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Home >> Nissan-Datsun >> 2021 >> Sentra S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1 Of 2) >> Basic Inspection >> Additional Service When Replacing ECM >> Work Procedure >> Description
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Work Procedure: Description

When replacing ECM, the following procedure must be performed.

CAUTION: When replacing the ECM, always replace it with a new one.

The functions controlled by the ECM does not operate properly in case of reuse of the ECM from another vehicle.

PROGRAMMING OPERATION 

NOTE: After replacing with a blank ECM, programming is required to write ECM information. Be sure to follow the procedure to perform the programming.