Nissan Versa (N17): B2193 Chain of ECM-IMMU

Nissan Versa 2nd generation (N17) Service Manual / Body exterior, doors, roof & vehicle security / Security control system (SEC) / B2193 Chain of ECM-IMMU

DTC Logic

DTC DETECTION LOGIC

NOTE:

  • If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to BCS "DTC Logic".
  • If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to BCS "DTC Logic".   

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.

Is DTC detected?

YES >> Go to SEC "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

1.REPLACE BCM

1. Replace BCM. Refer to BCS "Removal and Installation".

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.

Does the engine start?

YES >> Inspection End.

NO >> GO TO 2.

2.REPLACE ECM

1. Replace ECM.

Refer to EC "Removal and Installation".

2. Perform "ADDITIONAL SERVICE WHEN REPLACING ECM".

Refer to EC "Work Procedure".

>> Inspection End

Other materials:

Engine control system
ENGINE CONTROL SYSTEM : System Diagram NOTE: Battery current sensor is used in CVT models. ENGINE CONTROL SYSTEM : System Description ECM performs various controls such as fuel injection control and ignition timing control. ENGINE CONTROL SYSTEM : Fail Safe NON DTC RELATED ITEM ...

Consult function
APPLICATION ITEMS Diagnostic test mode Function Work Support This mode enables a technician to adjust some devices faster and more accurately. Self Diagnostic Results Retrieve DTC from ECU and display diagnostic items. Data Monitor Monitor the input ...

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