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 Enabled

Battery Voltage Signal

Battery Data

Volts

0 - 19 V (Varies w/battery voltage)

Front Region 1/2/3/4

Alarm Data

No Detect/Zone 1/Zone 2/Zone 3/Zone 4/Zone 5/Zone 6/Zone 7/Zone 8

No Detect

Loudspeaker Feed Voltage Output

Battery Data

Volts/Counts

Varies

Park Assist Disable History (1 - 8)

History Data

Empty/Manual Disable/Park Brake/Hitch Object Attached/Reverse Overspeed/Inhibit/Sensor Disturbance/Snow,Ice,Mud/Sensor Ring Time

Empty

Park Assist Front Display LED CKT

Battery Data

Ok/Over Current

Ok

Park Assist Front Y1 LED

System Data

Off/On

Off

Park Assist Front Y2 LED

System Data

Off/On

Off

Park Assist Front Red LED

System Data

Off/On

Off

Park Assist Switch

System Data

Active/Inactive

Active

Park Assist Switch LED

System Data

Off/On

Off

Park Assist Switch LED CKT

Battery Data

Ok/Over Current

Ok

Park Assist Rear Display LED CKT

Battery Data

Ok/Over Current

Ok

Park Assist Rear Y1 LED

System Data

Off/On

Off

Park Assist Rear Y2 LED

System Data

Off/On

Off

Park Assist Rear Red LED

System Data

Off/On

Off

Park Assist System Status

System Data

Enable/Disable/Inhibit/Failed/Blocked

Enable

Power Mode

System Data

Off/Accessory/Run/Crank Request

Run

Rear Region 1/2/3/4

Alarm Data

No Detect/Zone 1/Zone 2/Zone 3/Zone 4/Zone 5/Zone 6/Zone 7/Zone 8

No Detect

Sensor Feed Voltage Output

Battery Data

Volts/Counts

Varies

Vehicle Speed

System Data

mph (km/h)

0 mph (0 km/h)