For 1990-2009 cars
Module Information -- PROM ID: This displays the four digit number of the PROM incorporated into the Driver Door Module (DDM).
Module Information -- Master Flash ROM ID: This displays the calibration or program revision level used in the Master ROM.
Slave Flash ROM ID: This displays the calibration or program revision level used in the Slave ROM.
Module Information -- Julian Date Of Build: This displays the day of the year the module was built.
Module Information -- Year Module Built: This displays the four digit year of build.
Module Information -- 8 Digit GM Part Number: This displays the part number for the VIU.
Module Information -- Component Serial #8-11: This is the first partition of the serial number.
Module Information -- Component Serial #12: This is the second partition of the serial number.
Module Information -- Component Serial #13-16: This is the third partition of the serial number.
Module Information -- Component Serial # 17-18: This is the last partition of the serial number.
GPS Information -- Second: Gives second of current time as transmitted by GPS satellites.
GPS Information -- Hour: Gives hour of current time as transmitted by GPS satellites.
GPS Information -- Day: Gives current day as transmitted by GPS satellites.
GPS Information -- Month: Gives current month as transmitted by GPS satellites.
GPS Information -- Year: Gives current year as transmitted by GPS satellites.
GPS Information -- Minute: Gives current minute as transmitted by GPS satellites.
GPS Information -- Latitude: Gives current position (N/S) as calculated from GPS satellite information.
GPS Information -- Longitude: Gives current position (E/W) as calculated from GPS satellite information.
Inputs -- Green LED on Keypad: Displays current state of Green LED (Active/Inactive).
Inputs -- Red LED on Keypad: Displays current state of Red LED (Active/Inactive).
Inputs -- Keypad Input: Displays current state of OnStar keypad (Inactive/Phone key/Onstar Key/Emergency Key).
Inputs -- Vehicle Interface Unit Status: Displays operating status of VIU (Normal/Abnormal).
Inputs -- Light Pass/Light Output This Ignition Cycle: Displays status of lights commanded by VIU for this ignition cycle. (Changed by VIU or No Change by VIU)
Inputs -- Lock Output This Ignition Cycle: Displays status of lock command by VIU for this ignition cycle. (Changed by VIU or No Change by VIU)
Inputs -- Unlock Output This Ignition Cycle: Displays status of unlock command by VIU for this ignition cycle. (Changed by VIU or No Change by VIU)
Inputs -- Horn Output This Ignition Cycle: Displays status of horn command by VIU for this ignition cycle. (Changed by VIU or No Change by VIU)
Inputs -- Audio Mute Output This Ignition Cycle: Displays status of audio mute commanded by VIU for this ignition cycle. (Changed by VIU on No Change)
Inputs -- Key Output This Ignition Cycle:
Inputs -- Audio Mute Output Current: Displays current status of OnStar audio mute command. (Class 2 message)
Inputs -- Door Input Current:
Inputs -- Theft Input Current: Displays current status of OnStar theft input. (Class 2 message)
Inputs -- Accessory Input Current: Displays current status of OnStar accessories input. (Class 2 message)