Hi folks,
There is no need to have a handbrake warning lamp as such for the sva test, what you do need though is a test facility that the driver can operate from the driving position, to test the low fluid level circuit for the reservoir. This is where the handbrake warning lamp is utilised by wiring it in with the low level circuit. Otherwise use a readily available clearly marked switch on the dash for this function.
HTH
Mark
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