Nissan Sentra manuals

Nissan Sentra Service Manual: Diagnosis description : permanent diagnostic trouble code (permanent DTC)

Nissan Sentra Service Manual / Engine / Engine control system / Operation / Diagnosis description : permanent diagnostic trouble code (permanent DTC)

Permanent DTC is defined in SAE J1979/ISO 15031-5 Service $0A.

ECM stores a DTC issuing a command of turning on MIL as a permanent DTC and keeps storing the DTC as a permanent DTC until ECM judges that there is no presence of malfunction.

Permanent DTCs cannot be erased by using the erase function of CONSULT or Generic Scan Tool (GST) and by disconnecting the battery to shut off power to ECM. This prevents a vehicle from passing the in-use inspection without repairing a malfunctioning part.

When not passing the in-use inspection due to more than one permanent DTC, permanent DTCs should be erased, referring to this manual.

NOTE:

PERMANENT DTC SET TIMING

The setting timing of permanent DTC is stored in ECM with the lighting of MIL when a DTC is confirmed.

Diagnosis description : system readiness test (SRT) code
System Readiness Test (SRT) code is specified in Service $01 of SAE J1979/ISO 15031-5. As part of an enhanced emissions test for Inspection & Maintenance (I/M), certain states require the s ...

Diagnosis description : malfunction indicator lamp (MIL)
When emission-related ECU detects a malfunction in the emission control systems components and/or the powertrain control components (which affect vehicle emissions), it turns on/blinks MIL to infor ...

Other materials:

P0222, P0223 TP Sensor
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0222 or P0223 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to EC-353, "DTC Logic". DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible caus ...

Rear disc brake
Brake Burnishing CAUTION: Burnish contact surfaces between brake pads and disc rotor according to the following procedure after refinishing the disc rotor, replacing brake pads or if a soft pedal occurs at very low mileage. Be careful of vehicle speed. Brakes do not operate firmly/sec ...

Door mirror remote control switch
Removal and Installation Removal Remove the instrument finisher D. Refer to IP-14, "Exploded View". Using suitable tool (a) release the pawls and remove the door mirror remote control switch (2) from the switch bracket (1). Pawl Installation Installation is in the rev ...

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