The 14CUX is capable of storing diagnostic trouble codes in a 32-byte segment of its internal memory that is maintained (even while vehicle ignition is off) by applying 5VDC (regulated down from 12VDC from the vehicle's battery.) Because of this maintainer voltage, the ECU is always drawing a small amount of current.
voltage | High-voltage direct current | Voltage Fighter Gowcaizer | Cystic fibrosis transmembrane conductance regulator | High Voltage | Voltage source | Voltage regulator | Voltage-gated ion channel | Voltage-dependent calcium channel | The High Voltage SID Collection | Rail Regulator | Radio station motor–generator set, converting from low to the high voltage power supply. This device is called an ''umformer'' in German. Dübendorf | Low-voltage differential signaling | Jikkyō Power Pro Wrestling '96: Max Voltage | High Voltage Radio | High Voltage Festival | high-voltage direct current | High Voltage (1975 album) | High Voltage (1929 film) | Financial Regulator | Ferric uptake regulator family | Dynamic voltage scaling | CPU core voltage |