Test N: The Parking, Rear Or License Plate Lamps Are On Continuously

PINPOINT TEST N: THE PARKING, REAR OR LICENSE PLATE LAMPS ARE ON CONTINUOUSLY

N1-N3:

N4-N7:

Normal Operation
The smart junction box (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.

DTC B1470 - sets when the SJB detects a short to ground from the headlamp switch input circuit (parking lamps).

DTC B2035 - sets when the SJB detects a short to voltage to the side marker lamps voltage supply circuit.

DTC B2491 - sets when the SJB detects a short to voltage to the RH front parking lamp voltage supply circuit.

DTC B2493 - sets when the SJB detects a short to voltage to the LH front parking lamp voltage supply circuit.

DTC B2523 - sets when the SJB detects a short to voltage to the license plate lamp and both tail lamp voltage supply circuits.

Possible Causes
- Circuit 14 (BN) short to voltage
- Circuit 667 (WH/RD) short to voltage
- Circuit 1339 (BK/PK) short to voltage
- Circuit 1340 (DG) short to voltage
- Circuit 1361 (RD/PK) short to voltage
- Circuit 1366 (TN/RD) short to voltage
- Circuit 1364 (DB/YE) short to voltage
- Circuit 1370 (DG/LG) short to voltage
- Circuit 1401 (BK/LG) short to ground
- Circuit 1729 (DB/YE) short to voltage
- Circuit 1784 (TN/RD) short to voltage
- Headlamp switch
- BEC
- SJB