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Home >> Infiniti >> 2009 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> Function Diagnosis >> On Board Diagnostic (OBD) System >> CONSULT-III Function (ENGINE) >> Self-Diag Results Mode

Self-Diag Results Mode

Self Diagnostic Item

Regarding items of DTC and 1st trip DTC, refer to "DTC INDEX ".

Freeze Frame Data and 1st Trip Freeze Frame Data

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, it 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 mode in the following 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 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 not efficient JA60 models.
COMBUST CONDITION
(1) The item is the same as that of 1st trip freeze frame data.