B3031

DTC B3031 Key Decoder Device In Assem Learn Mode:

CIRCUIT DESCRIPTION
The 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 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.
^ No driver warning message will be displayed for this DTC.

CONDITIONS FOR CLEARING DTC
^ The VTD module no longer detects a learn coded key mode.
^ A history DTC will clear after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ Use the On-Boards clearing DTCs feature.
^ 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 below 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.