SYSTEM DIAGRAM

Signal transmission function list
| Signal name | Input | Output | Description |
|---|---|---|---|
| Combination switch signal | Combination switch (lighting and turn signal switch) | BCM | Transmits the combination switch signal to the BCM. |
| High beam request signal | BCM |
|
Transmits the high beam request signal via CAN communication. |
| Low beam request signal | BCM | IPDM E/R (CAN) | Transmits the low beam request signal via CAN communication. |
OUTLINE
Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.
Control by BCM
Combination switch reading function
Exterior lamp battery saver function
Control by IPDM E/R
Relay control function
BCM turns the exterior lamp OFF*, according to the Nissan Murano vehicle status when ignition switch OFF while exterior lamp is ON, for preventing battery discharge.
*: Headlamp (HI/LO).
EXTERIOR LAMP BATTERY SAVER ACTIVATION
BCM activates the timer and turns the exterior lamp OFF 45 seconds after the ignition switch is placed ON→OFF with the exterior lamps ON.
When in any of following conditions (after the exterior lamp battery saver is activated), exterior lamps can be turned ON:
Ignition switch OFF→ACC/ON
Lighting switch is changed
Front Fog Lamp System