2015-2016 NISSAN; SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK

SERVICE BULLETIN

Classification:	Reference:	Date:
EL15-024a	NTB15-077a	July 22, 2016

 

NISSAN; SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK

 

This bulletin has been amended. Changes have been made throughout.  Please discard previous versions of this bulletin.

 

APPLIED VEHICLES:	2015 – 2016 Altima (L33)
	2015 – 2016 Pathfinder (R52)
	2015 – 2016 Pathfinder Hybrid (R52)
	2015 – 2016 Rogue (T32)
	2015 – 2016 Murano (Z52)
	2016 Murano Hybrid (Z52)
	2016 Maxima (A36)
	2016 Titan XD (A61)

 

 

IF YOU CONFIRM

The Intelligent Key intermittently or continuously does not function.

 

ACTION

Check the battery condition with the Signal Tech-II “I-Key Battery Test”.

IMPORTANT: Confirm that the Signal Tech-II has the most recent update. Update can be performed through ASIST / Specialty Tools / Signal Tech-II.

Figure A

 

SERVICE PROCEDURE

Intelligent Key Battery Condition Check

1. Turn ON the Signal Tech-II (see Figure A on page 1).

NOTE: This procedure will refer to the yellow up/down arrows and OK button on the Signal Tech-II key pad. Refer to Figure A on page 1 as needed.

2. Using the Signal Tech-II key pad; scroll to Toolkit with the yellow arrows and then press OK.

Figure 1

 

3. Scroll to I-Key Battery Test, and then press OK.

Figure 2

 

4. Scroll to (highlight) the model you are working on, and then press OK.

Figure 3

 

5. Select (highlight) model year range, and then press OK.

Figure 4

 

6. When Figure 5 is displayed, read the onscreen message and then press OK.

NOTE: On-screen instructions will aid in completing the Intelligent Key battery test.

Figure 5

 

7. Press the Intelligent Key lock button 3   times:

1^st press – wait one second

2^nd press – wait one second

3^rd press – wait one second

• A check mark will appear next to Read 1, 2, and 3 with each press of the lock button.

Figure 6

 

NOTE:

• In some rare cases the Intelligent Key battery may be too weak to transmit or the Intelligent Key may no longer function; check marks will not appear next to Read 1, 2, or 3.
• In this case, go to Manual Battery Voltage Test on page 5.

8. When step 7 is complete, the message in Figure 7 or Figure 8 will display.

Figure 7

 

Figure 8

 

9. If the message displayed is:

• Battery OK Press OK to Continue
  • The battery is OK and does not need to be replaced.
  • Refer to the Electronic Service Manual (ESM), section DLK – Door & Lock for further diagnosis.

 

• Battery Weak, replace battery Press OK to Continue
  • Replace the Intelligent Key battery.
  • Measure old battery’s voltage with a DVOM and write the voltage on the repair order.
  • Perform steps 6 – 8 on pages 3 – 4 again.

 

Manual Battery Voltage Test

1. Remove the mechanical key from the Intelligent Key.
2. Place a piece of tape on the end of a small flathead screwdriver.
3. Gently insert the screwdriver into one of the slots shown in Figures 9 and 10.

Figure 9

 

Figure 10                               

 

NOTE: 

• Figures 9 and 10 show the proper location to insert a tool to open the Intelligent Key.
• DO NOT insert a tool into the notches on the side of the Intelligent Key (if equipped) to pry it open, as this may damage the printed circuit board.
• DO NOT use excessive force when opening the Intelligent Key, as this may result in damage to the internal components.

Figure 11

 

4. Gently rotate the screwdriver until the two cover pieces separate (Figures 12 and 13).

Figure 12

 

Figure 13

 

5. Remove the battery and check the voltage.

Two methods can be used:

 

Check voltage with resistor (load test)  Check voltage without resistor

Refer to the Electronic Service Manual (ESM), section DLK–Door & Lock, for the battery voltage check procedure. If battery voltage is not within the 2.5 – 3.0 range, replace battery. NOTE: When inserting the new battery, make sure the  +  side of the battery faces the bottom cover piece. If battery voltage is within the 2.5 – 3.0 range, refer to the ESM for further diagnostic information.

If a resistor is unavailable, use a volt/ohm meter (VOM) to check the battery voltage. If the battery voltage is 2.7 or less, replace the battery. NOTE: When inserting the new battery, make sure the  +  side of the battery faces the bottom cover             piece. If the battery voltage is more than 2.7, refer to the ESM for further diagnostic information.

 

6. Reattach the two cover pieces by pushing them together.
7. Confirm all Intelligent Key functions operate correctly.

 

Intelligent Key Frequency Check

• The frequency of the Intelligent Key signal may be 315 MHz or 433/434 MHz.
• For diagnostic purposes, sometimes TECH LINE or other Nissan technical staff will ask for the frequency (315 MHz or 433/434 MHz) of an Intelligent Key you are working on.
• The following steps can be used to check the signal frequency.

 

1. Turn ON the Signal Tech-II.
2. Using the Signal Tech-II key pad; scroll to Toolkit with the yellow arrows and then press OK.

Figure 14

 

3. Scroll to Car/Key Signals Test, and then press OK.

Figure 15

 

4. Hold the Intelligent key near the Signal Tech-II and press the Lock or Unlock button.
5. The signal strength and frequency (315 MHz or 433/434 MHz) will be displayed.

Figure 16

 

PARTS INFORMATION

DESCRIPTION	PART #	QUANTITY
Intelligent Key Battery	B8599-C2032 Nissan B8599-C2032 Battery Fits: < Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-07-03 / Affiliate links / Images from Amazon Product Advertising API	1
Intelligent Key	(1)	1

 

(1) Use the VIN and the electronic parts catalog (FAST or equivalent) to look up the part number for the vehicle you are working on.

 

CLAIMS INFORMATION

Submit a Primary Failed (PP) type line claim using the following claims coding:

OPERATION	PFP	OP CODE	SYM	DIAG	FRT
Perform I-Key Battery Test with Signal Tech-II	(2)	RX5CAA	ZE	32	0.2

 

(2) Reference the Parts Information Table and use the applicable Part Number as the Primary Failed Part.

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NTB15-077a

https://www.nhtsa.gov/recalls?nhtsaId=10091417

https://static.nhtsa.gov/odi/tsbs/2016/SB-10091417-2280.pdf

 

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Last update on 2026-07-03 / Affiliate links / Images from Amazon Product Advertising API

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