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:

P1554 Battery current sensor
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P1554 BAT CURRENT SENSOR (Battery current sensor) The output voltage of the battery current sensor is lower than the specified value ...

P0448 EVAP Canister vent control valve
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P0448 VENT CONTROL VALVE (Evaporative emission system vent control circuit shorted) EVAP canister vent control valve remains clos ...

Component parts
Component Parts Location Driver air bag module Front passenger air bag off indicator Front passenger air bag module Front LH side air bag module (RH similar) LH side curtain air bag module (view with headliner removed) (RH similar) Front LH seatbelt pre-tensioner (view wit ...