The Battery Voltage variable represents the Overal Ignition System Voltage. It is determined by the VBAT HRT which translates the Battery Voltage Raw (0-65535) signal into a voltage (0-30V).


This reading in MEITE should match the measured voltage at the ECU Ignition +12V Ignition Live pin. It is used for functions such as Injector Dead Time Compensation and Alternator Control.


You should not need to change this calibration as it is factory set.