8-Digit GM Part Number: Displays the part number for the control module.

Battery Voltage: Displays 0 to 25.5 volts. The battery voltage level at the module.

Calibration ID: Displays the calibration ID for the control module.

Component Serial #8-11: Digits 8 to 11 of the component serial number of the control module.

Component Serial #12: Digit 12 of the component serial number of the control module.

Component Serial #13-16: Digits 13 to 16 of the component serial number of the control module.

Component Serial #17-18: Digits 17 to 18 of the component serial number of the control module.

Control Power: Displays Off or On. The commanded state of the control power terminal.

Daytime Running Lamp: Displays Off or On. The commanded state of the DRL relay.

Flash to Pass Switch: Displays Off or On. The status of the flash to pass switch.

Fluorescent Light: Displays 0 to 100%. The fluorescent light level of the instrument cluster.

Front Fog Lamp Relay: Displays Off or On. The commanded state of the front fog lamp relay.

Front Fog Lamp Switch: Displays Off or On. The status of the front fog lamp switch.

Hazard Lamp Switch: Displays Off or On. The status of the hazard lamp switch.

Head Lamp Switch: Displays Off or On. The status of the headlamp switch.

High Beam Output: Displays Off or On. The commanded state of the flash to pass control terminal.

High Beam Output (Flash to Pass): Displays Off or On. The commanded state of the flash to pass control terminal.

Hood Jamb Switch: Displays Off or On. The status of the hood jamb switch.

Incandescent Dim #1: Displays the percentage of dimming sent to the incandescent lamps.

Interior Dim Pot: Displays 0-5 volts. The interior dimmer switch input signal.

Interior Lamp Input: Displays Off or On. The status of the inadvertent power input.

Interior Lamp Switch: Displays Auto or On. The status of the interior lamp switch.

Interior Lighting Relay: Displays Off or On. The commanded state of the interior lamp relay.

Julian Date of Build: Displays year and day. The first digit indicates the last digit of the year that the control module was built. The remaining 3 digits indicate the day of the year that the control module was built.

Left Turn Signal: Displays Off or On. The status of the discrete left turn signal. The instrument cluster uses this input to determine when to flash the left turn indicator.

Low/High Beam Output: Displays Off or On. The commanded state of the headlamp control terminal.

Overhead Lamps Output: Displays Off or On. The status of the CTSY LP 1 terminal.

Park Lamp: Displays Off or On. The status of the park lamp switch.

Park Lamp Relay Output: Displays Off or On. The commanded state of the park lamp relay.

Position Lamp Disable: Displays Off or On. The commanded state of the standing lamp relay.

PROM ID: Displays the PROM ID for the control module.

Reverse Lamp Relay: Displays Off or On. The commanded state of the reverse lamp relay.

Right Turn Signal: Displays Off or On. The status of the discrete right turn signal. The instrument cluster uses this input to determine when to flash the right turn indicator.

Trailer Detection Input: Displays Off or On. The status of the trailer detect terminal.

Twilight Delay Pot: Displays 0-5 volts. The twilight delay switch input signal.

Twilight Photocell: Displays 0-5 volts. The ambient light sensor input signal.

VF Dim: Displays Off or On. The vacuum fluorescent (VF) display dimming level of the instrument cluster.

Wiper Switch: Displays Off or On. The status of the wiper switch.

Year Module Built: Displays the year that the control module was built.