Nissan Sentra manuals

Nissan Sentra Service Manual: On board diagnostic (OBD) system

Nissan Sentra Service Manual / Engine / Engine control system / Operation / On board diagnostic (OBD) system

Diagnosis Description

This system is an on board diagnostic system that records exhaust emission-related diagnostic information and detects a sensors/actuator-related malfunction. A malfunction is indicated by the malfunction indicator lamp (MIL) and stored in ECU memory as a DTC. The diagnostic information can be obtained with the diagnostic tool (GST: Generic Scan Tool).

GST (Generic Scan Tool)

When GST is connected with a data link connector equipped on the vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various kinds of diagnostic tests. Refer to GI-47, "Description".

NOTE:

Service $0A is not applied for regions where it is not mandated.

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Diagnosis system (ECM)
Diagnosis description : 1st trip detection logic and two trip detection logic When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the ECM ...

Other materials:

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Ecu diagnosis information
Bcm (body control module) List of ecu reference Moonroof motor assembly Reference value Terminal layout Physical values ...

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