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Home >> Nissan-Datsun >> 2023 >> Maxima SR >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Removal And Installation >> ECM >> Removal and Installation

Removal and Installation

CAUTION:

When replacing the ECM, a new ECM must be used. The functions controlled by the ECM do not operate properly if a ECM from another vehicle is used.

REMOVAL 

  1. Remove front air duct. Refer to Removal and Installation .
  2. Remove battery. Refer to Removal and Installation (Battery) .
  3. Disconnect the harness connectors from the ECM. Refer to Harness Connector .
  4. Remove ECM nuts (A), and then remove ECM (1).
    GNSDB55744Courtesy of NISSAN

INSTALLATION 

Installation is in the reverse order of removal.

CAUTION:

Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to Description .