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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Control System (DTC/Circuit Diagnosis) (3 Of 5)) >> DTC/Circuit Diagnosis >> DTC P0850: PNP Switch >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECTION START 

    Will CONSULT be used?

    Will CONSULT be used?

    YES

    GO TO 2.

    NO

    GO TO 5.

  2. PRECONDITIONING 

    If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

    1. Turn ignition switch OFF and wait at least 10 seconds.
    2. Turn ignition switch ON.
    3. Turn ignition switch OFF and wait at least 10 seconds.

    GO TO 3.

  3. CHECK PNP SIGNAL 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Select "P/N POSI SW" in "DATA MONITOR" mode with CONSULT. Then check the "P/N POSI SW" signal under the following conditions.

      Position (Selector lever)

      Known-good signal

      N or P position

      ON

      Except above position

      OFF

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Proceed to Diagnosis Procedure .

  4. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Select "DATA MONITOR" mode with CONSULT.
    2. Start engine and warm it up to normal operating temperature.
    3. Maintain the following conditions for at least 50 consecutive seconds.
      CAUTION: Always drive vehicle at a safe speed.

      ENG SPEED

      1, 100 - 6, 375 rpm

      COOLANT TEMP/S

      More than 65°C (149°F)

      B/FUEL SCHDL

      2.2 - 31.8 msec

      VHCL SPEED SE

      More than 64 km/h (40 mph)

      Selector lever

      Suitable position

    4. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

    INSPECTION END

  5. PERFORM COMPONENT FUNCTION CHECK 
    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminals.

      ECM

      Condition

      Voltage

      +

      -

      Connector

      Terminal

      Connector

      Terminal

      F14

      83

      E10

      152

      Selector lever position

      P or N

      Approx. 0 V

      Except above

      Battery voltage

    Is the inspection result normal?

    YES

    To check malfunction symptom before repair: Refer to Intermittent Incident .

    YES

    Confirmation after repair: INSPECTION END

    NO

    Proceed to Diagnosis Procedure .