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Home >> Nissan-Datsun >> 2017 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) >> System Description >> Diagnosis System (ECM) >> Consult Function >> Self Diagnostic Result Mode >> Freeze Frame Data And 1ST Trip Freeze Frame Data
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Freeze Frame Data And 1ST Trip Freeze Frame Data

Freeze frame data item* 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 the following mode 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
COMBUST CONDITION These items are displayed but are not applicable to this model.
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.
INT MANI PRES [kPa] These items are displayed but are not applicable to this model.
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.

*: The items are the same as those of 1st trip freeze frame data.

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