B3031

Diagnostic Chart:

CIRCUIT DESCRIPTION
Theft Deterrent (VTD) Module performs an internal test to determine if the module is in the learn coded key mode every 300 milliseconds. If the test determines that the module is in the learn coded key mode the VTD module will indicate a learn coded key mode is current.

CONDITIONS FOR SETTING THE DTC
At the beginning of the ignition cycle the VTD module detects a learn coded key mode.

ACTION TAKEN WHEN THE DTC SETS
^ Stores a DTC B3031 in the VTD module memory
^ security indicator is illuminated.

CONDITIONS FOR CLEARING THE DTC
^ The VTD module no longer detects a learn coded key mode.
^ Use the On-Boards clearing DTCs feature. Refer to OBSD Procedure.
^ Use a scan tool.

DIAGNOSTIC AIDS
When a new module is installed into a vehicle the VTD module is in the learn coded key module. Perform the Learn key Procedure.

TEST DESCRIPTION
The numbers refer to the step numbers on the diagnostic table:
1. Perform the Theft Deterrent System Diagnostic System Check before continuing with the diagnosis of this DTC.
2. Clear all DTCs and cycle ignition to check that the DTC did not falsely set.
4. Clear all DTCs after the repair procedure is complete.