Exterior Lighting DTCS
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Is Defective | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| B1472 | Headlamp Input Circuit Short to Ground | CHECK for correct OEM bulbs. INSTALL new components as necessary. |
| B2598 | Headlamp Relay Circuit Failure | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B2598 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| B2249 | Headlamp Relay Coil Short to Battery | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B2249 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Is Defective | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| B1696 | Autolamp On Circuit Short to Ground | Go to Pinpoint Test F . |
| B1790 | Autolamp Sensor Input Circuit Failure | If the autolamps are inoperative, go to Pinpoint Test F
. If the autolamps are always on, go to Pinpoint Test G . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Is Defective | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| B1577 | Lamp Park Input Circuit Short to Battery | Go to Pinpoint Test P . |
| B2251 | Parklamp Output Relay Driver Circuit Failure | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B2251 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| B2252 | Parklamp Output Relay Driver Short to Battery | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B2252 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |