2012 Chevrolet Traverse LS, AWDFACTORY OEM SERVICE PROCEDURE

Communication Interface Module Scan Tool Information

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Vehicle Communication Interface Module Scan Tool Data Parameters

Parameter Expected Value Description
Operating Conditions:  Ignition ON
GPS Data: 
  • Dead Reckoning Calibration Status
 Calibrated or Not Calibrated Indicates the dead reckoning calibration status.
  • Position Calibration Method
 Varies Indicates the method used to determine current location. (0) GPS, (1) Wheel Speed Dead Reckoning only, (2) Combined Wheel Speed and GPS, (3) Gyro only, (4) Combined Gyro and GPS, (5) No Fix
  • Month
 MM This displays the current month.
  • Day
 DD This displays the current day of the month.
  • Year
 YY This displays the current year.
  • Hour
 HH This displays the GPS current hour (24 hour format - GMT).
  • Minute
 MM This displays the GPS current minute.
  • Second
 SS This displays the GPS current second.
  • GPS Signal
 Varies The scan tool displays Yes or No. Yes is displayed if there is a GPS signal received by the vehicle communication interface module.
Signal Strength Data: 
  • Current Transceiver Identifier
 Varies The scan tool displays a 2-5 digit value. This is the transceiver identification number.
  • GSM Signal Strength
 Varies The scan tool displays 0-127. This is the vehicle communication interface module signal strength.
  • Signal Type
 Digital This is the signal type received by the vehicle communication interface module.
Bluetooth Data: 
  • Bluetooth
 Enabled Indicates if the Bluetooth system is enabled or disabled.
  • Bluetooth Link Status
 Varies Indicates the current link status. (0) Unconnected, (1) connected / Idle, (2)Call active, (3) 3 way calling active
  • Bluetooth Link Quality
 Varies The scan tool displays a decimal value between 0 and 255.
  • Bluetooth Phone to Telematics Communication Interface Control Module Authentication Status
 Active or Inactive Displays the bluetooth phone to vehicle communication interface module authentication status.
  • Bluetooth Phone to Telematics Communication Interface Control Module Communication Status
 Active or Inactive Displays the bluetooth phone to vehicle communication interface module status.
  • Bluetooth Phone Voice Recognition Status
 Active or Inactive Displays the bluetooth phone to voice recognition status.
Vehicle Communication Interface Module Scan Tool Output Controls

Output Control Description
B1000 Information This shows the data recorded when DTC B1000 was set in the vehicle communication interface module.
Green Indicator The vehicle communication interface module illuminates the green LED when ON is selected.
Phone Call Test When ON is selected, vehicle communication interface module commands OnStar to connect to the OnStar Center.
Red Indicator The vehicle communication interface module illuminates the red LED when ON is selected.
Preferred Roaming List Update The vehicle communication interface module performs a preferred roaming list (PRL) update when this is selected.
Remote Vehicle Speed Limiting Reset This function resets the speed limiting feature.
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