23-02-13, 05:21 AM
If your battery voltage is good (12.8V) (how old is your battery?), I wouldn't worry too much about it (unless it's causing a problem?). You say 10v "at certain points" and "within the clocks" - I'm guessing you're testing for voltages on the printed circuit board? PCB's tend to contain semi-conductors (inc internal voltage regulators), and can give readings that seem out of kilter with battery voltages (engine management units for example can use 5v and even 3.3v internally).
External factors like temperature and humidity can have an effect (some circuits are more sensitive than others in this regard) (bear in mind your battery will taking a hammering with the current cold weather, so may be lower than normal to start with), if there's any AC circuitry / signals in there (haven't seen the clocks up close, so not totally familiar with them off-hand) that can cause spurious readings (bearing in mind the battery voltage is DC so most people will naturally test for that), and even the very use of test gear can alter the behaviour of some systems.
That's a few ideas for low voltages (though diagnosing at a distance is always tricky).
External factors like temperature and humidity can have an effect (some circuits are more sensitive than others in this regard) (bear in mind your battery will taking a hammering with the current cold weather, so may be lower than normal to start with), if there's any AC circuitry / signals in there (haven't seen the clocks up close, so not totally familiar with them off-hand) that can cause spurious readings (bearing in mind the battery voltage is DC so most people will naturally test for that), and even the very use of test gear can alter the behaviour of some systems.
That's a few ideas for low voltages (though diagnosing at a distance is always tricky).