Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / B2002-43 Intelligent Key Unit

Nissan Sentra B18 (2020-2025) Service Manual: B2002-43 Intelligent Key Unit

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B2002–43	Intelligent Key unit (Intelligent Key unit)	Diagnosis condition	Ignition switch ON
		Signal (terminal)	—
		Threshold	Intelligent Key unit is internal malfunctioning
		Diagnosis delay time	—

POSSIBLE CAUSE

Intelligent Key unit

FAIL-SAFE

—

Confirmation Procedure

PERFORM DTC CONFIRMATION PROCEDURE
1. CONSULT
  1. Erase DTC.
  2. Ignition switch OFF.
  3. Ignition switch ON.
  4. Select “Self Diagnostic Result” mode of “HANDS FREE MODULE”.
Is DTC detected?
YES>>
Refer to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair. Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

REPLACE INTELLIGENT KEY UNIT
1. When DTC “B2002–43” is detected, replace Intelligent Key unit.
>>
Replace Intelligent Key unit. Refer to Removal and Installation.

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