Nissan Sentra Service Manual: Diagnosis system (BCM) (with intelligent key system)

Nissan Sentra Service Manual / Suspension / Road wheels & Tires / System description / Diagnosis system (BCM) (with intelligent key system)

Common item

COMMON ITEM : 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.

Air pressure monitor

Air pressure monitor

AIR PRESSURE MONITOR : CONSULT Function (BCM - AIR PRESSURE MONITOR)

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information

Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Register TPMS transmitter IDs

SELF DIAGNOSTIC RESULT

NOTE:

Before performing self diagnostic result, be sure to register the ID, or else the actual malfunction may be different from that displayed on CONSULT.

Refer to BCS-49, "DTC Index".

DATA MONITOR

Monitor Item [Unit]	Description
AIR PRESS FL [kPa, kg/cm2 or Psi]	Indicates air pressure of front LH tire.
AIR PRESS FR [kPa, kg/cm2 or Psi]	Indicates air pressure of front RH tire.
AIR PRESS RR [kPa, kg/cm2 or Psi]	Indicates air pressure of rear RH tire.
AIR PRESS RL [kPa, kg/cm2 or Psi]	Indicates air pressure of rear LH tire.
ID REGST FL1 [Done/Yet]	Indicates ID registration status of front LH transmitter.
ID REGST FR1 [Done/Yet]	Indicates ID registration status of front RH transmitter.
ID REGST RR1 [Done/Yet]	Indicates ID registration status of rear RH transmitter.
ID REGST RL1 [Done/Yet]	Indicates ID registration status of rear LH transmitter.
WARNING LAMP [Off/On]	Indicates condition of low tire pressure warning lamp in combination meter.
BUZZER [Off/On]	Indicates condition of buzzer in combination meter.

ACTIVE TEST

Test Item	Description
HORN	This test is able to check horn operation [On].
FLASHER	This test is able to check turn signal lamp operation [Off/LH/RH].
ID REGIST WARNING	This test is able to check ID registration warning chime operation [On/Off].
WARNING LAMP	This test is able to check tire pressure warning lamp operation [On/Off].

WORK SUPPORT

Support Item	Description
ID READ	The registered ID number is displayed.
ID REGIST	Refer to WT-22, "Description".

System

Tire pressure monitoring system TIRE PRESSURE MONITORING SYSTEM : System Diagram TIRE PRESSURE MONITORING SYSTEM : System Description The BCM has pressure judgment and trouble diagnosis fun ...

Diagnosis system (BCM) (without intelligent key system)

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:

Dlc 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 data link connector for damage, bend and loose connection (connector side and harness side). Is the inspection resul ...

Turn signal lamp circuit
Description The bcm monitors inputs from the combination switch to determine when to activate the turn signals. The bcm outputs voltage direction to the left and right turn signals during turn signal operation or both during hazard warning operation. The bcm sends a turn signal indicator req ...

Ambient sensor signal circuit
Description It detects outside air temperature and converts it into a resistance value which is then input into the combination meter. Diagnosis Procedure Regarding wiring diagram information, refer to mwi-28, "wiring diagram". 1.Check ambient sensor signal circuit Turn igniti ...