Smart Junction Box (SJB): Installation

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Align the SJB bracket to the upper 2 mounting studs, then rotate the bracket onto the lower mounting stud.

If necessary, install the 3 nuts and the SJB bracket.
- Tighten to 5 Nm (44 lb-in).
Install the SJB.
- Connect the SJB B+ connector.
- Locate the SJB into the 3 tabs and slide the SJB (to the right) to engage the SJB release tab into the SJB bracket.
- Connect the 6 electrical connectors.
- Install the 2 harness pushpins into the SJB.

NOTE: If the SJB was not replaced, this is the last step that is necessary.

Install the steering column cover.

NOTE: When successful, this step provides the calibration necessary for the SJB operation and clears DTCs B106D and B2477. The clearing of these DTCs indicates the calibration data has been successfully downloaded to the new SJB.

NOTE: The RKE transmitter portion of the integrated keyhead transmitter (IKT) key is automatically transferred during programmable module installation (PMI). Passive anti-theft system (PATS) programming is not necessary. If As-Built data is required during PMI, all (IKT or fob) remote transmitters must be programmed to the new SJB. Cycling the ignition to run for 6 seconds with each IKT will program the RKE function of the IKT key. For additional information, refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article for the remote transmitter programming instructions.

NOTE: DTC B2276 may be set, indicating there are less than 2 transmitters programmed to the SJB. For additional information, refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article.

Download the SJB configuration information from the scan tool. For additional information, refer to MODULE CONFIGURATION article.

NOTE: When successful, this step clears DTCs B2868, B2869, B2870 and B2871. The clearing of these DTCs indicates the SJB has recognized the tire pressure sensors during the training procedure.

Train the tire pressure sensors. For additional information, refer to WHEELS AND TIRES article.

NOTE: DTC C2780 will not clear if any of the pre-set DTCs are still present in the SJB. When successful, this step will clear the DTC C2780.

Carry out the SJB self-test (must include an on-demand self-test) and then repeat the self-test to confirm all DTCs have been cleared.
Rotate the instrument panel dimmer switch from the full dim position to the dome ON position. This will make sure that all displays are visible under all lighting conditions.