Rear Object Alarm Module Scan Tool Information
WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
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.
Park Assist Scan Tool Parameters
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Object Detection Enabled | |||
| Battery Voltage Signal | - | 0-19 V (Varies w/battery voltage) | The scan tool displays 0-19 volts. This is the system battery voltage as detected by the object alarm module. |
| Front Region 1/2/3 | - | No Detect | The front object detection system field of view is divided into 3 regions as displayed in the scan tool. The scan tool displays No Detect/Zone 1/Zone 2/Zone 3/Zone 4/Zone 5/Zone 6/Zone 7/Zone 8 for each of the 3 regions. The object alarm module translates the object of interest distance data into specific range zones. |
| Loudspeaker Feed Voltage Output | - | Varies | The scan tool displays voltage/counts. This is the radio loudspeaker feed voltage/counts output as monitored by the object alarm module. |
| Park Assist Disable History (1 - 7) | - | Empty | The scan tool displays Empty/Manual Disable/Park Brake/Hitch Object Attached/Reverse Overspeed/Inhibit/Sensor Disturbance/Snow, Ice, Mud/Sensor Ring Time. The object alarm module maintains 7 history data for the park assist system at all times. This data represents the last 7 reasons why the park assist system was disabled. |
| Park Assist Front Y1 LED | - | Off | The scan tool displays Off/On. This is the state of the park assist front Y1 LED as detected by the object alarm module. |
| Park Assist Front Y2 LED | - | Off | The scan tool displays Off/On. This is the state of the park assist front Y2 LED as detected by the object alarm module. |
| Park Assist Front Red LED | - | Off | The scan tool displays Off/On. This is the state of the park assist front red LED as detected by the object alarm module. |
| Park Assist Rear Y1 LED | - | Off | The scan tool displays Off/On. This is the state of the park assist rear Y1 LED as detected by the object alarm module. |
| Park Assist Rear Y2 LED | - | Off | The scan tool displays Off/On. This is the state of the park assist rear Y2 LED as detected by the object alarm module. |
| Park Assist Rear Red LED | - | Off | The scan tool displays Off/On. This is the state of the park assist rear red LED as detected by the object alarm module. |
| Park Assist System Status | - | Enable | The scan tool displays Enable/Disable/Inhibit/Failed/Blocked. This is the status of the park assist system as monitored by the object alarm module. |
| Power Mode | - | Run | The scan tool displays Off/Accessory/Run/Crank Request. This is the status of the vehicle power mode as detected by the object alarm module. |
| Rear Region 1/2/3 | - | No Detect | The rear object detection system field of view is divided into 4 regions as displayed in the scan tool. The scan tool displays No Detect/Zone 1/Zone 2/Zone 3/Zone 4/Zone 5/Zone 6/Zone 7/Zone 8 for each of the 3 regions. The object alarm module translates the object of interest distance data into specific range zones. |
| Sensor Feed Voltage Output | - | Varies | The scan tool displays voltage/counts. This is the object sensor feed voltage/counts output as monitored by the object alarm module. |
| Vehicle Speed | - | 0 mph (0 km/h) | The scan tool displays mph (km/h). This is the vehicle speed as detected by the object alarm module. The object alarm module receives vehicle speed information from the ECM. |
Park Assist Scan Tool Output Controls
| Output Control | Description |
|---|---|
| LED Test | The object alarm module illuminates the park assist switch indicator when commanded from the scan tool. |
| Front Red LED | The object alarm module illuminates the front yellow LED when commanded ON from the scan tool. |
| Front Yellow LED 1 | The object alarm module illuminates the front yellow LED when commanded ON from the scan tool. |
| Front Yellow LED 2 | The object alarm module illuminates the front yellow LED when commanded ON from the scan tool. |
| Rear Red LED | The object alarm module illuminates the rear red LED when commanded ON from the scan tool. |
| Rear Yellow LED 1 | The object alarm module illuminates the rear yellow LED when commanded ON from the scan tool. |
| Rear Yellow LED 2 | The object alarm module illuminates the rear yellow LED when commanded ON from the scan tool. |