GM Service Manual Online
For 1990-2009 cars only

Parameter

Operating Conditions

Expected Value

Definition

Ignition is ON, engine OFF, and vehicle is stationary

Channel Count

 

Varies

 

GPS Antenna Current

 

19 mA

 

GPS Antenna Status

 

Okay / Not Okay

 

Healthy Satellites

 

Varies

The scan tool displays the number of healthy GPS satellites currently available to the GPS system.

System Powermode

Off

Current Ignition Cycle

 

Accessories

Current Ignition Cycle

 

Run

Current Ignition Cycle

 

Received Satellites

 

Varies

The scan tool displays the number of GPS satellites currently supporting the GPS system.

Used Satellites

 

Varies

The scan tool displays the number of GPS satellites used by the GPS system.

Visible Satellites

 

Varies

The scan tool displays the number of visible GPS satellites currently available to the GPS system.