Circuit Description
When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value, which is received by the theft deterrent module (TDM). The TDM then compares this value to a value stored in memory, learned key code. If the value is correct, the TDM sends a random generated number to the transponder. This is called a challenge. Both the transponder and the TDM perform a calculation on the challenge. If the calculations match, the TDM sends the fuel enable password via the serial data circuit to the powertrain control module (PCM). If either the transponders unique value or the calculation to the challenge is incorrect, the TDM will send the fuel disable password to the PCM via the serial data circuit.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B3060 Unprogrammed Transponder ID Code Received
This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, refer to DTC Symptom Description in Vehicle DTC Information.
DTC Symptom | DTC Symptom Descriptor |
|---|---|
00 | No additional information |
Conditions for Running the DTC
| • | The ignition switch is in the ACCESSORY or RUN position. |
| • | DTC B1325 03 or B1325 07 is not current. |
Conditions for Setting the DTC
If the transponder value from the ignition key does not match the one stored in memory, the TDM sets this DTC. This DTC indicates the use of a key with a transponder value that has not been learned by the TDM. The vehicle theft deterrent (VTD) system considers this to be a theft attempt.
Action Taken When the DTC Sets
| • | The vehicle will not start. |
| • | The TDM sends a message via the serial data circuit to the body control module (BCM) to flash the SECURITY indicator. |
Conditions for Clearing the MIL/DTC
| • | The TDM clears the current status of the DTC when it senses a valid, memorized, transponder value from the ignition key. |
| • | The TDM clears the history status of the DTC after 100 fault-free ignition cycles. |
| • | The DTC can be cleared by using a scan tool. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
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This step verifies the condition for setting DTC B3060 is current.
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The only method to determine which re-learn procedure to perform.
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To set this DTC, a key with a working transponder that is not learned was read by the theft deterrent control module. For that key to operate the vehicle and one or more learned keys are available, perform the Adding Keys procedure.
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To set this DTC, a key with a working transponder that is not learned was read by the theft deterrent control module. For that key to operate the vehicle, a 10-Minute Re-Learn Procedure or 30-Minute Re-Learn Procedure must be performed.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Theft Deterrent System Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Is DTC B3060 set as a current code? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | |
3 | Are more than one of the vehicle keys available? | Go to Step 4 | Go to Step 6 |
Attempt to start the vehicle using all of the vehicle's available master keys. Do any of the available master keys start the vehicle? | Go to Step 5 | Go to Step 6 | |
|
Important: Two learned master keys are required to perform the Adding Keys procedure on some export vehicles. If only one learned master key is available, then the Replacing Keys procedure will need to be performed. Refer to Replacing Keys . Perform the Adding Keys procedure. If a learned master key is available, refer to Adding Keys . If the required number of learned master keys are not available, refer to Replacing Keys . Is the procedure complete? | Go to Step 7 | -- | |
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Important: If a 10-Minute or 30-Minute Re-Learn Procedure is performed, all keys not learned at that time will be erased and will not be recognized. Perform the Adding Keys procedure on all keys or instruct the customer how to perform the Adding Keys procedure. Refer to Adding Keys . Perform the Programming Theft Deterrent System Components procedure. Refer to Programming Theft Deterrent System Components . Is the procedure complete? | Go to Step 7 | -- | |
7 |
Does the DTC reset? | Go to Step 2 | System OK |
