Pinpoint Test R: DTC B109E:51

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

R1 CHECK FOR THE CORRECT RKE TRANSMITTERS
- 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.
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 -- FUSION, MILAN & MKZ article.
- No : GO to R3.
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) -- FUSION, MILAN & MKZ article.
- 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.
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 .
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 -- FUSION, MILAN & MKZ article. 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.