Diagnostic Instructions
DTC Descriptor
DTC B3055 00: Transponder Key Problem
DTC B3055 48: Wrong Transponder Key
Circuit/System Description
When an remote key is inserted into the ignition lock cylinder and the ignition is turned ON, the transponder embedded in the remote key is energized by the exciter coils located in the theft deterrent module (TDM) surrounding the ignition lock cylinder.
The energized transponder transmits a signal that contains its unique value, which is received by the TDM. The TDM is directly secured to the steering column module (CIM). The CIM compares this unique value to a value stored in memory. If the value is correct,
the CIM will request vehicle starting.
Conditions for Running the DTC
Ignition ON
Conditions for Setting the DTC
The TDM is unable to measure the remote key transponder value
Action Taken When the DTC Sets
| • | Vehicle starting is disabled |
| • | The Service Vehicle Soon indicator will flash and/or the Safeguard Check message is displayed on the driver information center (DIC) |
Conditions for Clearing the DTC
| • | A current DTC will be cleared when the TDM detects a valid transponder value from the remote key. |
| • | A history DTC will clear after 100 malfunction free ignition cycles. |
Reference Information
Schematic Reference
Immobilizer Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Immobilizer Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
for scan tool information
Circuit/System Verification
- Inspect that all available remote keys are correct remote keys for the vehicle.
| ⇒ | If any remote keys are incorrect for the vehicle, replace the remote key. |
- Attempt to start the vehicle with each of the available remote keys. DTC B3055 should not set.
| ⇒ | If only one remote key causes DTC B3055 to set, replace the appropriate remote key. |
| ⇒ | If all remote keys cause DTC B3055 to set, replace the CIM. |
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
