Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC B3031: Security System Controller In Learn ModeCircuit/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. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Immobilizer Description and Operation
Electrical Information Reference
Scan Tool Reference
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.
- Verify DTC B3060 is not set as current.
- With a scan tool, verify the PCM Password Learning parameter displays Enabled.
- Perform the 10 Minute Relearn Procedure for the TD system. Refer to Programming Theft Deterrent System Components . The TDM should exit learn mode and DTC B3031 should clear.
| ⇒ | If DTC B3060 is set as current, refer to DTC B3060 . |
| ⇒ | If the PCM Password Learning parameter does not display Enabled, perform the 10 Minute Relearn Procedure for the powertrain system. Refer to Programming Theft Deterrent System Components . |
| ⇒ | 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.
| • | Control Module References for TDM replacement, setup and programming |
