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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics (Qr25DE) >> Self-Diagnostic System >> On-Board Diagnostics >> Notes
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On-Board Diagnostics: Notes

NOTE: Electronic Concentrated Control System (ECCS) control module is referred to as Engine Control Module (ECM).

ECM detects malfunctions related to engine sensors or actuators. OBD-II monitors emission related components and can store Diagnostic Trouble Codes (DTCs), 1st trip DTCs, freeze-frame data, 1st trip freeze-frame data and System Readiness Test (SRT) information. Using a scan tool, this data and DTC information can be retrieved to assist in diagnosing problems.

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