Campaign - Software Update For TCC Function

12-007

March 13, 2012

*Applies To:
2010-12 MDX - Check the iN VIN status for eligibility 2010-12 ZDX - Check the iN VIN status for eligibility*

Product Update: Software Update for Lock-up Clutch Function
(Supersedes 12-007, dated February 24, 2012, to revise the information marked by the black bars and asterisks)

*REVISION SUMMARY

In Applies to, and under SOFTWARE INFORMATION, 2012 model year MDX and ZDX information was added.*

BACKGROUND

A judder from the torque converter lock-up clutch may be felt while driving between 20-60 mph. To minimize the opportunity for the judder to occur, a software update for the transmission is available.

CLIENT NOTIFICATION





All owners of affected vehicles will be sent a notification of this product update. An example of the client letter is included at the end of this service bulletin.

Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.

In addition, check for a punch mark above the ninth character of the engine compartment VIN. A punch mark in that location means this product update has already been completed.

Some vehicles affected by this campaign may be in your new or used vehicle inventory. Repair these vehicles before they are sold.

CORRECTIVE ACTION

Update the PGM-FI or the A/T software. Then, if the vehicle is client-owned or previously owned, replace the ATF.

PARTS INFORMATION

Washer: P/N 90441-PK4-000
Drain Washer: P/N 90471-PX4-000

REQUIRED MATERIALS

Automatic Transmission Fluid DW-1 (one quart;
four required): P/N 08200-9008A

Automatic Transmission Fluid DW-1 (55 gallon drum):
P/N 08200-9009





WARRANTY CLAIM INFORMATION

Failed Part: P/N 37820-RYE-A76

Defect Code: 5TJ00

Symptom Code: S2800

Skill Level: Repair Technician

SOFTWARE INFORMATION

NOTE:
Unnecessary or incorrect repairs resulting from a failure to update the HDS or MVCI are not covered under warranty.

MVCI Control Module (CM) Update:
* Application Version V2.16.04 or later
Database update 22-FEB-2012 or later*

HDS Software Version:
* 3.002.033 or later*

Before beginning the repair, make sure that both the HDS and MVCI are updated as listed above.

*Do only the update listed in this service bulletin.*

Check that the MVCI indicates the applicable program
ID listed below (or a later program ID) as the
Recommended Update when the update begins.

If the MVCI displays This vehicle does not need an update at this time during the update, the software for this service bulletin is already installed.





For more information about updating the HDS, the
MVCI, and vehicle systems, refer to Service Bulletin
01-026, Updating Control Units/Modules.

REPAIR PROCEDURE

NOTE:
MDX is shown; ZDX is similar.

1. Update the PGM-FI or the A" software. Refer to Service Bulletin 01-026, Updating Control Units/ Modules.

^ If this is a client-owned or previously owned vehicle, go to step 2.

^ If the vehicle is new and unsold, do not change the ATF. Go to step 15 to punch the VIN.

2. Start the engine and let it warm up to normal operating temperature (the radiator fan comes on), position the vehicle on a lift, and turn the engine off.

3. ZDX: Remove the air cleaner.

4. ZDX: Remove the intake air duct.





5. Remove the ATF filler bolt and the sealing washer.

6. Raise the vehicle, and make sure it's securely supported.





7. Remove the engine undercover.





8. Remove the drain plug, and drain the ATF.

9. Reinstall the drain plug using a new sealing washer, and torque it to 49 N.m (36 lb-ft).

10. Reinstall the engine undercover. Torque the bolts to 9.3 N.m (7 lb-ft), then lower the vehicle.

11. Refill the transmission with 3.3 quarts of ATF through the filler hole.

12. Install the ATF filler bolt using a new sealing washer, and torque it to 44 N.m (33 lb-ft).





13. Check that the fluid is filled to the proper level.

14. ZDX: Reinstall the intake air duct and the air cleaner.





15. Center-punch a completion mark above the ninth character of the engine compartment VIN:





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