Nissan Rogue Service Manual: System description

COMPONENT PARTS

Component Parts Location

1. Right rear wheel area
2. Instrument panel
3. Engine compartment
4.  Left side of instrument panel (view with trim panel removed)

No.	Part	Function
1	Optical sensor	Refer to EXL-140, "Optical Sensor".
2	LED headlamp control module	Turns the headlamps ON according to the power supply from IPDM E/R.
3	Headlamp aiming motor	Moves the headlamps up/down based on inputs from the front and rear height sensors.
4	Front height sensor	Sends the vehicles pitch angle signal to the IPDM E/R necessary for adjusting the headlamp aiming motors.
5	Rear height sensor	Sends the vehicles pitch angle signal to the IPDM E/R necessary for adjusting the headlamp aiming motors.
6	Combination switch (Lighting and turn signal switch)	Refer to BCS-9, "COMBINATION SWITCH READING SYSTEM : System Description".
7	Hazard switch	Refer to EXL-141, "Hazard Switch".
8	IPDM E/R	Supplies voltage to the load according to the request from BCM (via CAN communication).  Refer to PCS-4, "Component Parts Location" for detailed installation location.
9	BCM	Detects each switch condition by the combination switch reading function.  Judges that the exterior lamps are turned ON according to the vehicle condition.  Requests the headlamp (HI/LO), tail lamp and front fog lamp ON to IPDM E/R (via CAN communication).  Requests high beam indicator lamp ON to the combination meter (via CAN communication).  Judges the outside brightness from the optical sensor signal.  Judges the ON/OFF timing according to the vehicle condition.  Judges the ON/OFF status of the exterior lamp according to the outside brightness and the vehicle condition.  Refer to BCS-7, "BODY CONTROL SYSTEM : Component Parts Location" (with Intelligent Key) or BCS-79, "BODY CONTROL SYSTEM : Component Parts Location" (without Intelligent Key).

Optical Sensor

Optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.

Hazard Switch

Inputs the hazard switch ON/OFF signal to BCM.

SYSTEM

HEADLAMP SYSTEM

HEADLAMP SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

Headlamp is controlled by combination switch reading function and headlamp control function of BCM, and smart FET control function of IPDM E/R.

HEADLAMP (LO) OPERATION

•  BCM detects the combination switch condition with the combination switch reading function.
•  BCM transmits the low beam request signal to IPDM E/R with CAN communication according to the headlamp (LO) ON condition.

Headlamp (LO) ON condition

•  Lighting switch 2ND
•  Lighting switch AUTO (auto light function ON judgment)
•  Lighting switch AUTO, with the front fog lamp switch ON and the power switch ON
•  Lighting switch PASS

HEADLAMP (HI) OPERATION

• BCM transmits the high beam request signal to IPDM E/R and the combination meter with CAN communication according to the headlamp (HI) ON condition.

Headlamp (HI) ON condition

•  Lighting switch HI with the lighting switch 2ND or AUTO (auto light function ON judgment)
•  Lighting switch PASS
•  Lighting switch AUTO, with the front fog lamp switch ON, the power switch ON and lighting switch HI

•  Combination meter turns the high beam indicator lamp ON according to the high beam request signal.
•  IPDM E/R turns the headlamp ON according to the high beam request signal.

  HEADLAMP SYSTEM : Fail-Safe

CAN COMMUNICATION CONTROL

When CAN communication with BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If no CAN communication is available with BCM

Control part	Fail-safe operation
Headlamp	Turns ON the headlamp low beam when the power switch is turned ON  Turns OFF the headlamp low beam when the power switch is turned OFF

AUTO LIGHT SYSTEM

AUTO LIGHT SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

•  Auto light system is controlled by each function of BCM and IPDM E/R.

