8 Digit GM Part Number: Display indicates the part number of the Module.

Battery Voltage: Display indicates the battery voltage input, 0 - 30 volts is the operating range.

Calibration ID: Display indicates the 4 digit calibration ID of the module.

Ignition 0: Display indicates On when the Ignition a 0 input circuit of the module receives a battery voltage signal from the ignition switch.

Ignition 1: Display indicates On when the Ignition a 0 input circuit of the module receives a battery voltage signal from the ignition switch.

Ignition Voltage: Display indicates the ignition voltage input, 0 - 30 volts is the operating range.

Julian Date of Build: Display indicates the 3 digit month and year the module was built.

PROM ID: Display indicates the 4 digit PROM ID of the module.