| Circuit Diagram |

| Rear Curtain Unit Connector |

| PIN NO. | Connector | PIN NO. | Connector |
| 1 | B+ | 8 | IG2 |
| 2 | - | 9 | Inhibitor “R” switch |
| 3 | Power GND | 10 | Rear curtain switch |
| 4 | Power B+ | 11 | Vehicle speed sensor |
| 5 | - | 12 | Inhibitor “P” switch |
| 6 | Motor UP | 13 | - |
| 7 | Signal GND | 14 | Motor DOWN |
Description You can up & down rear curtain automatically by pressing the rear curtain switch. Rear curtain protect passenger from a direct ray of light by covering rear glass.
Inspection Connect the battery voltage and check the rear curtain motor rotation. If the motor does not operate properly, substitute with a known-good rear curtain motor and check for proper operation.
Specification ItemSpecificationUltrasonic sensorVoltage ratingDC 12 VDetecting range30 cm ~ 120 cmOperation voltageDC 9 ~ 16 VOperation currentMAX 300 mAOperation temperature-30°C ~ +80°C (-22°C ~ +176°C)Operation frequency48 ± 5 KHzEffective operating velocity10 KPH (6.
Description The used radar frequency of BSD is two, "North America region" and "Except North America region". If it replaces BSD unit, BSD unit has to perform the procedure of variant coding. BSD Variant Coding 1. Select the "BSD Variant Coding" procedure in BSD system.