OnStar Vehicle Interface Unit (VIU) (W/UE1)

MODULE INFORMATION - PROM ID: This displays the tour 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.

MODULE INFORMATION - 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(R) keypad (Inactive/Phone key/OnStar(R) 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(R) audio mute command. (Class 2 message)

INPUTS - DOOR INPUT CURRENT:

INPUTS - THEFT INPUT CURRENT: Displays current status of OnStar(R) theft input. (Class 2 message)

INPUTS - ACCESSORY INPUT CURRENT: Displays current status of Onstar(R) accessories input. (Class 2 message)

For a description of the RPO Code(s) shown in this image/article refer to the RPO Code List found at Vehicle/Application ID RPO Codes