PRE-RELEASE
DTC B3976
| DTC B3976 |
| 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 B3976 00
Unconfigured Transponder
| Circuit/System Description |
When the body control module (BCM) is in the learn coded key state, the BCM checks the current key to ensure it has been configured as a proper vehicle key.
| Conditions for Running the DTC |
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Ignition is in the Accessory or Run position.
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The BCM is in the learn coded key state.
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| Conditions for Setting the DTC |
The BCM has determined the current key is not configured as a proper vehicle key.
| Action Taken When the DTC Sets |
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Vehicle starting will be disabled.
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The security indicator in the instrument cluster will be illuminated. A service message will be displayed in the driver information center.
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| Conditions for Clearing the DTC |
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A current DTC will be cleared when the BCM detects a properly configured vehicle key.
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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 |
While viewing DTCs with a scan tool, attempt to start the vehicle using all of the available keys. The vehicle should start with all available keys.
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Replacing Keys
