Key Warning Lamp Does Not Illuminate

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before performing the diagnosis in the following table, check "Trouble Diagnosis Procedure". Refer to "WORK FLOW ".
Make sure that vehicle is under the condition shown in "Conditions of vehicle" before starting diagnosis, and check each symptom.
If the following "symptoms" are detected, check systems shown in the "Diagnoses/service procedure" column in this order.
Check if ignition switch turns using mechanical key. If it turns, check if "ENGINE START BY I-KEY" in "WORK SUPPORT" mode is ON.

Conditions of Vehicle (Operating Conditions)

Intelligent Key is registered.
Key is not inserted in ignition switch.
One or more registered Intelligent Keys are in the vehicle.

Symptom	Diagnosis/service procedure	Refer to
Ignition switch does not turn ON with Intelligent Key. [KEY warning lamp does not illuminate].	1. Intelligent Key unit power supply and ground circuit check.	POWER SUPPLY AND GROUND CIRCUIT
	2. Ignition knob switch check.	IGNITION KNOB SWITCH
	3. Key switch check.	KEY SWITCH (INTELLIGENT KEY UNIT INPUT)
	4. Replace Intelligent Key unit.	INTELLIGENT KEY UNIT