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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 401 (Door & Lock (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B261B: Remote Engine Start >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ECM IGNITION, POWER AND GROUND CIRCUITS 

    Check ECM ignition power and ground circuits. Refer to Diagnosis Procedure (VQ35DD).

    Is the inspection result normal?

    YES

    Replace ECM. Refer to Removal and Installation (VQ35DD). GO TO 2.

    NO

    Repair or replace harness or connectors.

  2. INSPECTION 
    1. Turn ignition switch ON.
    2. Select "Self-diagnostic result" mode with CONSULT.
    3. Touch "ERASE".
    4. Perform vehicle remote start operation.

    Does DTC B261B return?

    YES

    Replace BCM. Refer to Removal and Installation .

    NO

    Inspection End.

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