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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P1608: VVEL Sensor Power Supply >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-I 
    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.

      VVEL control shaft position sensor

      Ground

      Voltage

      Bank

      Connector

      Terminal

      1

      F83

      3

      Ground

      Approx. 5V

      6

      2

      F86

      3

      6

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 2.

  2. CHECK VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-II 
    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.

      VVEL control shaft position sensor

      VVEL control module

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      1

      F83

      3

      F84

      7

      Existed

      6

      20

      2

      F86

      3

      9

      6

      22

    4. Also check harness for short to ground and power.

    Is the inspection result normal?

    YES

    Replace VVEL control module. Refer to Removal and Installation .

    NO

    GO TO 3.

  3. 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.

  4. REPLACE VVEL LADDER ASSEMBLY 

    Replace VVEL ladder assembly. Refer to Removal and Installation .

    INSPECTION END