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Home >> Nissan-Datsun >> 2021 >> Altima SL, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Security Control System) >> Basic Inspection >> Security Control System >> Additional Service When Replacing ECM >> Work Procedure >> Description
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Work Procedure: Description

WARNING: This page is about a different car, the 2020 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Performing the following procedure can automatically activate recommunication of ECM and BCM, but only when the ECM is replaced with a new one*.

*: New one means an ECM that has never been energized on-board.

(In this step, initialization procedure by CONSULT is not necessary)

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.
NOTE:
  • If multiple keys are attached to the key holder, separate them before beginning work.
  • Distinguish keys with unregistered key IDs from those with registered IDs.