PIC sinking voltages higher that Vdd???

[keithdoxey]

So, if one is in doubt, take the multimeter and check for a diode on pin RA4 to Vdd!

Ioannis

Or put a 10k resistor between RA4 and +12v and measure the voltage.

If its 12v then no diode, if its 5.3-5.6 then there is a diode.