Test R: One or More Parking, Rear or License Lamp Is Inoperative

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

R1-R3:

R4:

R4-R5:

R6-R7:

R7-R9:

R9-R10:

R11-R13:

R13-R14:

R14-R15:

R15-R16:

R16-R18:

Normal Operation
Under normal operation, when park lamps are selected the smart junction box (SJB) sends voltage to the front parking through (RH) circuit 1339 (BK/PK) and (LH) 1340 (DG) and the front side marker lamps through (RH) circuit 14 (BN) and (LH) 667 (WH/RD). The SJB sends voltage to the rear side marker lamps through circuit 1361 (RD/PK). The SJB sends voltage to the RH rear parking lamps through circuits 1366 (TN/RD) and 1729 (DB/YE) and the LH rear parking lamps through circuits 1364 (DB/YE), 1366 (TN/RD), 1784 (TN/RD) and 1729 (DB/YE). The SJB sends voltage to the license lamps through circuit 1370 (DG/LG). The lamps are grounded through circuit 1205 (BK).

Possible Causes
- An open in circuit 14 (BN), 667 (WH/RD), 1339 (BK/PK), 1340 (DG), 1361 (RD/PK), 1366 (TN/RD), 1784 (TN/RD), 1364 (DB/YE), 1729 (DB/YE) or 1205 (BK)
- A short to ground in circuit 14 (BN), 667 (WH/RD), 1339 (BK/PK), 1340 (DG), 1361 (RD/PK), 1366 (TN/RD), 1784 (TN/RD), 1364 (DB/YE) or 1729 (DB/YE)
- Lamp
- Bussed electrical center (BEC)
- Smart junction box (SJB)