May 2015
Dealer Service Instructions for:

Customer Satisfaction Notification P73

Reprogram Final Drive Control Module
Models

2005 - 2010

(WK) Jeep® Grand Cherokee

2006 - 2010

(XK) Jeep® Commander

NOTE: This notification applies only to the above vehicles equipped with a
Quadra-Trac II Full Time Active 4WD transfer case (sales code DHX) built
through March 10, 2010 (MDH SOP through 031010).
IMPORTANT: Some of the involved vehicles may be in dealer used vehicle
inventory. Dealers should complete this repair on these vehicles before retail
delivery. Dealers should also perform this repair on vehicles in for service.
Involved vehicles can be determined by using the VIP inquiry process.

Subject
The Final Drive Control Module (FDCM) software on about 295,600 of the above
vehicles may cause the “Service 4WD” light to come on and an inability to switch
4WD mode when trying to shift out of the current selected mode.
Repair
The Final Drive Control Module (FDCM) must be reprogrammed with new
software.
 Copyright 2015, FCA US LLC, All Rights Reserved (srg)

Customer Satisfaction Notification
P73 – Reprogram Final Drive Control Module
Parts Information
No parts are required to perform this service procedure.

Parts Return
No parts return required for this campaign.

Special Tools
The following special tools are required to perform this repair:
 NPN

wiTECH VCI Pod Kit

 NPN

Laptop Computer

 NPN

wiTECH Software

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Customer Satisfaction Notification
P73 – Reprogram Final Drive Control Module

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Service Procedure
NOTE: The wiTECH scan tool must be used to perform this recall. This
procedure must be performed with software release level 15.04 or higher. If
the reprogramming for the FDCM is aborted or interrupted, repeat the
procedure.

Reprogram the Final Drive Control Module (FDCM):
1. Open the hood. Install a battery charger and verify that the charging rate
provides 13.0 to 13.5 volts. Do not allow the charger to time out during the
flash process. Set the battery charger timer (if so equipped) to continuous
charge.
NOTE: Use an accurate stand-alone voltmeter. The battery charger
voltmeter may not be sufficiently accurate. Voltages outside of the
specified range will cause an unsuccessful flash. If voltage reading is too
high, apply an electrical load by activating the park or headlamps and/or
HVAC blower motor to lower the voltage.
2. Connect the wiTECH VCI pod to the vehicle data link connector located under
the steering column.
3. Place the ignition in the “RUN” position.
4. Open the wiTECH Diagnostic application.
5. Starting at the “Select Tool” screen, select the row/tool for the wiPOD device
you are using.
6. Enter your “User id” and “Password”, then select “OK”.
7. Select the “Next” tab at the bottom of the screen.
8. From the “Vehicle View” screen, click on the “FDCM” icon.
9. From the “FDCM View” screen select the “Flash” tab. Compare the “Current
ECU Flash Number” with the “New Part Number” listed on the “sort table”.
If the “Current ECU Flash Number” is the same as the “New Part Number”
continue to Step 17. If the part numbers are not the same, continue with
Step 10.

Customer Satisfaction Notification
P73 – Reprogram Final Drive Control Module

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Service Procedure (Continued)

10. With the cursor over the desired flash file, click the small green arrow button on
the right side of the screen.
11. From the “ECU Flash” screen follow the wiTECH screen instructions to
complete the flash.
12. Once the flash is complete click the “OK” button on the “ECU Flash” screen.
13. From the “FDCM View” screen, compare the “Current ECU Flash Number”
with the “New Part Number” listed on the “sort table”. If the “Current
ECU Flash Number” is the same as the “New Part Number” the flash is
complete. Continue with Step 14. If the part numbers are not the same, repeat
Steps 8 through 13.
14. Select “Vehicle View” from the “FDCM View” screen.
15. From the “All DTC’s” tab, select the “Clear Stored DTC’s” button.
16. Select “OK” from the pop-up text box.
NOTE: Any active Diagnostic Trouble Codes (DTC’s) may require an
additional key cycle from “ON” to “OFF” to change DTC status from
“active” to “stored”.
17. Turn the ignition to the “OFF” position, remove the wiPOD and battery
charger from the vehicle and then close the hood.

18. Return the vehicle to the customer.

Customer Satisfaction Notification
P73 – Reprogram Final Drive Control Module

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Completion Reporting and Reimbursement
Claims for vehicles that have been serviced must be submitted on the
DealerCONNECT Claim Entry Screen located on the Service tab. Claims
submitted will be used by FCA to record Customer Satisfaction Notification
service completions and provide dealer payments.
Use the following labor operation number and time allowance:
Labor Operation
Number

Time
Allowance

Software Update Previously Performed

21-P7-31-81

0.2 hours

Reprogram Final Drive Controller Module

21-P7-31-82

0.2 hours

Add the cost of the parts package plus applicable dealer allowance to your claim.
NOTE: See the Warranty Administration Manual, Recall Claim Processing
Section, for complete claim processing instructions.

