For 1990-2009 cars

### Circuit Description

The theft deterrent control module checks memory to see if the Learn Coded Key setting is on. If so, the theft deterrent control module sets this DTC.

### Conditions for Running the DTC

The ignition switch must be ON. The theft deterrent control module cannot have DTC B1327 set as a current DTC.

### Conditions for Setting the DTC

If the Learn Coded Key setting is on, the theft deterrent control module sets this DTC.

### Action Taken When the DTC Sets

The theft deterrent control module will learn the key code. The security indicator will be illuminated for this DTC.

### Conditions for Clearing the MIL/DTC

The theft deterrent control module clears the current status of the DTC when it does not see the Learn Coded Key setting as on. The DTC will still be retrieved as current until the ignition switch is cycled. The DTC will become a history DTC at that time.

### Test Description

The number below refers to the step number on the diagnostic table.

1. To set this code, a key with a working transponder was read by the theft deterrent control module. For that key to operate the vehicle a 10 Minute 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 Theft Deterrent Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Theft Deterrent
2 | 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 3

--

3 |

1. Use the scan tool in order to clear the DTCs.
2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK