Nissan Sentra B18 (2020-2025) Service Manual: Body Control System
System Description
OUTLINE
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The BCM controls the various electrical components. It inputs the information required for control via CAN communication and the signal received from each switch and sensor.
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The BCM has a combination switch reading function for reading the operation status of the combination switches (lighting, turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical components. It also has the signal transmission function as the passed point of the signal and the a power saving control function that reduces the power consumption with the ignition switch OFF.
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The BCM is equipped with the diagnosis function that performs diagnosis and various settings with CONSULT.
BCM CONTROL FUNCTION LIST
|
System |
Reference |
|
|---|---|---|
|
Combination switch reading system |
System Description |
|
|
Signal buffer system |
System Description |
|
|
Power consumption control system |
System Description |
|
|
Shipping mode control system |
System Description |
|
|
Auto light system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Headlamp system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
HBA (high beam assist) system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Daytime running light system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Turn signal and hazard warning lamp system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Parking, license plate, side marker and tail lamp system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Stop lamp system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Exterior lamp battery saver system |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Light reminder warning |
System Description (Halogen headlamp) System Description (LED headlamp) |
|
|
Headlamp warning |
System Description |
|
|
Illumination control system |
System Description |
|
|
Interior room lamp control system |
System Description |
|
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Interior room lamp battery saver system |
System Description |
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|
Front wiper and washer system |
System Description |
|
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Rear window defogger system |
System Description |
|
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Warning chime system |
System Description |
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Power door lock system |
System Description |
|
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Trunk lid opener system |
System Description |
|
|
Intelligent Key system/engine start function |
System Description |
|
|
Nissan anit-theft system (NATS) |
System Description |
|
|
Nissan Sentra Vehicle security system |
System Description |
|
|
Panic alarm |
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|
Intelligent Key system |
Intelligent Key system |
System Description |
|
Remote engine start function |
System Description |
|
|
Remote keyless entry function |
System Description |
|
|
Door lock function |
System Description |
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|
Warning function |
System Description |
|
|
Power window system |
System Description |
|
|
RAP (retained accessory power) system |
— |
|
|
TPMS (tire pressure monitoring system) |
System Description |
|
System
...
Combination Switch Reading System
System Description
System Description
SYSTEM DIAGRAM
OUTLINE
The BCM reads the status of the combination switch
and recognizes the status of each switch.
...
Other materials:
Diagnosis Procedure
Diagnosis Procedure
CHECK FUSE
Ignition switch OFF.
Check that any of the following fuses are not blown
(open):
...
Insufficient Cooling
Diagnosis Procedure
Diagnosis Procedure
Symptom
Insufficient cooling
No cool air comes out. (Air flow volume is
normal.)
Note:
Perform self-diagnoses with CONSULT before
performing symptom diagnosis. If any DTC is detected, perform the
...
System
Headlamp System
System Description
System Description
SYSTEM DIAGRAM
OUTLINE
The headlamp is controlled by the combination switch
reading function and headlamp control function of the BCM, and the
Smart FET control function of the IPDM E/R.
Signal transmission function list
...
