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Is this one of / the answer to the throttle actuator problem
No, MOSFETs block current only on one direction. There is an unintentional diode across them (internally) that causes the 'short'.
The intermittence is a result of the internals of the TA not passing some kind of self test. If it fails it throws an error status in the CAN response and turns into a vegetable until the next power cycle.
Last edited by rt7085; 22nd June 2016 at 04:19 AM.