Nissan Sentra manuals

Nissan Sentra Service Manual: System

Body control system

Body control system : system description

OUTLINE

BCM CONTROL FUNCTION LIST


Combination switch reading system


Combination switch reading system

Combination switch reading system : system diagram

Combination switch reading system : system description


Combination switch reading system : system description

OUTLINE

COMBINATION SWITCH MATRIX

Combination switch circuit
Combination switch circuit

Combination switch INPUT-OUTPUT system list

COMBINATION SWITCH READING FUNCTION


COMBINATION SWITCH READING FUNCTION

Description

NOTE:


NOTE:

BCM reads the status of the combination switch at 60 ms intervals when BCM is controlled at low power consumption control mode.

BCM operates as follows and judges the status of the combination switch.

Operation Example


Operation Example

In the following operation example, the combination of the status signals of the combination switch is replaced as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.

Example 1: When a switch (TAIL LAMP) is turned ON


Example 2: When some switches (TURN RH, TAIL LAMP) are turned ON


Wiper intermittent dial position

Bcm judges the wiper intermittent dial 1 - 7 by the status of int volume 1, 2 and 3 switches.

Note:


Note:

For details of wiper intermittent dial position, refer to WW-8, "System Description".

Signal buffer system

Signal buffer system : system diagram

Signal buffer system : system description


Signal buffer system : system description

Outline

Bcm has the signal transmission function that outputs/transmits each input/received signal to each unit.

Signal transmission function list

Signal name

Input

Output

Description

  • Ignition switch on signal
  • Ignition switch signal
Engine switch (push switch) IPDM E/R (CAN) Inputs the push-button ignition switch (push switch) signal and transmits the ignition switch status judged with BCM via CAN communication.
Door switch signal Any door switch
  • Combination meter (can)
  • Ipdm e/r (can)
Inputs the door switch signal and transmits it via can communication.

Power consumption control system

POWER CONSUMPTION CONTROL SYSTEM : System Diagram

Power consumption control system : system description


Power consumption control system : system description

Outline

Normal mode (wake-up)

Can communication sleep mode (can sleep)

Low power consumption mode (bcm sleep)

Low power consumption control with bcm

BCM reduces the power consumption with the following operation in the low power consumption mode.

Sleep mode activation

Sleep condition

Can sleep condition

Bcm sleep condition

  • Receiving the sleep-ready signal (ready) from all units
  • Ignition switch: OFF
  • Vehicle security system alarm and panic alarm: no operation
  • Warning lamp: Not operation
  • Intelligent key system buzzer: no operation
  • Brake switch: off
  • Turn signal indicator lamp: No operation
  • Exterior lamp: off
  • Door lock status: no change
  • CONSULT communication status: No communication
  • Meter display signal: non-transmission
  • Door switch status: no change
  • Rear window defogger: OFF
  • Interior room lamp battery saver: time out
  • Rap system: off
  • Push-button ignition switch (push switch) illumination: OFF
  • Nats: no operation
  • Remote keyless entry receiver communication status: no communication
  • Tire pressure monitoring system: Stop

Wake-up operation

Bcm wake-up condition

Can wake-up condition

  • Door lock assembly lh (key cylinder switch): lock or unlock
  • Door lock switch: OFF→ON
  • Door unlock switch: offƒ¸on
  • Trunk opener switch: offƒ¸on
  • Remote keyless entry receiver: receiving valid keyfob
  • Receiving the sleep-ready signal (Not-ready) from any units
  • Push-button ignition switch (push switch): OFF→ON
  • Hazard switch: offƒ¸on
  • PASSING switch: OFF→ON, ON→OFF
  • Tail lamp switch: offƒ¸on
  • Driver door switch: OFF→ON, ON→OFF
  • Passenger door switch: off ƒ¸ on, on ƒ¸ off
  • Trunk switch: offƒ¸on, onƒ¸off
  • Driver door request switch: offƒ¸on
  • Passenger door request switch: OFF→ON
  • Stop lamp switch 2 signal: ON
  • Remote keyless entry receiver: receiving valid keyfob
System description
Component parts Body control system Body control system : component parts location BCM (view with instrument panel removed) Combination switch reading system Combination switch reading s ...

Diagnosis system (bcm)
Common item COMMON ITEM : CONSULT Function (BCM - COMMON ITEM) Application item Consult performs the following functions via can communication with bcm. Direct diagnostic mode Descriptio ...

Other materials:

Dtc/circuit diagnosis
Power supply and ground circuit Audio unit AUDIO UNIT : Diagnosis Procedure Regarding wiring diagram information, refer to av-88, "wiring diagram". 1.Check fuse Check that the following fuses are not blown. Are the fuses blown? Yes >> replace the blown fuse after repairing ...

CVT Fluid filter
Exploded View Transaxle assembly CVT fluid filter Fluid filter cover CVT fluid Removal and Installation REMOVAL Remove neighboring parts of CVT fluid filter. Remove fluid filter cover mounting bolt (A). Remove fluid filter cover (1) from transaxle by rotating leftw ...

Ipdm-e branch line circuit
Diagnosis Procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the ipdm e/r for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? Yes ...

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