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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 202 (Automatic Transmission (DTC/Circuit Diagnosis) (Re6R01A)) >> DTC/Circuit Diagnosis >> DTC P2803: Transmission Range Sensor B >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR 

    Check the metal deposition, damage, and corrosion of connectors (F212 and E73 and E74).

    Is the inspection result normal ?

    YES

    GO TO 2 .

    NO

    Repair or replace malfunctioning parts.

  2. CHECK TRANSMISSION RANGE SWITCH ALIGNMENT 

    Is the transmission range switch installed correctly?

    YES

    GO TO 3 .

    NO

    Repair or replace malfunctioning parts.

  3. CHECK CONTROL CABLE BETWEEN SELECTOR LEVER AND TRANSMISSION RANGE SWITCH 

    Is the control cable installed correctly?

    YES

    GO TO 4 .

    NO

    Repair or replace malfunctioning parts.

  4. DETECT MALFUNCTIONING ITEMS 

    Check following items:

    • Harness open circuit or short circuit between transmission range switch harness connector and accessory relay-2.
    • Harness open circuit or short circuit between accessory relay-2 and fuse block (J/B).
    • 5A fuse (No. 25)
    • Accessory relay
    • Battery

    Is the check result normal?

    YES

    GO TO 5 .

    NO

    Repair or replace malfunctioning parts.

  5. CHECK POWER CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect transmission range switch connector.
    3. Turn ignition switch ON.
    4. Check voltage between transmission range switch harness connector terminal and ground.

      Transmission range switch

      -

      Voltage

      Connector

      Terminal

      F212

      3

      Ground

      Battery voltage

    Is the check result normal?

    YES

    GO TO 6 .

    NO

    GO TO 4 .

  6. CHECK TCM INPUT SIGNALS 
    1. Turn ignition switch OFF.
    2. Connect transmission range switch connector.
    3. Disconnect TCM connector.
    4. Turn ignition switch ON.
    5. Shift the selector lever from P to D and check voltage between TCM harness connector terminal and ground.

      TCM

      -

      Condition

      Voltage

      Connector

      Terminal

      E74

      21

      Ground

      Selector lever: P

      Battery voltage

      Selector lever: Between P and R

      Battery voltage

      Selector lever: R

      0 V

      Selector lever: Between R and N

      Battery voltage

      Selector lever: N

      Battery voltage

      Selector lever: Between N and D

      Battery voltage

      Selector lever: D

      0 V

    Is the check result normal?

    YES

    INSPECTION END

    NO

    GO TO 7 .

  7. CHECK CIRCUIT BETWEEN TCM AND TRANSMISSION RANGE SWITCH 

    Check continuity between TCM harness connector terminals.

    TCM

    Continuity

    Connector

    Terminal

    E74

    12

    Other than the 12

    Not existed

    3

    Other than the 3

    10

    Other than the 10

    21

    Other than the 21

    Continuity should not be existed.

    Is the check result normal?

    YES

    GO TO 5 .

    NO

    Repair or replace malfunctioning parts.