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. Diagnostic System Check - Vehicle

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 DTC.

Circuit/System Verification

Important: When performing a 10 Minute or 30 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.

1. Verify DTC B3060 is not set as current.

• If DTC B3060 is set as current, refer to DTC B3060. B3060

2. With a scan tool, verify the PCM Password Learning parameter displays Enabled.

• If the PCM Password Learning parameter does not display Enabled, perform the 10 Minute Relearn Procedure for the powertrain system. Refer to Theft Deterrent Control Module Programming and Setup. Theft Deterrent Control Module Programming and Setup

3. Perform the 10 Minute Relearn Procedure for the TD system. Refer to Theft Deterrent Control Module Programming and Setup. Theft Deterrent Control Module Programming and SetupThe 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

* Adding Keys
* Control Module References for TDM replacement, setup and programming.