Nissan Sentra manuals

Nissan Sentra Service Manual: Ecu diagnosis information

Bcm

Reference value

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.

VALUES ON THE DIAGNOSIS TOOL



Terminal layout


Terminal layout

Physical values


Physical values









Fail-safe


Fail-safe

Fail-safe control by dtc

Bcm performs fail-safe control when any dtc are detected.

Fail-safe control of combination switch reading function caused by low


Fail-safe control of combination switch reading function caused by low power supply voltage

If voltage of battery power supply lower, BCM maintains combination switch reading to the status when input voltage is less than approximately 9 V.

Note:

When voltage of battery power supply is approximately 9 v or more, combination switch reading function returns to normal operation.

Dtc inspection priority chart

If some dtcs are displayed at the same time, perform inspections one by one based on the following priority chart.

Dtc index


Dtc index

Note:

Details of time display


Wiring diagram


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 ...

Wiring diagram
BCM Wiring diagram ...

Other materials:

P0452 EVAP Control system pressure sensor
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P0452 EVAP SYS PRES SEN (Evaporative emission system pressure sensor/switch low) An excessively low voltage from the sensor is se ...

Precaution for supplemental restraint system (SRS) "air bag" and "seat belt pre-tensioner"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. Information necessary to service the system ...

Vehicle recovery (freeing a stuck vehicle)
Front (if so equipped) Do not use the hook to tow the vehicle. Remove the cover bumper bracket using a flat screwdriver or any flat tool. To protect the bumper body, place a piece of cloth between the tool and the vehicle. The tool used should be inserted by the lower portion of t ...

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