured do the self test and deactivate the light somehow?