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Home >> Nissan-Datsun >> 2023 >> Altima S >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Security Control System >> Basic Inspection >> Additional Service When Replacing Control Unit >> Additional Service When Replacing ECM >> Work Procedure
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Work Procedure

Description 

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: SYMBOL
  • 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.

Work Procedure 

  1. PERFORM ECM RECOMMUNICATING FUNCTION 
      1. Install ECM.
      2. Contact backside of registered Intelligent Key* to push-button ignition switch, then place ignition switch to ON.

        *: To perform this step, use the key that is used before performing ECM replacement.

      3. Maintain ignition switch in the ON position for at least 5 seconds.
      4. Ignition switch OFF.
      5. Check that the engine starts.

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  2. PERFORM ADDITIONAL SERVICE WHEN REPLACING ECM 
    1. Refer to Work Procedure .

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    Inspection End.