A crank sensor will not usually set a code. The logic is that if the cranks sensor isn't registering the controller doesn't know the engine is turning, so it obviously can't critique it. A cam sensor code can result though from a bad crank sensor due to the fact that the crank is believed first and if it isn't registering for a moment the cam is seen out of phase.
The OVP just powers the controller so if it isn't on then the controller just stays asleep and has no reason to code anything.
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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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