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 |
|---|---|---|
| B1320 | Driver Door Ajar Circuit Open | GO to PINPOINT TEST F . |
| B1328 | Passenger Door Ajar Circuit Open | GO to PINPOINT TEST F . |
| B1336 | Door Ajar RR Circuit Open | GO to PINPOINT TEST F . |
| B1572 | Door Ajar LR Circuit Open | GO to PINPOINT TEST F . |
| B1688 | Lamp Dome Input Circuit Short to Ground | GO to PINPOINT TEST F . |
| B2077 | Liftgate Ajar Sw Circuit Failure | GO to PINPOINT TEST F . |
| B2A35 | Interior Lighting Output Circuit Open | If the interior lamps are inoperative, GO to PINPOINT TEST E . If the interior lamps stay on continuously, GO to PINPOINT TEST F . |
| B2A36 | Interior Lighting Output Circuit Short to Ground | GO to PINPOINT TEST E . |
| B2A38 | Floor Lamp Output Circuit Short to Ground | DIAGNOSE all other DTCs and symptoms first. If no other DTCs or symptoms are present, INSPECT the Smart Junction Box (SJB) and C2280a for bent pins, loose or corroded connections. If no concerns are found, INSTALL a new SJB . REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| B2A3A | Puddle Lamp Output Circuit Short to Ground | DIAGNOSE all other DTCs and symptoms first. If no other DTCs or symptoms are present, INSPECT the SJB
and C2280c for bent pins, loose or corroded connections. If no concerns are found, INSTALL a new SJB . REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| All other DTCs | - | REFER to the Diagnostic Trouble Code (DTC) Chart in DIAGNOSTIC TROUBLE CODE (DTC) CHART . |