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Object Alarm Module Scan Tool Information

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Parking Assist Control Module Scan Tool Data Parameters

Parameter System State Expected Value Description
Operating Conditions:  Ignition ON/Engine OFF/Parking Assist ON
Battery Voltage - 11-14 V The scan tool displays V. This is the current battery voltage.
Calculated Transmission Range Transmission in reverse Reverse The scan tool displays Park, Reverse, Neutral, Drive or Unknown depending on the state of the commanded gear.
Obstacle Detected - No The scan tool displays Yes or No. Yes is displayed if there is an object within the measuring range of the object sensors.
Park Assist Chime - Varies The scan tool displays On or Off. On is displayed if there is an object within the measuring range of the object sensors.
Park Assist Disable History 1 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 2 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 3 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 4 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 5 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 6 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Disable History 7 - Varies The scan tool displays None, Manual Disable, Park Brake Applied, Trailer or Other Attached Object, Excessive Speed in Reverse, No or Invalid Sensor Signals, Sensor Disturbance, Sensors Dirty, Sound Signal Return Time Not Plausible. This is the state of the park assist disable history.
Park Assist Sensor - On The scan tool displays On or Off.
Park Assist Sensor Reference Voltage - 7.3-9.1 V The scan tool displays V. This is the amount of voltage being sent to the object sensors.
Park Assist Switch Parking assist switch released Inactive The scan tool displays Inactive or Active depending on the parking assist switch state.
Parking assist switch pressed Active
Park Assist Switch LED Parking assist ON On The scan tool displays On or Off. This is the state of the parking assist switch indicator.
Parking assist OFF Off
Park Assist System Status - Enable The scan tool displays Disable, Enable, Inhibited or Failed. This is the state of the parking assist system.
Power Mode - Run The scan tool displays Off, Accessory, Run or Crank. This is the state of the ignition switch.
Rear Red LED - Varies The scan tool displays On or Off. On is displayed if the object is 0.3-0.6 m (1-2 ft) away from the object sensors.
Rear Yellow 1 LED - Varies The scan tool displays On or Off. On is displayed if the object is 0.6-1.0 m (2-3.3 ft) away from the object sensors.
Rear Yellow 2 LED - Varies The scan tool displays On or Off. On is displayed if the object is 1.0-2.5 m (3.3-8.2 ft) away from the object sensors.
Parking Assist Control Module Scan Tool Output Controls

Output Control Description
Clear Disable History Data The parking assist control module clears the park assist disable history when commanded from the scan tool.
Park Assist Switch LED The parking assist control module illuminates the parking assist switch indicator when commanded from the scan tool.
Rear Red LED The parking assist control module illuminates the red LED of the parking assist indicator when commanded from the scan tool.
Rear Yellow 1 LED The parking assist control module illuminates the 1st yellow LED of the parking assist indicator when commanded from the scan tool.
Rear Yellow 2 LED The parking assist control module illuminates the 2nd yellow LED of the parking assist indicator when commanded from the scan tool.