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Smart Junction Box (SJB): Installation

  1. 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).
  2. Install the SJB  .
    • Connect the SJB  B+ (battery lead, part of the 14290 harness) 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  .
  3. NOTE: If the SJB  was not replaced, this is the last step that is necessary.

    Install the steering column opening trim panel.

  4. 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 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 .

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

  5. 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 & TIRES .

  6. 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.

  7. Rotate the instrument panel dimmer switch from the full dim position to the dome ON position to calibrate the switch. This will make sure that all displays are visible under all lighting conditions.
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