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Nissan Armada 2025-2026 Service and Repair Manual: Door Does Not Lock/unlock and Engine Does Not Start (req Sw/push Sw) (one Key)

Nissan Armada 2025-2026 Service and Repair Manual / Body Exterior, Doors, Roof & Vehicle Security / Security Control System / Door Does Not Lock/unlock and Engine Does Not Start (req Sw/push Sw) (one Key)

Description

Door does not lock/unlock with request switch, and engine does not start when push-button ignition switch is pressed while carrying Intelligent Key. (One Intelligent Key has the symptom, other keys operate normally.)

SYMPTOM TABLE (ONE INTELLIGENT KEY HAS THE SYMPTOM, OTHER KEYS OPERATE NORMALLY)

Door lock operation (remote keyless entry) Door lock operation (request switch of front/rear door) or trunk/back door open operation (opener switch of trunk/back door panel) Engine started with push-button ignition switch operation (Intelligent Key is within the detection area of inside key antenna) Engine started with push-button ignition switch operation (registered Intelligent Key placed next to push-button ignition switch) Unlock operation when approaching the vehicle, lock operation when away from the vehicle (registered Intelligent Key is within the detection area of outside key antenna)
OK NG No crank, No start OK OK

DIAGNOSIS PROCEDURE

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK INTELLIGENT KEY SYSTEM SYMPTOM TABLE

Check Intelligent Key system symptom table. Refer to Diagnosis Procedure.

>>

GO TO 2.

CHECK INTELLIGENT KEY LOW BATTERY WARNING

Check that the Intelligent Key low battery warning operates.

Is the Intelligent Key low battery warning operated?

YES>>

Replace Intelligent Key battery. Refer to Removal and Installation .

NO>>

GO TO 3.

CHECK INTELLIGENT KEY BATTERY

Check the Intelligent Key battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace Intelligent Key battery. Refer to Removal and Installation .

REGISTER INTELLIGENT KEY

  1. Register the Intelligent Key.

  2. Check operation after replacement.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 5.

REPLACE INTELLIGENT KEY

  1. Replace the Intelligent Key and perform registration again.

  2. Check operation after replacement.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 6.

REPLACE INTELLIGENT KEY UNIT

  1. Replace Intelligent Key unit. Refer to Removal and Installation.

  2. Check operation after replacement.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Check intermittent incident. Refer to Intermittent Incident.

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