Calibration
Calibration must be carried out if the battery has been disconnected or discharged, or if the ACC panel has been replaced. To start calibration, press the "AUTO" and "OFF" buttons simultaneously. This also starts a self-test. Calibration and the self-test are carried out in parallel and take less than 30 seconds. All stored faults are cleared at the start and while calibration and self-testing are in progress the number of faults found will be shown on the ACC panel's display. Calibration must also be carried out if any of the stepping motors have been replaced. Calibration can also be carried out by means of an ISAT.