Controlled by BCM:

•  Combination switch reading function
•  Headlamp control function
•  Auto light function
•  Delay timer function
•  Auto light adjustment system
• ontrolled by IPDM E/R:

•  Auto light system has the auto light function and delay timer function.
•  Auto light function automatically turns ON/OFF the exterior lamps* and each illumination automatically, depending on the outside brightness.
•  When auto light system turns the exterior lamps ON with the power switch OFF, delay timer function turns the exterior lamps OFF, depending on the vehicle condition with the auto light function after a certain period of time.

*: Headlamp (LO/HI), parking lamp, side marker lamp, tail lamp and front fog lamp (Headlamp HI and front fog lamp depend on the combination switch condition).

AUTO LIGHT FUNCTION

•  BCM detects the combination switch condition with the combination switch reading function.
•  BCM supplies voltage to optical sensor when the power switch is turned ON or ACC.
•  Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
•  BCM judges outside brightness from the optical sensor signal and judges ON/OFF condition of the exterior lamp and each illumination according to the outside brightness.
•  BCM transmits each request signal to IPDM E/R and combination meter via CAN communication according to ON/OFF condition by the auto light function.

NOTE: ON/OFF timing differs based on the sensitivity from the setting. The setting can be set by CONSULT. Refer to.

AUTO LIGHT ADJUSTMENT SYSTEM

The auto light adjustment system automatically, dims/brightens the display, according to brightness outside the vehicle, when lighting switch 1ST, lighting switch 2ND or lighting switch AUTO is operated. Refer to EXL- 143, "AUTO LIGHT SYSTEM : System Description".

DELAY TIMER FUNCTION

BCM turns the exterior lamp OFF depending on the vehicle condition with the auto light function when the power switch is turned OFF.

•  Turns the exterior lamp OFF 5 minutes after detecting that any door opens. (Door switch ON).
•  Turns the exterior lamp OFF a certain period of time* after closing all doors. (Door switch ON→OFF).
•  Turns the exterior lamp OFF with the power switch ACC or the light switch OFF.

*: The preset time is 45 seconds. The timer operating time can be set by CONSULT. Refer to BCS-19, "HEADLAMP : CONSULT Function (BCM - HEADLAMP)" with (Intelligent Key) or BCS-90, "HEADLAMP : CONSULT Function (BCM - HEADLAMP)" (without Intelligent Key).

NOTE: When any position other than the light switch AUTO is set, the auto light system function switches to the exterior lamp battery saver function.

DAYTIME RUNNING LIGHT SYSTEM

DAYTIME RUNNING LIGHT SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

•  Daytime running light is controlled by daytime running light control function and combination switch reading function of BCM, and smart FET of IPDM E/R.

DAYTIME RUNNING LIGHT OPERATION

•  BCM detects the combination switch condition by the combination switch reading function.
•  BCM detects the vehicle condition according to power switch
•  BCM detects the parking brake condition by the parking brake switch signal received from combination meter using CAN communication.
•  BCM transmits the daytime running light request signal to IPDM E/R using CAN communication according to the daytime running light ON condition.

Daytime running light ON condition:

•  Vehicle condition READY
•  Lighting switch OFF or 1ST
•  Lighting switch AUTO, and the auto light function OFF judgment
•  Parking brake switch OFF

•  IPDM E/R controls the daytime running light request signal.
•  Power is supplied from the IPDM E/R to the daytime lights.

HEADLAMP AIMING CONTROL SYSTEM (AUTO)

HEADLAMP AIMING CONTROL SYSTEM (AUTO) : System Diagram

HEADLAMP AIMING CONTROL SYSTEM (AUTO) : System Description

OUTLINE

•  Headlamp aiming control system is controlled by the IPDM E/R.
•  The IPDM E/R controls the headlamp light axis height appropriately depending on the vehicle front and rear height sensor positions.
•  Auto levelizer control unit detects the vehicle condition necessary for the aiming motor control with the following signals.

•  Front and rear height sensor signals

HEADLAMP AUTO AIMING OPERATION

•  The IPDM E/R calculates vehicle pitch angle from the front and rear height sensor signals and determines the necessary correction to compensate the deviation from standard light axis position.
•  The IPDM E/R outputs aiming motor drive signal when operating conditions are met.

