[Roadsters] Instrument regulator test

[Graeme]

 "My voltage regulator pulses when I did this test, but it's pulsing up to
22VDC. Dunno how it's doing that with a 14.4VDC source. Perhaps the digital
multimeter cannot compensate quick enough for the pulses - perhaps not.

Does this mean the gauge VR is failing?

Pete"

You either need to use an ANALOGUE meter or a simple 12V D.C. test lamp to
observe the operation.
The pulsing is the good news though.