B1A25

B1A25-INVALID KEY



Theory of Operation

Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) base station, 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 interrogation, the FOBIK sends an LF 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 base station and rotated through the ON position.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Wireless Ignition Node (WIN) Pre-Diagnostic Procedure.

1. DETERMINE ACTIVE OR STORED DIAGNOSTIC TROUBLE CODE (DTC)

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 system concern, all FOBIKS must be present

1. Using the scan tool, read the Number of Key/Fobs Programmed under Data Display.

Does the scan tool show 2 or more Key/Fobs Programmed?

Yes

- Go To 3

No

- Program 2 FOBIKS
- 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. Using the scan tool, program the FOBIK to the WIN.
2. Use the scan tool and erase all codes in the WIN.
3. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
4. Wait one minute, and read active codes.

Does the scan tool display this DTC as active?

Yes

- Replace and program the FOBIK.
- 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.