Trailer Lamps
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. TEST the system for normal operation. |
| B2070 | Trailer Tow Relay Coil(s) Circuit Failure | If a trailer lamp is inoperative, go to Pinpoint Test W
. If a trailer lamp is always on, go to Pinpoint Test X . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |