Pinpoint Test R: B109E:51
Handles, Locks, Latches and Entry Systems
Pinpoint Test R: B109E:51
Normal Operation
When an Integrated Keyhead Transmitter (IKT) key is programmed, the Remote Keyless Entry (RKE) Transmitter Identification Code (TIC) data from the key is received by the Instrument Panel Cluster (IPC). The IPC then sends the TIC data to the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN). The SJB stores the TIC data in memory and sends an acknowledgement back to the IPC that the TIC data was successfully programmed.
- DTC B109E:51 (Remote Keyless Entry: Not Programmed) - a continuous DTC that sets when the IPC sends the RKE TIC data to the SJB over the MS-CAN, and it does not receive a response from the SJB that the TIC data has been stored.
This pinpoint test is intended to diagnose the following:
- IKT programming
- MS-CAN
- SJB
PINPOINT TEST R: DTC B109E:51
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R1 CHECK FOR THE CORRECT RKE TRANSMITTERS
- NOTE: Make sure the IKTs are those provided with the OEM system and not from an aftermarket system, or a dealer-installed system that may have been installed on the vehicle.
- Check that the correct IKTs are used with the vehicle.
- Are all the correct IKTs present?
Yes
GO to R2.
No
The system cannot be tested without the correct IKTs. INFORM the customer that all the correct IKTs must be present to proceed with diagnosis of the system.
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R2 CHECK FOR COMMUNICATION WITH THE IPC AND SJB
- Enter the following diagnostic mode on the scan tool: Network Test .
- Does the IPC or SJB fail the network test?
Yes
REFER to Module Communications Network Testing and Inspection.
No
GO to R3.
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R3 REPROGRAM THE IKT KEYS
- Erase and program all of the IKT keys using the scan tool method. Refer to Anti-Theft - Passive Anti-Theft System (PATS) Programming and Relearning.
- Erase all IPC DTCs.
- Enter the following diagnostic mode on the scan tool: IPC Self-Test .
- Is DTC B109E:51 retrieved again?
Yes
GO to R5.
No
GO to R4.
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R4 CHECK THE OPERATION OF THE RKE TRANSMITTER
- Press any button on the suspect IKT key.
- Does the RKE transmitter operate?
Yes
The system is operating normally. The concern may have been caused by an improperly programmed IKT key.
No
GO to Pinpoint Test L. Pinpoint Test L: The Remote Keyless Entry (RKE) Transmitter Is Inoperative
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R5 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new SJB. REFER to Multifunction Electronic Modules Service and Repair. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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