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Home >> Infiniti >> 2012 >> FX35 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Self-Diagnostic Result Mode >> How to Erase DTC and 1st Trip DTC
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How to Erase DTC and 1st Trip DTC

NOTE:
  • If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
  • If the DTC is not for A/T related items (see "DTC INDEX "), skip step 1.
  1. Erase DTC in TCM. Refer to "CONSULT FUNCTION (TRANSMISSION) ".
  2. Select "ENGINE" with CONSULT.
  3. Select "SELF-DIAG RESULTS".
  4. Touch "ERASE". (DTC in ECM will be erased.)
    FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA LIST

    Freeze frame data item(1) Description
    DTC
    • The engine control component part/control system has a trouble code that is displayed as DTC. (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
    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]
    • 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.