B1A25
B1A25-INVALID KEY
For a complete wiring diagram, refer to the Wiring Information. Electrical Diagrams
Theory of Operation
Whenever a Fob-in-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) basestation, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK, performing various validity and performance tests. The repair of this fault condition relies on whether the ID of the FOBIK is recognized as valid in the WIN.
- When Monitored:
During resynchronization, the FOBIK sends an RF signal to the WIN that includes the programmed FOBIK ID.
- Set Condition:
This DTC sets if the WIN receives an ID from the FOBIK that does not match any of the eight possible FOBIK IDs programmed in the WIN. This DTC will remain active until a valid, programmed FOBIK is inserted in the basestation and rotated through the ON position.
Always perform the WIN Pre-Diagnostic Troubleshooting procedure before proceeding. Wireless Ignition Node (WIN) Pre-Diagnostic Procedure.
1. DETERMINE ACTIVE OR STORED DIAGNOSTIC TROUBLE CODE (DTC)
NOTE: An external Radio-Frequency Identification (RFID) key (and/or pass/radio key), such as one used to gain access to a 24 hour gym, can cause this DTC to set and create a no start condition. Inspect the customer's key chain for any type of RFID key. If one is not found, question the customer to see if a spare key chain has this RFID key on it or if it was removed from the original key chain before the vehicle was released for service. If a RFID key is present, remove the ignition key from the vehicle and remove the RFID key from the key chain. For GPEC equipped vehicles, disconnect the battery and wait a minimum of 5 minutes, reconnect and attempt to start the vehicle. For NGC equipped vehicles, turn the ignition on a minimum for one hour, and then attempt to start the vehicle. If the vehicle does not start, continue with the diagnostic test.
Is the DTC active or stored?
WIN - ACTIVE DTC
- Go To 2
WIN - STORED DTC
- Perform the WIN INTERMITTENT TEST. Wireless Ignition Node (WIN) Intermittent Condition Test.
2. VERIFY THE WIN HAS BEEN PROPERLY INITIALIZED
NOTE: When diagnosing any WIN concern, all FOBIKs must be present
1. With the scan tool, read the Number of Key/Fobs Programmed under Data Display.
Does the scan tool show two or more Key/Fobs Programmed?
Yes
- Go To 3
No
- Program two FOBIKs, then perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test.
3. CHECK OPERATION OF THE FOBIK IN USE
NOTE: Verify the FOBIK in use is the FOBIK causing the DTC to set.
1. Replace the FOBIK currently in use.
2. Using the scan tool, program a new FOBIK to the WIN.
3. Use the scan tool and erase all codes in the WIN.
4. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
5. Wait one minute, and read active codes.
Does the scan tool display this DTC as active?
Yes
- NOTE: Technicians must use the scan tool to perform the WIN Programming procedure after a module replacement.
- Replace the Wireless Ignition Node.
- Perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test.
No
- Repair is complete.
- Perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test.