PRE-RELEASE
DTC B3031
| DTC B3031 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptor |
DTC B3031 00
Security Controller In Learn Mode Malfunction
| Circuit/System Description |
When learning a transmitter, the body control module (BCM) 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 transmitter is learned, learn mode will be exited and the DTC cleared. If the BCM does not exit learn mode, B3031 will remain current and indicate a fault. The instrument cluster security indicator will illuminate and the driver information center will display a message.
| Conditions for Running the DTC |
The immobilizer system is the learn state.
| Conditions for Setting the DTC |
DTC B3031 will set any time the BCM enters the learn state.
| Action Taken When the DTC Sets |
The security indicator will illuminate. The driver information center will display a message.
| Conditions for Clearing the DTC |
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A current DTC B3031 will be cleared upon the successful exit of learn mode.
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A history DTC will be cleared after 100 malfunction-free ignition cycles or when a scan tool is used to clear DTCs.
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| Reference Information |
Schematic Reference
Immobilizer Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Immobilizer Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
Perform the Transmitter Replacement procedure. Refer to Remote control door lock and theft deterrent transmitter programming. The BCM should learn the transmitter and exit the learn state.
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for BCM replacement, setup and programming
