DTC P0760: Shift Solenoid "C" Fault: Description
WARNING: This page is about a different car, the 2002 Mazda Millenia and 2001 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set if PCM detects shift solenoid "C" voltage is remaining at battery voltage, or zero volts after engine is started, PCM determines shift solenoid "C" circuit has a malfunction.