Nissan Murano: Security Control System :: Dtc/circuit Diagnosis / P1611 Id Discord, Immu-Ecm

Nissan Murano (Z52) 2015-2024 Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Security Control System :: Dtc/circuit Diagnosis / P1611 Id Discord, Immu-Ecm

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
P1611

ID DISCORD, IMMU-ECM

(Identification discord immobilizer-engine control unit)
Diagnosis condition When ignition switch ON.
Signal (terminal)
Threshold The ID verification results between BCM and ECM are not good
Diagnosis delay time

POSSIBLE CAUSE

  • BCM

  • Harness or connectors

    (The CAN communication line is open or shorted.)

  • ECM

FAIL-SAFE

DTC Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

  2. Select “Self Diagnostic Result” mode of “ENGINE”.

  3. Check DTC.

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

PERFORM INITIALIZATION

Perform initialization of BCM and reregistration of all Intelligent Keys. Refer to Work Procedure.

Can the system be initialized and can the engine be started with reregistered Intelligent Key?

YES>>

Inspection End.

NO>>

GO TO 2.

CHECK SELF DIAGNOSTIC RESULT

CONSULT

  1. Select “Self Diagnostic Result” mode of “ENGINE”.

  2. Erase DTC.

  3. Perform DTC CONFIRMATION PROCEDURE for DTC P1611. Refer to DTC Confirmation Procedure.

Is DTC detected?

YES>>

GO TO 3.

NO>>

Inspection End.

REPLACE BCM

  1. Replace BCM. Refer to Removal and Installation.

  2. Perform initialization of BCM and registration of all Intelligent Keys. Refer to Work Procedure.

Can the system be initialized and can the engine be started with registered Intelligent Key?

YES>>

Inspection End.

NO>>

GO TO 4.

REPLACE ECM

  1. Replace ECM. Refer to Removal and Installation.

  2. Perform “ADDITIONAL SERVICE WHEN REPLACING ECM”. Refer to Work Procedure.

>>

Inspection End.

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