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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 11 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (5 OF 9))DTC/CIRCUIT DIAGNOSISDTC P1089, P1092: VVEL CONTROL SHAFT POSITION SENSORDIAGNOSIS PROCEDURE
2019 Infiniti Q70 3.7 Luxe, AWD

Diagnosis Procedure

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Diagnosis Procedure
WARNING: This page is about a different variant/trim than selected.
  1. VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT 
    1. Disconnect VVEL control shaft position sensor harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between VVEL control shaft position sensor harness connector and ground.

      DTC No.

      VVEL control shaft position sensor

      Ground

      Voltage (V)

      Bank

      Connector

      Terminal

      P1089

      1

      F72

      3

      Ground

      Approx. 5

      6

      P1092

      2

      F70

      3

      6

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 2.

  2. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness for open or short between VVEL control shaft position sensor and VVEL control module
    • Loose or poor connection for each connector and harness

    Repair open circuit, short to ground or short to power in harness or connectors.

  3. CHECK VVEL CONTROL SHAFT POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect VVEL control module harness connector.
    3. Check the continuity between VVEL control shaft position sensor harness connector and VVEL control module harness connector.

      DTC No.

      VVEL control shaft position sensor

      VVEL control module

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P1089

      1

      F72

      2

      E15

      6

      Existed

      5

      19

      P1092

      2

      F70

      2

      4

      5

      17
    4. Also check harness for short to power.

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    GO TO 4.

  4. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness for open or short between VVEL control shaft position sensor and VVEL control module
    • Loose or poor connection for each connector and harness

    Repair open circuit, short to ground or short to power in harness or connectors.

  5. VVEL CONTROL SHAFT POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Check the continuity between VVEL control shaft position sensor harness connector and VVEL control module harness connector.

      DTC No.

      VVEL control shaft position sensor

      VVEL control module

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P1089

      1

      F72

      1

      E15

      3

      Existed

      4

      16

      P1092

      2

      F70

      1

      5

      4

      18
    2. Also check harness for short to ground and power.

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    GO TO 6.

  6. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness for open or short between VVEL control shaft position sensor and VVEL control module
    • Loose or poor connection for each connector and harness

    Repair open circuit, short to ground or short to power in harness or connectors.

  7. CHECK INTERMITTENT INCIDENT 

    Refer to Intermittent Incident .

    Is the inspection result normal?

    YES

    GO TO 8.

    NO

    Repair or replace.

  8. REPLACE VVEL CONTROL MODULE 

    Replace VVEL control module. Refer to VVEL CONTROL MODULE

    GO TO 9.

  9. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Turn ignition switch ON.
    2. Erase DTC.
    3. Perform DTC Confirmation Procedure.

      See DTC Logic .

    Is the DTC P1089 or P1092 displayed again?

    YES

    GO TO 10.

    NO

    INSPECTION END

  10. REPLACE VVEL ACTUATOR SUB ASSEMBLY 

    Replace VVEL actuator sub assembly. Refer to Exploded View .

    INSPECTION END

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.