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) Diagnostic Trouble Code (DTC) Index
2005 Ford Taurus SEL, 4D SedanSECTION Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
DTC DESCRIPTION
| DTC | Description | Source | Action |
|---|---|---|---|
| B1302 | Delayed Accessory Relay Coil Circuit Failure | SJB | If the delayed accessory feature is inoperative, GO to PINPOINT TEST H . If the delayed accessory feature does not turn off, GO to PINPOINT TEST C . |
| B1304 | Delayed Accessory Relay Coil Circuit Short to Battery | SJB | GO to PINPOINT TEST H . |
| B1345 | Heated Rear Window Input Circuit Short to Ground | SJB | GO to PINPOINT TEST F . |
| B1347 | Heated Rear Window Relay Circuit Failure. | SJB | If the rear window does not defrost, GO to PINPOINT TEST E . If the rear window defrost does not turn off, GO to PINPOINT TEST F . |
| B1349 | Heated Rear Window Relay Short to Battery | SJB | GO to PINPOINT TEST E . |
| B1398 | Driver Power Window One-Touch Window Relay Circuit Failure | SJB | If only the one-touch down feature is inoperative, GO to PINPOINT TEST D . If the driver front window is inoperative, GO to PINPOINT TEST A . |
| B1400 | Driver Power Window One-Touch Window Relay Circuit Short to Battery | SJB | GO to PINPOINT TEST D . |
| B1405 | Driver Power Window Down Circuit Short to Battery | SJB | GO to PINPOINT TEST A . |
For a complete list of SJB DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
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.