Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2021 >> Q60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (5 Of 7) >> Engine (ECM) >> DTC P1574: ASCD Vehicle Speed Sensor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK DTC PRIORITY 

    If DTC P1574 is displayed with DTC UXXXX, P0500, P0605 or P0607, first perform the confirmation procedure (trouble diagnosis) for DTC UXXXX, P0500, P0605 or P0607.

    Is DTC UXXXX, P0500, P0605 or P0607 detected?

    YES

    Perform diagnosis of applicable.

    NO

    GO TO 2.

  2. CHECK DTC WITH TCM 

    Check DTC with TCM. Refer to Diagnosis Description .

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Perform trouble shooting relevant to DTC indicated.

  3. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 

    Check DTC with ABS actuator and electric unit (control unit). Refer to Diagnosis Description .

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace.

  4. CHECK DTC WITH COMBINATION METER 

    Check DTC with combination meter. Refer to Diagnosis Description .

    INSPECTION END