Self-Diagnostic Result Mode
WARNING: This page is about a different car, the 2013 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to "DTC INDEX ".)
How to Read DTC and 1st Trip DTC
DTCs and 1st trip DTCs related to the malfunction are displayed in "self-diag results".
- When ECM detects a 1st trip DTC, 1t" is displayed for "TIME".
- When ECM has detected a current DTC, "0" is displayed for "TIME".
- If "TIME" is neither "0" nor "1t", the DTC occurred in the past and ECM shows the number of times the vehicle has been driven since the last detection of the DTC.
How to Erase DTC and 1st Trip DTC
NOTE:
- Erase DTC in TCM. Refer to "DTC INDEX ".
- Select "ENGINE" with CONSULT.
- Select "SELF-DIAG RESULTS".
- Touch "ERASE". (DTC in ECM will be erased.)FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
Freeze frame data item(1) Description DIAG TROUBLE CODE
[PXXXX]- The engine control component part/control system has a trouble code, that is displayed as PXXXX. (Refer to "DTC INDEX ".)
FUEL SYS-B1 - "Fuel injection system status" at the moment a malfunction is detected is displayed.
- One of in the following made is displayed.
Mode2: Open loop due to detected system malfunction
Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control
Mode5: Open loop - has not yet satisfied condition to go to closed loop
FUEL SYS-B2 CAL/LD VALUE [%] - The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [°C] or [°F] - The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%] - "Long-term fuel trim" at the moment a malfunction is detected is displayed.
- The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule than short-term fuel trim.
L-FUEL TRM-B2 [%] S-FUEL TRM-B1 [%] - "Short-term fuel trim" at the moment a malfunction is detected is displayed.
- The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel schedule.
S-FUEL TRM-B2 [%] ENGINE SPEED [rpm] - The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED [km/h] or [mph] - The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH-P/S [%] - The throttle valve opening angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL [msec] - The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE [°C] or [°F] - The intake air temperature at the moment a malfunction is detected is displayed.
INT MANI PRES [kPa] - Always a certain value is displayed.
- These items are displayed but are not applicable to this model.
COMBUST CONDITION (1) The items are the same as those of 1st trip freeze frame data.