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:

    Diagnosis system (HVAC)
    CONSULT Function CONSULT can display each diagnosis item using the diagnosis test modes as shown. CONSULT application items SELF-DIAGNOSTIC RESULT Display Item List *: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, ...

    Trunk lid opener switch
    Removal and Installation REMOVAL Remove the instrument lower panel LH. Refer to IP-19, "Removal and Installation". Release pawls (A), and press trunk lid opener switch (1) front side to remove from instrument lower panel LH. INSTALLATION Installation is in the reverse ...

    P1778 step motor
    Description  The step motor changes the step by turning 4 coils ON/OFF according to the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled.  This diagnosis item is detected when the electrical syste ...

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