Queensland Consolidated RegulationsAn approved intelligent transport system malfunctions if--
(a) it ceases to work at all, or works only intermittently; or
(b) it does not perform a function required under the IAP, or performs the function only intermittently; or
(c) it performs a function required under the IAP in a way that the results of it doing so are inaccurate or unreliable, including intermittently inaccurate or unreliable.