Voluntary Service Campaign Body Control Module Sub-Harness (ITB05-054)

VOLUNTARY SERVICE CAMPAIGN BODY CONTROL MODULE SUB-HARNESS

SERVICE CAMPAIGN BULLETIN

INTRODUCTION

Infiniti is committed to providing the highest levels of product quality and customer satisfaction. We know that towing a trailer may have been an important consideration in the customer's purchase decision. In new QX56 vehicles, Infiniti recently introduced enhanced electronic circuitry which may help further protect a vehicle from damage or fire caused by a short circuit in the electrical system of a towed trailer  due to problems with the trailer's wiring or mis-installation of trailer lighting or electrical accessories. Infiniti is making this production enhancement available to owners of previously purchased vehicles so that they will have the same protection should they ever tow a trailer with a defective electrical system.

IDENTIFICATION NUMBER

Nissan has assigned identification number P5235 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign.

NUMBER OF VEHICLES IN THIS CAMPAIGN

The number of vehicles in this campaign is 20,500.

DEALER RESPONSIBILITY

It is the Infiniti dealer's responsibility to check Infiniti Net for the campaign status on each vehicle falling within the range of this Voluntary Service Campaign (P5235  ) that enters the service department. This includes vehicles purchased from private parties or presented by transient (tourist) owners and vehicles in an Infiniti dealer's inventory.

PROCEDURE A: TRAILER LIGHTS WIRING CONNECTOR TERMINAL CHECK

Check the condition of the BCM by performing a terminal check at the Trailer Lights Wiring Connector (near the trailer hitch) as follows.

1. Turn the ignition switch to the ON position.
2. Make sure the combination switch and hazard switch are OFF.
3. Using a Test Light, check for power at terminals #2  and #5  (see Fig 2).
   • If there is power at either terminal, replace the BCM. Return to the Repair Flow Chart for further instructions.
   • If there is NO power at either terminal, the circuit is OK. Return to the Repair Flow Chart for further instructions.
     Fig 2: Checking Condition Of BCM

     Courtesy of NISSAN MOTOR CO., U.S.A.
4. Turn the ignition switch OFF.

PROCEDURE B: BCM SUB-HARNESS INSTALLATION & BCM REPLACEMENT

1. If you determined the BCM needs to be replaced (from Procedure A Terminal Check),
   • First perform BCM "Read Configuration" using CONSULT-II.
   • To do this, refer to "READ CONFIGURATION PROCEDURE" in section "BCS" in the applicable service manual.
2. Record all radio station presets and then disconnect the negative battery cable.
   RADIO STATION RECORD CHART
   
   

   	1	2	3	4	5	6
   AM
   FM1
   FM2

3. Remove the Driver's Side Instrument Panel Lower Cover (see Fig 3).
   • Remove two Screws at the lower corners of the Lower Cover.
   • Carefully pull the cover rearward to release the securing clips.
   • Disconnect all wire harness connectors from the panel.
     Fig 3: Locating Driver's Side Instrument Panel Lower Cover

     Courtesy of NISSAN MOTOR CO., U.S.A.
4. Remove four Bolts and remove the Driver's Side Lower Knee Protector (see Fig 4).
   Fig 4: Locating Driver's Side Lower Knee Protector

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Remove the LH Instrument Lower Cover next to the Accelerator Pedal (see Fig 5).
   • Carefully pull outward  to release the Securing Clips.
     Fig 5: Locating LH Instrument Lower Cover

     Courtesy of NISSAN MOTOR CO., U.S.A.
6. If the BCM needs to be replaced as confirmed by Procedure A Terminal Check, go ahead and replace the BCM now. Then continue with step #8 (below).
   • Remove all three Harness Connectors from the BCM (see Fig 6).
   • Remove the two BCM Mounting Bolts and remove BCM (see Fig 6).
   • Install new BCM.
   • Reconnect the top connector ONLY (as viewed in Fig 6).
7. If the BCM does not  need to be replaced,
   • Install the new Sub-Harness.
   • Start by disconnecting ONLY the two vertical Connectors at the BCM (see Fig 6).
     Fig 6: Locating BCM Components

