Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Smart Junction Box (SJB) DTC Chart
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION Smart Junction Box (SJB) DTC Chart
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
SMART JUNCTION BOX (SJB) DTC CHART
| DTC | Description | Action |
|---|---|---|
| B106E | Solid State Driver Disabled Due to Short Circuit | GO to PINPOINT TEST A . |
| B106F | Module Disabled Due to External Fault | GO to PINPOINT TEST A . |
| B1317 | Battery Voltage High | GO to PINPOINT TEST B . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST C . |
| B1342 | ECU is Faulted | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new SJB . REFER to SMART JUNCTION BOX (SJB) . |
| B2A21 | One or More Configuration Files Missing or Corrupt | CONFIGURE the Smart Junction Box (SJB). REFER to PROGRAMMABLE MODULE INSTALLATION (PMI) to carry out Programmable Module Installation (PMI). |
| P062F | Internal Control Module EEPROM Error | INSTALL a new SJB . REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| U0155 | Lost Communication with Instrument Panel Cluster (IC ) Control Module | GO to PINPOINT TEST D . |
| U2472 | Unexpected Ignition State | This DTC is only set when an on-demand self-test is run with the test entry conditions not correct. CLEAR the DTC. REPEAT the self-test with the ignition in the ON position and the vehicle stationary. REFER to PINPOINT TEST F: DTCS B2844 AND U2472 . |
| U2473 | Unexpected Vehicle Speed (VSS ) | This DTC is only set when an on-demand self-test is run with the test entry conditions not correct. CLEAR the DTC. REPEAT the self-test with the ignition in the ON position and the vehicle stationary. |
| All other DTCs | - | REFER to the DIAGNOSTIC TROUBLE CODE (DTC) CHART . |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.