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:

Symptom diagnosis
Push-button ignition switch does not operate Description Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and check each symptom. Note: The engine start function, door lock function, power distribution system, and nats-ivis/nvis ...

Power supply and ground circuit
Av control unit Av control unit : diagnosis procedure Regarding wiring diagram information, refer to av-331, "wiring diagram". 1.Check fuse Check that the following fuses are not blown. Are the fuses blown? Yes >> replace the blown fuse after repairing the affected circuit. ...

Rearview mirror (if so equipped)
The night position 1 reduces glare from the headlights of vehicles behind you at night. Use the day position 2 when driving in daylight hours. WARNINGUse the night position only when necessary, because it reduces rear view clarity. ...

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