Dealer Notification
To view this notification on DealerCONNECT, select “Global Recall System” on
the Service tab, then click on the description of this notification.

Owner Notification and Service Scheduling
All involved vehicle owners known to FCA are being notified of the service
requirement by mail. They are requested to schedule appointments for this service
with their dealers. A generic copy of the owner letter is attached.
Enclosed with each owner letter is an Owner Notification postcard to allow owners
to update our records if applicable.

Customer Satisfaction Notification
P73 – Reprogram Final Drive Control Module

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Vehicle Lists, Global Recall System, VIP and Dealer Follow Up
All involved vehicles have been entered into the DealerCONNECT Global Recall
System (GRS) and Vehicle Information Plus (VIP) for dealer inquiry as needed.
GRS provides involved dealers with an updated VIN list of their incomplete
vehicles. The owner’s name, address and phone number are listed if known.
Completed vehicles are removed from GRS within several days of repair claim
submission.
To use this system, click on the “Service” tab and then click on “Global Recall
System.” Your dealer’s VIN list for each recall displayed can be sorted by: those
vehicles that were unsold at recall launch, those with a phone number, city, zip
code, or VIN sequence.
Dealers should perform this repair on all unsold vehicles before retail
delivery. Dealers should also use the VIN list to follow up with all owners to
schedule appointments for this repair.
VIN lists may contain confidential, restricted owner name and address information that was
obtained from the Department of Motor Vehicles of various states. Use of this information is
permitted for this notification only and is strictly prohibited from all other use.

Additional Information
If you have any questions or need assistance in completing this action, please
contact your Service and Parts District Manager.
Customer Service / Field Operations
FCA US LLC

REPROGRAM FINAL DRIVE
CONTROL MODULE
____________________________________________________________________________________

CUSTOMER SATISFACTION NOTIFICATION

P73

This notice applies to your vehicle (VIN: xxxxxxxxxxxxxxxxx).
Dear: (Name)
At FCA US LLC, we recognize that the success of our business depends on the satisfaction of our customers. We
are constantly monitoring the quality of our products and looking for opportunities to improve our vehicles even
after they are sold. Because your long-term satisfaction is important to us, we are contacting you on important
improvements we would like to make to your vehicle. This will be done at no charge to you.
We are recommending the following improvements be performed on certain 2005 through 2010 model year
Jeep® Grand Cherokee and 2006 through 2010 model year Jeep® Commander vehicles equipped with a
Quadra-Trac II Full Time Active 4WD transfer case.
Recommended
Service:

The Final Drive Control Module (FDCM) software on your vehicle may cause the
“Service 4WD” light to come on and an inability to switch 4WD mode when trying to
shift out of the current selected mode.

What your dealer
will do:

FCA will service your vehicle free of charge (parts and labor). To do this, your dealer
will reprogram the Final Drive Control Module (FDCM) with new software. The work will
take about ½ hour to complete. However, additional time may be necessary depending on
service schedules. We recommend that you make an appointment with your dealer to
minimize your inconvenience.

What you should
do:

Simply contact your Chrysler, Jeep, or Dodge dealer, at your convenience, to schedule a
service appointment. Your dealer will collect the necessary information to ensure that the
appropriate parts are available so your service can be completed in a timely manner.
Although not required, we recommend bringing this letter with you to your dealer, when
you bring your vehicle in for this service.

If you need help:

Please contact the FCA US Customer Assistance Center at 1-800-853-1403.

Please help us update our records by filling out the attached prepaid postcard, if any of the conditions listed on the
card apply to your vehicle. If you have further questions go to recalls.mopar.com.
If you have already experienced this specific condition and have paid to have it repaired, you may visit
www.fcarecallreimbursement.com to submit your reimbursement request online or you can mail your original
receipts and proof of payment to the following address for reimbursement consideration: FCA Customer
Assistance, P.O. Box 21-8004, Auburn Hills, MI 48321-8007, Attention: Recall Reimbursement. Once we
receive and verify the required documents, reimbursement will be sent to you within 60 days. If you’ve had
previous repairs and/or reimbursement you may still need to have the recall repair performed on your vehicle.
We apologize for any inconvenience this service may cause to your schedule. FCA is committed to providing our
customers with world class quality products, ensuring that you have a positive dealership experience and following
up on any issues and concerns that you may have in a timely manner through our Customer Assistance Center.
Thank you for being our customer.
Sincerely,
Customer Service / Field Operations
FCA US LLC