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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 523 (Automatic Transmission (Re7R01B) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC P0734: 4GR Incorrect Ratio >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. DETECT MALFUNCTIONING ITEM 

    Disassemble the A/T assembly to check component parts. Refer to Disassembly .

    NOTE: Check the component parts, referring to "Possible cause" in "DTC DETECTION LOGIC". Refer to DTC Description .

    Is the inspection result normal?

    YES

    Replace the control valve & TCM. Refer to Exploded View .

    NO

    Repair or replace damaged parts.

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