Operating condition:

•  Ignition switch ON
•  Parking lamp ON

•  The IPDM E/R unit changes the aiming motor drive signal when any of the correcting conditions are detected. Output is maintained if other condition is detected.

Correcting condition:

•  Parking lamp is turned ON.
•  Vehicle posture becomes stable after the vehicle posture change is detected with the parking lamp ON and the vehicle stopped.
•  Vehicle speed is maintained with the parking lamp ON and the vehicle driven.

CAUTION: If the suspension is worn, the adjusted axis position may differ from the preset position.

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

Turn signal lamp and the hazard warning lamp is controlled by combination switch reading function and the flasher control function of BCM.

TURN SIGNAL LAMP OPERATION

•  BCM detects the combination switch condition by the combination switch reading function.
•  BCM supplies voltage to the right (left) turn signal lamp circuit when the power switch is ON and the turn signal switch is in the right (left) position. BCM blinks the turn signal lamp.

HAZARD WARNING LAMP OPERATION

BCM supplies voltage to both turn signal lamp circuit when the hazard switch is ON. BCM blinks the hazard warning lamp.

TURN SIGNAL INDICATOR LAMP AND TURN SIGNAL OPERATION

•  BCM transmits the turn signal indicator lamp signal to the combination meter using CAN communication while the turn signal lamp and the hazard warning lamp are operating.
•  Combination meter outputs the turn signal sound with the integrated buzzer while blinking the turn signal indicator lamp according to the turn signal indicator lamp signal.

HIGH FLASHER OPERATION

•  BCM detects the turn signal lamp circuit status from the current value.
•  BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal lamp operating.

NOTE: The blinking speed is normal while operating the hazard warning lamp.

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

Parking, license plate, side marker and tail lamps are controlled by combination switch reading function and headlamp control function of BCM, and smart FET control function of IPDM E/R.

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMPS OPERATION

•  BCM detects the combination switch condition by the combination switch reading function.
•  BCM transmits the position light request signal to IPDM E/R and the combination meter via CAN communication according to the ON/OFF condition of the parking, license plate, side marker and tail lamps.

Parking, license plate, side marker and tail lamps ON condition:

• Lighting switch 1ST
•  Lighting switch 2ND
•  Lighting switch AUTO, and the auto light function ON judgment
•  Lighting switch AUTO, with the front fog lamp switch ON and the power switch ON

•  IPDM E/R turns the integrated tail lamp ON and turns the parking, license plate, side marker and tail lamps ON according to the position light request signal.
•  Combination meter turns the tail lamp indicator lamp ON according to the position light request signal.

PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : Fail-Safe

CAN COMMUNICATION CONTROL

When CAN communication with BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If no CAN communication is available with BCM

Control part	Fail-safe operation
Parking lamp  License plate lamp  Illumination  Tail lamp  Side marker lamp	Turns ON the tail lamp when the power switch is turned ON  Turns OFF the tail lamp when the power switch is turned OFF

FRONT FOG LAMP SYSTEM

FRONT FOG LAMP SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

Front fog lamp is controlled by combination switch reading function, front fog lamp control function of BCM, and smart FET function of IPDM E/R.

FRONT FOG LAMP OPERATION

•  BCM detects the combination switch condition by the combination switch reading function.
•  BCM transmits the front fog lights request signal to IPDM E/R and the combination meter via CAN communication according to the front fog lamp ON condition.

Front fog lamp ON condition:

• Front fog lamp switch ON, and any of the following condition is satisfied (except for the high beam ON).

•  Lighting switch 2ND
•  Lighting switch AUTO and the power switch ON

IPDM E/R turns the front fog lamp ON according to the front fog lights request signal.

Combination meter turns the front fog lamp indicator lamp ON according to the front fog lights request signal.