     Courtesy of NISSAN MOTOR CO., U.S.A.
8. Connect the fuse end of the BCM Sub-Harness to the BCM as shown in Fig 7.
   • Make sure the connectors are securely connected ("snapped" in place) to the BCM.
     Fig 7: Connecting Fuse End Of BCM Sub-Harness To BCM

     Courtesy of NISSAN MOTOR CO., U.S.A.
9. At the other end of the BCM Sub-Harness:
   • Connect the White Connector to the vehicle-side harness white connector (see Fig 8).
   • Then connect the Black Connector to the vehicle-side harness black connector (see Fig 8).
   • Make sure the connectors are securely connected ("snapped" in place).
     Fig 8: Connecting Connectors To Vehicle-Side Harness Connectors

     Courtesy of NISSAN MOTOR CO., U.S.A.
10. Secure the new BCM Sub-Harness to the Existing Vehicle Harness (see Fig 9).
    • Use the Tie Wrap that comes already attached to the new Sub-Harness.
Fig 9: Securing Sub-Harness
Courtesy of NISSAN MOTOR CO., U.S.A.
11. Re-connect the negative battery cable.
12. Confirm the installed BCM Sub-Harness does not interfere with the operation of the adjustable pedal assembly.
    NOTE: It is okay if the BCM Sub-Harness has slight  contact with the adjustable pedal assembly when the pedal assembly is adjusted to the end of its upward travel (closest to the driver).
13. Re-install all components in reverse order of removal.
14. Re-program all radio station presets.
15. If the BCM was replaced, you'll need to do the following:
    IMPORTANT: You MUST perform the following steps according to the applicable service manual to ensure the new BCM is properly programmed to the original vehicle settings.
    • BCM "Write Configuration" using CONSULT-II. Refer to "WRITE CONFIGURATION PROCEDURE" in section "BCS"  of the applicable service manual.
    • Initialization of NATS System and Registration of all NATS Ignition Key I.D.s. Refer to Infiniti Technical Bulletin ITB04-018a.
    • I.D. Registration Procedure of the Low Tire Pressure Warning System. Refer to "I.D. REGISTRATION PROCEDURE" in section "WT"  of the applicable service manual.
    • Register I.D. Code for Remote Keyless Entry Keyfobs. Refer to section "BL"  of the applicable service manual.
    • BCM Headlamp Configuration. Refer to "HEADLAMP" information in section "LT"  of the applicable service manual.

PARTS INFORMATION

DESCRIPTION	PART NUMBER	QUANTITY
BCM Sub-Harness	24167-ZH00A	1

CLAIMS INFORMATION

Submit a Campaign (CM) line claim using the following claims coding: 

"CM" I.D.: P5235 

DESCRIPTION	OP CODE	FRT
Install BCM Sub Harness	P52350	0.4 hrs

OR: 

DESCRIPTION	OP CODE	FRT
Install BCM Sub Harness & RPL BCM Controller	P52351	0.9 hrs

OWNER'S LETTER

Dear Infiniti Owner:

Infiniti is committed to providing the highest levels of product quality and customer satisfaction. We know that towing a trailer may have been an important consideration in your vehicle's purchase. In new QX56 vehicles, Infiniti recently introduced enhanced electronic circuitry which may help further protect your vehicle from damage or fire caused by a short circuit in the electrical system of a towed trailer  due to problems with the trailer's wiring or mis-installation of trailer lighting or electrical accessories. This is to advise you that Infiniti is making this production enhancement available to you free of charge so that you will have the same protection should you ever tow a trailer with a defective electrical system.

What You Should Do 

To take advantage of this offer, please contact your Infiniti dealer at your earliest convenience to arrange an appointment to have this new circuit installed on your vehicle at no cost to you. This service should take about two hours to complete, but you should plan to leave your vehicle at the dealership for a full day. Please bring this notice with you when you keep your service appointment.

Thank you for choosing Infiniti.

Infiniti Division

Nissan North America, Inc.