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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Security Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B2555: Stop Lamp >> Diagnosis Procedure (Without LED rear combination lamps)

Diagnosis Procedure (Without LED rear combination lamps)

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SOURCE (STOP LAMP SWITCH) 
    1. Turn ignition switch OFF.
    2. Disconnect stop lamp switch connector.
    3. Check voltage between stop lamp switch and ground.

      Stop lamp switch

      Ground

      Voltage

      (Approx.)

      Connector

      Terminal

      E38

      1

      Battery voltage

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Check the following:

    • Harness for short or open between fuse block (J/B) and stop lamp switch
    • 10A fuse (No. 10, located in fuse block [J/B])
  2. CHECK STOP LAMP SWITCH 

    Check stop lamp switch. Refer to Component Inspection (Stop Lamp Switch) .

    Is the inspection result normal?

    YES

    GO TO 3 .

    NO

    Replace stop lamp switch. Refer to Exploded View .

  3. CHECK GROUND CIRCUIT (STOP LAMP RELAY) 
    1. Remove the stop lamp relay.
    2. Check continuity between stop lamp relay connector and ground.

      Stop lamp relay

      Ground

      Continuity

      Connector

      Terminal

      E12

      1

      Yes

    Is the inspection result normal?

    YES

    GO TO 4 .

    NO

    Repair or replace damaged parts.

  4. CHECK STOP LAMP Relay 

    Check stop lamp relay. Refer to Component Inspection (Stop Lamp Relay) .

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    Replace stop lamp relay.

  5. CHECK HARNESS BETWEEN STOP LAMP RELAY AND BCM 

    Check continuity between stop lamp relay and BCM.

    BCM

    Stop lamp relay

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    M18

    27

    E12

    3

    Yes

    Check continuity between stop lamp relay connector and ground.

    Stop lamp relay

    Ground

    Continuity

    Connector

    Terminal

    E12

    3

    No

    Is the inspection result normal?

    YES

    GO TO 6 .

    NO

    Repair or replace damaged parts.

  6. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND STOP LAMP RELAY 

    Check continuity between stop lamp relay and stop lamp switch.

    Stop lamp switch

    Stop lamp relay

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    E38

    2

    E12

    2

    Yes

    Check continuity between stop lamp relay connector and ground.

    Stop lamp relay

    Ground

    Continuity

    Connector

    Terminal

    E12

    2

    No

    Is the inspection result normal?

    YES

    GO TO 7 .

    NO

    Repair or replace damaged parts.

  7. CHECK POWER SOURCE (STOP LAMP RELAY) 

    Check voltage between stop lamp relay and ground.

    Stop lamp relay

    Ground

    Voltage

    (Approx.)

    Connector

    Terminal (+)

    E12

    5

    Battery voltage

    Is the inspection result normal?

    YES

    GO TO 8 .

    NO

    Repair or replace damaged parts.

  8. CONNECTOR INSPECTION 

    Check BCM connectors and terminals for deformation, disconnection, looseness or damage.

    Is the inspection result normal?

    YES

    GO TO 9 .

    NO

    Repair or replace as necessary.

  9. REPLACE BCM 
    1. Replace BCM. Refer to Removal and Installation .
    2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT. Refer to the CONSULT Immobilizer mode and follow the on-screen instructions.

    Inspection End.