Nissan Maxima Service and Repair Manual: P1148, P1168 closed loop control

DTC Logic

DTC DETECTION LOGIC

NOTE: DTC P1148 or P1168 is displayed with another DTC for A/F sensor 1.

Perform the trouble diagnosis for the corresponding DTC.

Nissan Maxima. DTC DETECTION LOGIC

    P1078, P1084 EVT control position sensor
    Description Exhaust valve timing control position sensor detects the concave groove of the exhaust camshaft rear end. This sensor signal is used for sensing a position of the exhaust camshaf ...

    P1211 TCS control unit
    Description The malfunction information related to TCS is transferred via the CAN communication line from "ABS actuator and electric unit (control unit)" to ECM. Be sure to erase the malfuncti ...

    Other materials:

    Magnet clutch
    Description SYSTEM DESCRIPTION A/C auto amp. controls A/C compressor operation by ambient temperature and signal from ECM. Low Temperature Protection Control A/C auto amp. will turn the A/C compressor ON or OFF as determined by a signal detected by ambient sensor. When ambient temper ...

    Shift position indicator circuit
    Description  TCM sends position indicator signals to combination meter via CAN communication line.  The selector lever position is indicated on the shift position indicator. Component Function Check 1.CHECK SHIFT POSITION INDICATOR CAUTION: Always drive vehic ...

    Both side headlamps (LO) are not turned on
    Description The headlamps (both sides) do not turn ON in any lighting switch setting. Diagnosis Procedure 1.CHECK COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) Check the combination switch (lighting and turn signal switch 2.CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT CONSULT DATA MONITOR ...

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