Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

Check Intelligent Key relative signal strength.
Confirm vehicle Intelligent Key antenna signal strength.

CHECK INTELLIGENT KEY FUNCTION
Check Intelligent Key function using Signal Tech II Tool [- (J-50190)] or Remote Keyless Entry Tester [- (J-43241)] (shown).

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Does the test pass?

YES

Intelligent Key is OK.

NO

GO TO 2.

CHECK INTELLIGENT KEY COMPONENTS

Release the lock knob at the back of the Intelligent Key and remove the mechanical key.

Insert a flat-blade screwdriver (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the lower part.

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CAUTION:

Do not touch the circuit board or battery terminal.
The Intelligent Key is water-resistant. However, if it does get wet, immediately wipe it dry.

Remove the Intelligent Key battery.
CAUTION:
- Keep dirt, grease, and other foreign materials off the electrode contact area.
Visually inspect Intelligent Key internal components.

Is the inspection result normal?

YES

O TO 3.

Repair or replace malfunctioning parts.

CHECK INTELLIGENT KEY BATTERY
Check by connecting a resistance (approximately 300Ohm) so that the current value becomes about 10 mA.

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Standard

: Approx. 2.5 - 3.0V

Is the measurement value within specification?

YES

Intelligent Key battery is OK. Check remote keyless entry receiver. Refer to Component Function Check .

NO

GO TO 4.

REPLACE INTELLIGENT KEY BATTERY

Replace the Intelligent Key battery.

Align the tips of the upper and lower parts, and then push them together until it is securely closed.

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CAUTION:

When replacing battery, keep dirt, grease, and other foreign materials off the electrode contact area.

After replacing the battery, check that all Intelligent Key functions work properly.

Is the inspection result normal?

YES

Intelligent Key is OK.

Check remote keyless entry receiver. Refer to Component Function Check .