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 (Instrument Panel Cluster) then sends the TIC (Transmitter Identification Code) data to the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN). The SJB (Smart Junction Box) stores the TIC (Transmitter Identification Code) data in memory and sends an acknowledgement back to the IPC (Instrument Panel Cluster) that the TIC (Transmitter Identification Code) data was successfully programmed.

- DTC B109E:51 (Remote Keyless Entry: Not Programmed)- a continuous DTC that sets when the IPC (Instrument Panel Cluster) sends the RKE (Remote Keyless Entry) TIC (Transmitter Identification Code) data to the SJB (Smart Junction Box) over the MS-CAN (Medium Speed Controller Area Network) , and it does not receive a response from the SJB (Smart Junction Box) that the TIC (Transmitter Identification Code) data has been stored.

This pinpoint test is intended to diagnose the following:

- IKT (Integrated Keyhead Transmitter) programming

- MS-CAN (Medium Speed Controller Area Network)

- SJB (Smart Junction Box)

PINPOINT TEST R : DTC B109E:51

R1 CHECK FOR THE CORRECT RKE (Remote Keyless Entry) TRANSMITTERS

- NOTE: Make sure the IKTs (Integrated Keyhead Transmitters) 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 (Integrated Keyhead Transmitters) are used with the vehicle.


Are all the correct IKTs (Integrated Keyhead Transmitters) present?

Yes
GO to R2.

No
The system cannot be tested without the correct IKTs (Integrated Keyhead Transmitters). INFORM the customer that all the correct IKTs (Integrated Keyhead Transmitters) must be present to proceed with diagnosis of the system.

R2 CHECK FOR COMMUNICATION WITH THE IPC (Instrument Panel Cluster) AND SJB (Smart Junction Box)

- Enter the following diagnostic mode on the scan tool: Network Test.

Does the IPC (Instrument Panel Cluster) or SJB (Smart Junction Box) fail the network test?

Yes
REFER to Information Bus.

No
GO to R3.

R3 REPROGRAM THE IKT (Integrated Keyhead Transmitter) KEYS

- Erase and program all of the IKT (Integrated Keyhead Transmitter) keys using the scan tool method. Refer to Antitheft and Alarm Systems.

- Erase all IPC (Instrument Panel Cluster) DTCs.

- Enter the following diagnostic mode on the scan tool: IPC (Instrument Panel Cluster) Self-Test.

Is DTC B109E:51 retrieved again?

Yes
GO to R5.

No
GO to R4.

R4 CHECK THE OPERATION OF THE RKE (Remote Keyless Entry) TRANSMITTER

- Press any button on the suspect IKT (Integrated Keyhead Transmitter) key.

Does the RKE (Remote Keyless Entry) transmitter operate?

Yes
The system is operating normally. The concern may have been caused by an improperly programmed IKT (Integrated Keyhead Transmitter) key.

No
GO to Pinpoint Test L. Pinpoint Test L: The Remote Keyless Entry (RKE) Transmitter Is Inoperative

R5 CHECK FOR CORRECT SJB (Smart Junction Box) OPERATION

- Disconnect all the SJB (Smart Junction Box) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the SJB (Smart Junction Box) 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 (Smart Junction Box). 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.