LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) (2 Of 2) >> Shift (Electric Shift Control Module) >> P07EC-00 T/M Range Multi-Function Select >> DTC Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Diagnosis Procedure

  1. CHECK ELECTRIC SHIFT SENSOR INPUT SIGNAL 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Select "Data Monitor" in "SHIFT".
    3. Select "SHIFT SENSOR 1", "SHIFT SENSOR 2", "SHIFT SENSOR 3", "SHIFT SENSOR 4", "SHIFT SENSOR 5", "SHIFT SENSOR 6", "Shift sensor 7", and "Shift sensor 8".
    4. Operate the selector lever to identify a electric shift sensor of which value does not change.
      Monitor item Condition Value / Status
      SHIFT SENSOR 1 Selector lever is held in R position On
      Other than the above Off
      SHIFT SENSOR 2 Selector lever is held in R and Nr positions On
      Other than the above Off
      SHIFT SENSOR 3 Selector lever is held in H (Home) and Nr positions On
      Other than the above Off
      SHIFT SENSOR 4 Selector lever is held in H (Home) and Nr positions On
      Other than the above Off
      SHIFT SENSOR 5 Selector lever is held in H (Home) and Nd positions On
      Other than the above Off
      SHIFT SENSOR 6 Selector lever is held in H (Home) and Nd positions On
      Other than the above Off
      Shift sensor 7 Selector lever is held in D/M and Nd positions On
      Other than the above Off
      Shift sensor 8 Selector lever is held in D/M position On
      Other than the above Off

    SYMBOL Without CONSULT

    1. Turn ignition switch ON.
    2. Operate the selector lever.
    3. Check the voltage between the electric shift control module vehicle side harness connector terminal and ground.
      Electric shift sensor + - Condition Voltage(Approx.)
      Electric shift control module
      Connector terminal
      1 M241 34 Ground Selector lever is held in R position 0 V
      Other than the above 5 V
      2 35 Selector lever is held in R and Nr positions 0 V
      Other than the above 5 V
      3 36 Selector lever is held in H (Home) and Nr positions 0 V
      Other than the above 5 V
      4 37 Selector lever is held in H (Home) and Nr positions 0 V
      Other than the above 5 V
      5 44 Selector lever is held in H (Home) and Nd positions 0 V
      Other than the above 5 V
      6 45 Selector lever is held in H (Home) and Nd positions 0 V
      Other than the above 5 V
      7 39 Selector lever is held in D/M and Nd positions 0 V
      Other than the above 5 V
      8 40 Selector lever is held in D/M position 0 V
      Other than the above 5 V

    Is the inspection results normal?

    >>

    INSPECTION END

    >>

    GO TO 2.

  2. CHECK HARNESS BETWEEN ELECTRIC SHIFT CONTROL MODULE AND ELECTRIC SHIFT SELECTOR 
    1. Turn ignition switch OFF.
    2. Disconnect the electric shift control module connector.
    3. Disconnect the electric shift selector connector.
    4. Check the continuity between the electric shift control module vehicle side harness connector terminal and the electric shift selector vehicle side harness connector terminal.
      Electric shift sensor Electric shift control module Electric shift selector Continuity
      Connector terminal Connector terminal
      1 M241 34 M251 2 Existed
      3 36 3
      5 44 4
      7 39 5
      2 35 14
      4 37 15
      6 45 16
      8 40 17
    5. Check the continuity between the electric shift control module vehicle side harness connector terminals and ground.
      Electric shift sensor Electric shift control module Ground Continuity
      Connector terminal
      1 M241 34 Ground Not existed
      3 36
      5 44
      7 39
      2 35
      4 37
      6 45
      8 40

    Is the inspection result normal?

    >>

    Replace the electric shift selector. Refer to Removal and Installation .

    >>

    Repair or replace damaged parts.