B1A25-INVALID KEY

For a complete wiring diagram Refer to Section 8W.



Possible Causes
KEY THAT HAS BEEN PREVIOUSLY PROGRAMMED FOR ANOTHER VEHICLE
MULTIPLE KEY OPERATION
IGNITION KEY
SKREEM
INTERMITTENT WIRING HARNESS PROBLEM




Diagnostic Test

1. DETERMINING IF DTC IS CURRENT

NOTE: Verify the key being used is the proper key for this vehicle and a blank key. If the key being programmed is not blank (one that has been programmed for another vehicle) this fault will set.


With the scan tool, read and record the SKREEM DTCs.
With the scan tool, erase the SKREEM DTCs

NOTE: Perform the following test several times to ensure the DTC is current.


Turn the ignition off.
Wait 10 seconds.
Turn the ignition on.
With the scan tool, read the SKREEM DTCs.

Does the scan tool display the DTC that was previously erased?

Yes


No

2. CHECKING FOR MULTIPLE KEYS


Are there multiple vehicle ignition keys available?

Yes


No

3. MULTIPLE KEY OPERATION

NOTE: Perform the following steps using one of the vehicle ignition keys. When finished, repeat the procedure using each of the other vehicle keys, one at a time.


With the scan tool, erase the SKREEM DTCs.
Turn the ignition off.
Wait 10 seconds.
Turn the ignition on
With the scan tool, read the SKREEM DTCs.

Is the DTC present for all ignition keys?

Yes


No

4. REPROGRAM KEY

With the scan tool, attempt to reprogram the ignition key to the SKREEM.
With the scan tool, erase the SKREEM DTCs.
Wait 10 seconds.
Turn the ignition on.
With the scan tool, read the SKREEM DTCs.

Does the DTC set again?

Yes


No

5. PROGRAM NEW IGNITION KEY

Replace the ignition key with a new key.
With the scan tool, program the new ignition key to the SKREEM.
With the scan tool, erase the SKREEM DTCs.
Turn the ignition off.
Wait 10 seconds.
Turn the ignition on.
With the scan tool, read the SKREEM DTCs.

Does the DTC set again?

Yes


No

6. INTERMITTENT WIRING HARNESS PROBLEM

Turn the ignition off.

NOTE: Check the following items:



Were any problems found?

Yes


No