Pinpoint Test E: The Remote Keyless Entry (RKE) Transmitter Is Out Of Synchronization
Handles, Locks, Latches and Entry Systems
Pinpoint Tests
Pinpoint Test E: The Remote Keyless Entry (RKE) Transmitter Is Out Of Synchronization
Normal Operation
The Remote Keyless Entry (RKE) transmitters and the Smart Junction Box (SJB) use a rolling code to prevent the codes from being "captured" by a code grabber. The system advances the counter in the RKE transmitter and in the SJB every time an RKE transmitter button is pressed.
- DTC B2425 (Remote Keyless Entry Out of Synchronization) - a continuous DTC that sets when the SJB senses that the key fobs are out of synchronization.
This pinpoint test is intended to diagnose the following:
- RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle
- RKE transmitter
- SJB
PINPOINT TEST E: THE RKE TRANSMITTER IS OUT OF SYNCHRONIZATION
-------------------------------------------------
E1 RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER
- Ignition OFF.
- Press any button on the inoperative RKE transmitter 4 times consecutively within 30 seconds.
- Does the RKE transmitter operate correctly now?
Yes
The system is OK. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
No
GO to E2.
-------------------------------------------------
E2 CHECK FOR A SECOND RKE TRANSMITTER
- Check for another RKE transmitter that operates with the vehicle.
- Is there another RKE transmitter that operates with the vehicle?
Yes
GO to E3.
No
GO to E4.
-------------------------------------------------
E3 RESYNCHRONIZE THE INOPERATIVE RKE TRANSMITTER USING THE SECOND RKE TRANSMITTER
- Ignition OFF.
- Press any button on the operational RKE transmitter.
- Within 30 seconds, press a button on the inoperative RKE transmitter.
- Check the inoperative RKE transmitter for correct operation.
- Does the inoperative RKE transmitter operate now?
Yes
The system is OK. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
No
GO to E4.
-------------------------------------------------
E4 PROGRAM THE INOPERATIVE RKE TRANSMITTER OR ALL THE RKE TRANSMITTERS
- Program the inoperative RKE transmitter individually using a scan tool or program all RKE transmitters using the manual key cycle method. Refer to Remote Keyless Entry (RKE) Transmitter Programming Testing and Inspection.
- Does the inoperative RKE transmitter operate now?
Yes
The system is OK. INFORM the customer that any RKE transmitters not present need to be programmed. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
No
GO to Pinpoint Test D. Pinpoint Test D: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Transmitter
-------------------------------------------------