Nissan Murano: Security Control System :: Dtc/circuit Diagnosis / B260f Eng State Sig Lost

Nissan Murano (Z52) 2015-2024 Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Security Control System :: Dtc/circuit Diagnosis / B260f Eng State Sig Lost

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B260F

ENG STATE SIG LOST

(Engine state signal lost)
Diagnosis condition When ignition switch is ON.
Signal (terminal)
Threshold BCM has not yet received the engine status signal from ECM when ignition switch is in the ON position.
Diagnosis delay time

POSSIBLE CAUSE

  • Harness or connectors

    (The CAN communication line is open or shorted.)

  • ECM

FAIL-SAFE

Inhibit engine cranking

DTC Confirmation Procedure

CHECK DTC PRIORITY

If DTC B260F is displayed with DTC U1000 or U1010, first perform the trouble diagnosis for DTC U1000 or U1010.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. U1000: Refer to DTC Description. U1010: Refer to DTC Description.

NO>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON and wait 2 seconds or more.

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

  3. Check DTC.

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK DTC PRIORITY

If DTC B260F is displayed with DTC U1000 or U1010, first perform the trouble diagnosis for DTC U1000 or U1010.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable. U1000: Refer to DTC Description. U1010: Refer to DTC Description.

NO>>

GO TO 2.

INSPECTION START

  1. Ignition switch ON.

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

  3. Touch “ERASE”.

  4. Perform DTC CONFIRMATION PROCEDURE for DTC B260F. Refer to DTC Confirmation Procedure.

Is DTC detected?

YES>>

GO TO 3.

NO>>

Inspection End.

REPLACE ECM

Replace ECM. Refer Removal and Installation.

>>

Inspection End.

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