The scan tool displays the body control module (BCM) data. This information assists in determining whether the BCM is operating properly. This information also assists in determining whether the BCM is sending or receiving the proper data to and from a particular system. The BCM uses the data received from other systems in order to carry out some functions. Therefore, if the BCM receives the incorrect data from another system, the BCM may function improperly. Use the scan tool in order to review the data from the systems that interact with the BCM.

The scan tool displays the BCM input status. Select the BCM input status display in order to display the data. Displaying the data determines if the switched inputs can be properly interpreted. The display also indicates if the input has changed states. For example, when a door is closed, the scan tool displays the input status of the mini wedge (door jamb) switch as INACTIVE. When the door is open, the scan tool reads ACTIVE. Use this kind of information when diagnosing a malfunction associated with a particular BCM input or an input that is shared with another system.

The scan tool displays the BCM output status. Select the BCM output status display in order to display the data. The data determines if the switched outputs can be properly interpreted. The display also indicates if the outputs have changed states. For example, when the daytime running lamps (DRL) are turned on, the scan tool displays the output status of the DRL relay as ON. When the DRL relay is off, the scan tool reads OFF. Use this kind of information when diagnosing a malfunction associated with a particular BCM output.

The scan tool monitors the security data status. Select the security data status display in order to display the data. The data determines if the switched inputs can be properly interpreted. The data indicates when, and if, the input has changed states.

There are 2 features under special function.

Output Controls

Use a scan tool in order to cycle the BCM output functions. When the BCM output cycling is selected, the scan tool can command the BCM to cycle an output. Use this feature in order to determine if the BCM is able to cycle an output regardless of the inputs or any specific program instructions. Once you select a test, the scan tool will command the BCM to energize the selected output. The scan tool then displays the status of the selected output. The displayed information represents only what the BCM commanded, not what action was actually taken. Verify that the BCM is actually performing each of the selected output functions.

Program Key Fobs

This feature gives full instructions in order to reprogram the key fobs to the remote control door lock receiver.