FRONT FOG LAMP SYSTEM : Fail-Safe

CAN COMMUNICATION CONTROL

When CAN communication with BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If no CAN communication is available with BCM

Control part	Fail-safe operation
Front fog lamp	Front fog lamp OFF

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXTERIOR LAMP BATTERY SAVER SYSTEM : System Description

SYSTEM DIAGRAM

OUTLINE

•  Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.

Controlled by BCM:

•  Combination switch reading function
•  Headlamp control function
•  Exterior lamp battery saver function

Controlled by IPDM E/R:

•  BCM turns the exterior lamps* OFF after a period of time to prevent the battery from over-discharge when the power switch is turned OFF with the exterior lamps ON.

*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp, license plate lamp and front fog lamp

EXTERIOR LAMP BATTERY SAVER ACTIVATION

BCM activates the timer and turns the exterior lamp OFF 5 minutes after the power switch is turned from ON → OFF with the exterior lamps ON.

NOTE:

•  Headlamp control function turns the exterior lamps ON normally when the power switch is turned ACC or set the vehicle to READY (both before and after the exterior lamp battery saver is turned OFF).
•  The timer starts at the time that the lighting switch is turned from OFF → 1ST or 2ND with the exterior lamps OFF.

DIAGNOSIS SYSTEM (BCM)

WITH INTELLIGENT KEY

WITH INTELLIGENT KEY : CONSULT Function (BCM - COMMON ITEM)

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

Direct Diagnostic Mode	Description
Ecu Identification	The BCM part number is displayed
Self Diagnostic Result	The BCM self diagnostic results are displayed
Data Monitor	The BCM input/output data is displayed in real time.
Active Test	The BCM activates outputs to test components.
Work support	The settings for BCM functions can be changed
Configuration	The vehicle specification can be read and saved.  The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr	The result of transmit/receive diagnosis of CAN communication is displayed.

SYSTEM APPLICATION

BCM can perform the following functions.

WITH INTELLIGENT KEY : CONSULT Function (BCM - HEADLAMP)

DATA MONITOR

ACTIVE TEST

WORK SUPPORT

*: Initial setting

WITH INTELLIGENT KEY : CONSULT Function (BCM - FLASHER)

DATA MONITOR

ACTIVE TEST

WITHOUT INTELLIGENT KEY

WITHOUT INTELLIGENT KEY : CONSULT Function (BCM - COMMON ITEM)

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

Direct Diagnostic Mode	Description
Ecu Identification	The BCM part number is displayed.
Self Diagnostic Result	The BCM self diagnostic results are displayed.
Data Monitor	The BCM input/output data is displayed in real time.
Active Test	The BCM activates outputs to test components.
Work support	The settings for BCM functions can be changed.
Configuration	The vehicle specification can be read and saved.  The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr	The result of transmit/receive diagnosis of CAN communication is displayed.

SYSTEM APPLICATION

BCM can perform the following functions.

WITHOUT INTELLIGENT KEY : CONSULT Function (BCM - HEADLAMP)

DATA MONITOR

ACTIVE TEST

WITHOUT INTELLIGENT KEY : CONSULT Function (BCM - FLASHER)

DATA MONITOR

ACTIVE TEST

DIAGNOSIS SYSTEM (IPDM E/R)

CONSULT Function (IPDM E/R)

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with IPDM E/R.

Direct Diagnostic Mode	Description
Ecu Identification	The IPDM E/R part number is displayed.
Self Diagnostic Result	The IPDM E/R self diagnostic results are displayed.
Data Monitor	The IPDM E/R input/output data is displayed in real time.
Active Test	The IPDM E/R activates outputs to test components.
CAN Diag Support Mntr	The result of transmit/receive diagnosis of CAN communication is displayed.

ECU IDENTIFICATION

The IPDM E/R part number is displayed.

SELF DIAGNOSTIC RESULT

Refer to PCS-20, "DTC Index".

DATA MONITOR

ACTIVE TEST

CAN DIAG SUPPORT MNTR

Refer to LAN-14, "CAN Diagnostic Support Monitor".