Test N: One Or More Parking, Rear Or License Plate Lamp Is Inoperative

PINPOINT TEST N: ONE OR MORE PARKING, REAR OR LICENSE PLATE LAMP IS INOPERATIVE

N1-N4:

N5-N7:

N7-N9:

N9-N11:

N11-N13:

Normal Operation
The smart junction box (SJB) is provided voltage from the bussed electrical center (BEC) through circuit 1523 (DG). The SJB sends a voltage reference signal to the headlamp switch through circuit 1401 (BK/LG). When the headlamp switch is placed in the PARKING LAMPS ON position, the SJB provides voltage to the parking, license plate and side marker lamps. The lamps are grounded through circuit 1205 (BK).

Possible Causes
- Fuse
- Circuit 14 (BN) open or short to ground
- Circuit 667 (WH/RD) open or short to ground
- Circuit 1205 (BK) open
- Circuit 1339 (BK/PK) open or short to ground
- Circuit 1340 (DG) open or short to ground
- Circuit 1361 (RD/PK) open or short to ground
- Circuit 1366 (TN/RD) open or short to ground
- Circuit 1364 (DB/YE) open or short to ground
- Circuit 1370 (DG/LG) open or short to ground
- Circuit 1523 (DG) open
- Circuit 1729 (DB/YE) open or short to ground
- Circuit 1784 (TN/RD) open or short to ground
- BEC
- SJB