GM Service Manual Online
For 1990-2009 cars only

The scan tool data list contains all the object detection system related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The column, Data List, indicates the location of the parameter within the scan tool menu selections.

Use the object detection scan tool data list as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with the Diagnostic System Check - Vehicle. Use the scan tool data list after the following is determined:

    • There is no published diagnostic trouble code (DTC) procedure nor published symptom procedure for the customer concern.
    • The DTC or symptom diagnostic procedure indicated by the diagnostic system check does not resolve the customer concern.

The typical data values are obtained from a properly operating vehicle under the conditions specified in the second row of the scan tool data list table. Comparison of the parameter values from the suspect vehicle with the typical data values may reveal the source of the customer concern.

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON/Engine OFF/Object Detection Switch ON

Battery Voltage Signal

Data/Battery Data

Volts

12 Volts

Calibration Part Number

Module ID Information

8-digit number

Varies

Component Serial No. 13-16

Module ID Information

9-digit number

Varies

End Model Part Model

Module ID Information

8-digit number

Varies

Loudspeaker Feed Voltage Output

Data/Battery Data

Volts

Varies

Park Assist Switch

Data/System Data

Active/Inactive

Active

Park Assist Rear Display LED CKT

Data/Battery Data

OK/Over Current

OK

Park Assist System Status

Data/System Data

Enable/Disable/Inhibit/Failed

Enable

Power Mode

Data/System Data

OFF/Accessory/Run/Crank Request

Run

Sensor Feed Voltage Output

Data/Battery Data

Volts

Varies

Vehicle Speed

Data/System Data

mph

0-mph

Year Module Built

Module ID Information

2-digit number

Varies