B3031

DTC B3031

DTC DESCRIPTOR

DTC B3031
Security System Controller In Learn Mode

DIAGNOSTIC FAULT INFORMATION
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Testing and Inspection

CIRCUIT/SYSTEM DESCRIPTION
When learning a coded key, the theft deterrent module (TDM) is placed in learn mode. DTC B3031 will set automatically as an indicator that the system is in learn mode and not as a fault indicator. Once the coded key is learned, learn mode will be exited and the DTC cleared. If the TDM does not exit learn mode, B3031 will remain current and indicate a fault.

CONDITIONS FOR RUNNING THE DTC
The vehicle theft deterrent system is in learn mode.

CONDITIONS FOR SETTING THE DTC
DTC B3031 will set any time the TDM enters learn mode

ACTION TAKEN WHEN THE DTC SETS
The security indicator will illuminate.

CONDITIONS FOR CLEARING THE DTC
- A current DTC B3031 will be cleared upon the successful exit of learn mode.
- A history DTC will be cleared after 100 malfunction free ignition cycles or when a scan tool is used to clear DTCs.

CIRCUIT/SYSTEM VERIFICATION

IMPORTANT: When performing a 10-Minute Relearn Procedure, all keys not learned at that time will be erased and not be recognized. Perform the Adding Keys procedure on all keys or instruct the customer how to perform the Adding Keys procedure should all keys not be present at the time of repair.

Perform the Programming Theft Deterrent System Components procedure. Refer to Programming Theft Deterrent System Components. The TDM should exit learn mode and DTC B3031 should clear.
- If the TDM does not exit learn mode after the programming attempt, replace the TDM.

REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

- Adding Keys (Domestic)
- Control Module References for Theft Deterrent Module replacement, setup and programming.