B1A27
B1A27-SKREEM PROGRAMMING PERFORMANCE
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
Sentry Key Remote Entry Module (SKREEM) is one of the many functions that is a subset of the Wireless Ignition Node (WIN). SKREEM programming takes place during the Fob-Integrated-Key (FOBIK) programming procedure. The repair of this fault condition is dependant on the programmed status of the FOBIK attempting to be programmed. Once the WIN requests the FOBIK to send its identification information, the FOBIK will attempt to send the information up to three times for redundancy to ensure "Good" information has been received.
- When Monitored:
During FOBIK programming mode when the FOBIK and the WIN module are communicating over LF (low frequency) communication.
- Set Condition:
The WIN will set this DTC if one or more of the three FOBIK transmissions, during FOBIK programming, failed to be properly received by the WIN. The FOBIK may still get programmed because the transmission was successful on one of the other attempts.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Wireless Ignition Node (WIN) Pre-Diagnostic Procedure.
NOTE: All FOBIKs programmed to this vehicle should be present before continuing.
DELETE FOBIKs AND REPROGRAM
1. With the scan tool, use the "Erase All Ignition Keys" feature under Miscellaneous Functions to delete all stored FOBIKs.
2. With the scan tool, use the "Program Ignition Keys or Key FOBs" feature under Miscellaneous Functions to reprogram all applicable FOBIKs.
3. With the scan tool, erase the WIN DTCs.
4. Turn the ignition off, wait 15 seconds, turn the ignition on.
5. Wait one minute, and read the active DTCs.
Does the scan tool display; B1A27-SKREEM PROGRAMMING PERFORMANCE?
Yes
- Replace the Wireless Ignition Node (WIN). Wireless Ignition Node Receiver - Removal.
- Perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test.
No
- Repair is complete.
- Perform the BODY VERIFICATION TEST. Body Verification Test.